DigiTech Musical Instrument RP21D User Manual

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DECLARATION OF CONFORMITY  
Manufacturer’s Name:  
Digitech Electronics  
8760 S. Sandy Parkway  
Sandy, Utah 84070, USA  
Manufacturer’s Address:  
declares that the product:  
Product Name:  
RP21, RP21D  
Product Options:  
All (requires a Class II power adapter that conforms to the requirements of  
EN60065, EN60742, or equivalent.)  
conforms to the following Product Specifications:  
Safety:  
EN 60065 (1993)  
IEC 65 (1985) with Amendments 1, 2 & 3  
EMC:  
EN 55013 (1990)  
EN 55020 (1991)  
Supplementary Information:  
The product herewith complies with the requirements of the Low Voltage Directive  
73/23/EEC and EMC Directive 89/336/EEC as amended by Directive 93/68/EEC.  
Digitech  
President of Digitech  
8760 S. Sandy Parkway  
Sandy, Utah 84070, USA  
Tel: 801.566.8800  
Fax: 801.566.7005  
Effective February 10, 1999  
European Contact: Your Local Digitech Sales and Service Office or  
International Sales Office  
8760 S. Sandy Parkway  
Sandy, Utah 84070, USA  
Tel. 801-568-7638  
Fax 801-568-7642  
II  
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We at Digitech are very proud of our products and back-up each one we sell with the following warranty:  
1. The warranty registration card must be mailed within ten days after purchase date to validate this warranty.  
2. Digitech warrants this product, when used solely within the U.S., to be free from defects in materials and workmanship under  
normal use and service.  
3. Digitech liability under this warranty is limited to repairing or replacing defective materials that show evidence of defect,  
provided the product is returned to Digitech WITH RETURN AUTHORIZATION, where all parts and labor will be covered up to a  
period of one year. A Return Authorization number may be obtained from Digitech by telephone. The company shall not be liable  
for any consequential damage as a result of the product's use in any circuit or assembly.  
4. Proof-of-purchase is considered to be the burden of the consumer.  
5. Digitech reserves the right to make changes in design, or make additions to, or improvements upon this product without  
incurring any obligation to install the same on products previously manufactured.  
6. The consumer forfeits the benefits of this warranty if the product's main assembly is opened and tampered with by anyone other  
than a certified Digitech technician or, if the product is used with AC voltages outside of the range suggested by the  
manufacturer.  
7. The foregoing is in lieu of all other warranties, expressed or implied, and Digitech neither assumes nor authorizes any person to  
assume any obligation or liability in connection with the sale of this product. In no event shall Digitech or its dealers be liable  
for special or consequential damages or from any delay in the performance of this warranty due to causes beyond their control.  
Digitech™, S-DISCII™, Whammy™, and Silencer II™ are registered trademarks of the Harman Music Group Incorporated.  
NOTE: The information contained in this manual is subject to change at any time without notification. Some information contained in this  
manual may also be inaccurate due to undocumented changes in the product or operating system since this version of the manual was  
completed. The information contained in this version of the owner's manual supersedes all previous versions.  
III  
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Table of Contents  
Temolo ..................................................................................................33  
Panner ..................................................................................................33  
Delays ....................................................................................................33  
Multi Effects Modules ............................................................................35  
Reverse Delay ........................................................................................36  
Time Warp ............................................................................................36  
Samplers................................................................................................36  
Reverb....................................................................................................37  
Gated Reverb..........................................................................................38  
Detuners ................................................................................................40  
Pitch Shifters and Harmony....................................................................41  
Whammy Effects ....................................................................................43  
Auto Wah................................................................................................43  
Equalizers ..............................................................................................44  
Graphic Equalizers ................................................................................44  
Parametric Equalizers ............................................................................45  
Master Mix ..............................................................................................46  
Cabinet Emulator ..................................................................................46  
Storing/Copying Programs ....................................................................47  
Safety Information....................................................................................................I  
Declaration of Conformity ......................................................................................II  
Warranty ..................................................................................................................III  
Table of Contents ....................................................................................................IV  
Section One - Introduction  
Congratulations........................................................................................................1  
Included Items ........................................................................................................1  
Product Features ......................................................................................................1  
Quick Start................................................................................................................2  
A Guided Tour of the RP21 ..................................................................3  
The Front Panel......................................................................................3  
The Rear Panel ......................................................................................4  
Getting Started....................................................................................................5  
Making Connections ..............................................................................5  
Mono ....................................................................................................5  
Stereo ....................................................................................................6  
Direct to Console ..................................................................................6  
Digital Output ........................................................................................6  
Powering................................................................................................7  
About the RP21 ......................................................................................7  
Program Mode ......................................................................................7  
The Display ............................................................................................7  
The Programs ........................................................................................8  
The Footswitches....................................................................................8  
The Expression Pedal ............................................................................8  
The Effects..............................................................................................8  
Preamp/Analog Modules ........................................................................9  
Digital Effects Modules ..........................................................................9  
Section Three - Advanced Topics  
Footcontroller Fuctions ........................................................................48  
Assigning Programs................................................................................48  
Assigning on/off Functions....................................................................48  
Expression Pedal Assignments ............................................................49  
Assigning the Wah ..................................................................................50  
Assigning Morph or Volume ..................................................................50  
Modifiers..................................................................................................51  
Dynamic Filters ......................................................................................51  
Low Frequency Oscillators ....................................................................51  
MIDI CC’s ..............................................................................................51  
Assigning a Modifier ..............................................................................51  
Viewing, Changing, or Deleting Assignments ....................................52  
Tuner ........................................................................................................53  
Section Two - Editing Functions  
Selecting a Program ..............................................................................10  
Creating Programs..................................................................................10  
Preamp Defaults......................................................................................10  
Editing the Preamp ................................................................................10  
The Preamp Effects ................................................................................10  
Compressor............................................................................................11  
Wah........................................................................................................13  
Tube Distortion ......................................................................................13  
Saving a Distortion Default ....................................................................14  
Solid State Distortion..............................................................................15  
10 Band Graphic EQ ..............................................................................16  
Noise Gate..............................................................................................17  
Master Preamp Setting ..........................................................................19  
Storing a User Preamp Default ............................................................21  
Naming a Default ....................................................................................21  
Default List ..............................................................................................22  
Digital Effects ..........................................................................................24  
Configuration Chart................................................................................24  
Section Four - Utilities  
Output Mode............................................................................................54  
Cabinet Emulator....................................................................................54  
MIDI Channels ........................................................................................54  
Program Receive Map ............................................................................55  
Program Transmit Map..........................................................................55  
SysEx Channel and MIDI Merge ..........................................................56  
SysEx Dump ............................................................................................56  
Program Dump........................................................................................57  
User Defalut Dump ................................................................................57  
Assigning a MIDI CC to Pedals ............................................................58  
Bank Names....................................................................................59  
Volume Pedal Update ............................................................................59  
Factory Reset ..........................................................................................59  
Recalibrating the Expression Pedal ....................................................60  
Changing Effects......................................................................................25  
Effect Types..............................................................................................28  
Choruses & Flangers ..............................................................................28  
Chorus ..................................................................................................28  
Flanger ..................................................................................................30  
Phaser....................................................................................................31  
Pedal Phaser ..........................................................................................31  
Rotary Speaker ......................................................................................32  
Trmolo and Panner ................................................................................32  
Section Five - Appendix  
Factory Program List ..................................................................................61  
Specifications ..........................................................................................62  
MIDI Implementation Chart..................................................................63  
IV  
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RP21D User’s Guide  
Section One - Introduction  
Section-1 Introduction  
Congratulationson your purchase of the Digitech RP21D!  
The DigiTech RP21D is one of the most powerful preamp processors in the world. The exclusive dual preamp paths, and palette of great  
digital effects, combined with the flexible routing and a digital output make the RP21D an extremely versatile sound shapingtool for your  
music in the studio or on stage. This user’s guide is your key to understanding how to get the most out of the RP21D. Please read it carefully  
and familiarize yourself with the controls.  
Your RP21D was carefully assembled and packaged at the factory. Before you proceed any further, make sure the following items are  
included:  
• (1) User’s Guide  
• (1) RP21D Preamp Processor  
• (1) DigiTech Warranty Card  
• (1) PS0940 or PS0920 Power Supply  
Please take a moment to fill out the warranty registration card, and be sure to save all packing materials. The warranty is your safeguard in  
the unlikely event that the unit requires servicing, and the packing materials should be used to return the unit.  
Once again, thank you for your purchase, and enjoy your RP21D.  
RP21D Features:  
• Dual Preamp Path  
• Built-in Expression Pedal  
• Tube Preamp (12AX7)  
• Full Band Width Effects (20 Hz-20 kHz)  
• 24-bit Signal Path, 48-bit Internal Data Path  
• Up to 4 Digital Effects at once  
• Flexible Effect Routing  
• S-DISC II Processing  
• Programmable Speaker Cabinet Emulator  
• Chromatic Tuner  
• Full MIDI Implementation  
• S/PDIF Digital Outputs  
• Continuous Control of All Effects and Parameters  
• Simple User Interface  
1
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RP21D User’s Guide  
Section One - Introduction  
Quick Start  
The RP21D comes with 128 pre-programmed factory presets, and 128 user presets. You will find that from the factory, the user presets are  
exact duplicates of the factory presets. This allows you to experiment without running the risk of losing any of the original sounds contained  
in the RP21D.  
For those of you who prefer to burn now and read later, we’ve included this Quick Start section to get you up and running.  
Making Connections:  
Connect your instrument to the input jack on the rear panel. Connect from the Left Output (for mono operation), or the Left and Right  
Outputs (for stereo operation) to the input(s)of your amplifier(s) or power amp.  
Apply Power:  
Turn the Output knob on the rear panel of the RP21D all the way down (fully counter clockwise). Connect the plug of the PS0940 power  
supply to the power jack on the RP21D. Connect the other end of the PS0940 power supply to an AC outlet. Begin playing your instrument  
and adjust the Input Level knob until the Input Clip LED flashes with strongest signal, then slightly reduce the Input Level. Turn the power of  
your amplifier(s) to the on position. Gradually increase the Output knob to achieve the desired volume.  
Select Program:  
Use the Footswitches or the Data Wheel to scroll through the different programs. Once you have found some Programs that suit your taste,  
you can alter the sounds to your specific needs. By pressing the Effects button, you can roll the Data Wheel to access any of the effects  
contained within your selected Program. The 1-4 buttons will select the specified parameters related to each effect. The Next Page, and  
Previous Page buttons will display all of the pages of related effect parameters. Once a parameter has been selected, you may increase or  
decrease the parameter value with the Data Wheel. You can adjust any of these parameters to your liking, and remember that you are not at  
risk of losing any sounds so, don’t be afraid to experiment.  
2
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RP21D User’s Guide  
Section One - Introduction  
A Guided Tour of the RP21D  
The Front Panel  
D
1. Footswitches - The footswitches are used to call up Programs, change banks, access the tuner, bypass all effects, turn individual effects  
on and off, or change the value of a specific parameter.  
2 Display - The display provides all information regarding the current Program, parameter edit functions, utility set up, and tuning  
indications.  
3. Store Button- The Store button is used to save your custom edits to the user Programs. This button will light when changes have been  
made to any Program, indicating that to retain these changes, they must be stored.  
4. Program Button- The Program button lights to indicate that you are in the Program mode as opposed to edit mode. While in Program  
mode, the RP21D provides access to all Programs, and the ability to turn effects on or off. You cannot modify your  
Programs in the Program mode. This button can act as an escape key taking you out of edit mode, or if you are  
already in Program mode, you can toggle from factory to user Programs by pressing and holding this button.  
5. 1-4 Buttons - These buttons will access the parameters shown in the display. Each parameter in the display will have a number next to  
the parameter. The parameters can be accessed by pressing the button corresponding to the the numbered parameters.  
6a. Preamp Button - The Preamp button will provide direct access to the effect modules in the Preamp section of the RP21D. This button  
will light when you are editing modules in the Preamp section.The modules in the Preamp section include the  
Compressor, Analog Wah, Tube Distortion, 10 band Graphic EQ for the Tube Distortion, Solid State Distortion, 10  
band Graphic EQ for the Solid State Distortion, and Noise Gate. Successive presses of the preamp button will  
advance to the next effect module in the Preamp section.  
6b. Effects Button - The Effects button provides direct access to the effect configurations as well as the individual digital effect modules.  
This button will light while you are editing effects in the digital section of the RP21D.Successive presses of the Effects  
button will advance to the next digital effect module in the current configuration.  
3
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RP21D User’s Guide  
Section One - Introduction  
6c. Utility Button - This button will provide access to the utility functions in the RP21D. This button will light when you are in the Utility  
menu.Once in the Utility menu, you may use the Previous Page and Next Page buttons to select any of the 15 pages of  
Utilities. The Utility menu includes Output mode, MIDI functions, System Exclusive dumps, Bank Names,  
Reinitialization menu, and Expression Pedal Calibration menu.  
6d. Previous Page Button - The RP21D may have several “pages” of parameters or menus for a particular section of programing. The  
Previous Page button will allow you to step backwards through these pages of menus or parameters.  
Successive presses of the Previous Page button will back step by one page for each press. This button will  
light when an effect or menu contains more than one page.  
6e. Next Page Button - The RP21D may have several “pages” of parameters or menus for a particular section of programing. The Next  
page button will allow you to advance forward through the pages or menus. Successive presses of the Next Page  
button will advance forward by one page for each press. This button will light when an effect or menu contains  
more than one page.  
6f. Assign Button - The Assign button is used to assign Programs, effect on/off functions, or parameters to the expression pedal,  
footswitches, or MIDI CC’s. It is also used for viewing pedalboard assignments, or adjusting minimum/maximum  
values of assigned parameters. This button will light while in the assignment menu. Making assignments is as easy as  
selecting the Program or parameter that you wish to assign, pressing the assign button once, and selecting the  
footswitch or pedal that you wish to use to access the Program or parameter. See page 48 for more on assigning  
functions to the pedalboard.  
7. Data Wheel - This rotary knob is used to scroll through Programs, adjust parameter values, or change the status of any function  
currently selected in the display.  
8. Expression Pedal - The Expression Pedal is used for real time control of parameters during performance. This pedal may control  
volume in one Program, wah in another Program, morph between the tube and solid state preamp in another  
Program, or vary the delay time in yet another Program. Individual boundaries may be set up for the minimum and  
maximum parameter values that will be accessed by the Expression Pedal. See page 49 for more on making  
expression pedal assignments.  
Rear Panel  
1. Input Jack - This is where your signal enters the RP21D. Connect from the output of your instrument to this jack.  
2. Input Level - This knob adjusts the strength of the signal as it enters the RP21D. Set this level so that the clip LED lights occasionally  
with strong signals.  
3. Clip LED - This LED will light when the input signal is overdriving the input of the RP21D. The Input Level knob should be adjusted in  
conjunction with watching this LED. The Clip LED should light occasionally with strong signal.  
4. Output Level - This knob controls the level of signal coming out of the RP21D.  
5. Right Output - This jack should be used for stereo applications. Connect from this output to the input of a second amplifier, or the  
right input of a stereo power amp.  
4
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RP21D User’s Guide  
Section One - Introduction  
6. Left/Mono Output - This output should be used for all stereo and mono applications. Connect from this jack to the input of your  
amplifier, or the left input of a stereo power amp. If the RP21D is to be used in a mono application, set the Output  
Mode to mono in the utility menu.  
7. Headphone Output - This jack delivers a speaker compensated, stereo signal. Connect stereo headphones to this jack. Do not connect  
a mono jack here as doing so may damage the output driver.  
8. Power Input - This connector is used to power the RP21D. Use only the DigiTech PS0940 power supply provided.  
9. MIDI In - This jack is used to receive all incoming MIDI data intended to control the RP21D. Connect from this jack to the MIDI out of  
a sequencer, MIDI controller, or MIDI storage device.  
10. MIDI Out/Thru - This jack is used for all MIDI data being sent out of the RP21D. Connect from this jack to the MIDI input of any  
external MIDI devices that you wish to control. The MIDI Thru function of this jack simply sends out the same  
information that is received at the MIDI In of the RP21D.  
11. S/PDIF Output - This is the digital output from the RP21D. The signal at this output is in a digital format, and is to be connected to a  
digital S/PDIF input such as those found on digital recorders.  
Getting Started  
Making Connections  
Before connecting the RP21D, make sure that the power to your amplifier is turned off, and that the power to the RP21D is disconnected.  
There is no power switch on the RP21D. To turn the RP21D on, simply plug the power supply in to an AC outlet. To turn the RP21D off,  
unplug the power supply from the AC outlet.  
There are several different amplification options available when using the RP21D. You may run mono into an amp or power amp, stereo into  
two amps or a stereo power amp, direct into a mixing console, or a combination of amp(s) and mixing console. The following diagrams  
show the connections for some of these options.  
Mono  
Connect your guitar to the input of the RP21D. Connect the Left Mono output of the RP21D to the instrument input on your amplifier, or to  
the line input of a power amp. Set the Output Mode to mono in the utility menu.  
Left Mono output  
Input  
D
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RP21D User’s Guide  
Section One - Introduction  
Stereo  
For stereo operation connect the guitar to the input of the RP21D. Connect from the RP21D’s Left/Mono output to the input of one amplifier  
or channel of a power amp. Connect from the Right output of the RP21D to a second amplifier, or to a second channel of a power amp.  
Input  
D
Right output  
Right input  
Left Mono output  
Left input  
Stereo 100 Power Amp  
NOTE: The RP21D is a preamp. Running The RP21D signal into the input of a combo guitar amplifier will preamplify the signal again adding  
noise and possibly feedback. When using a guitar amp, it is best to connect the guitar to the input of the RP21D and the output of the RP21D  
to the effect return of the amplifier.  
Direct to a Mixing Console  
The RP21D can be connected directly to the inputs of a house PA system, or to a recording console. Connect the guitar to the input of the  
RP21D, and from the outputs of the RP21D to the channel inputs of the mixing console. Be sure to engage the RP21D’s Cabinet Emulator in  
this application. See page 46 for more on selecting the Cabinet Emulator.  
Input  
D
Right Output  
Left (Mono) Output  
4
4
6
6
4
4
6
6
4
6
4
6
4
6
4
6
4
6
4
4
6
6
2
2
8
8
2
2
8
8
2
2
8
8
2
2
8
8
2
2
8
8
2
2
8
8
2
2
8
8
2
2
8
8
0
0
10  
10  
+5  
0
0
10  
10  
+5  
0
10  
10  
+5  
0
10  
10  
+5  
0
10  
10  
+5  
0
10  
10  
+5  
0
10  
10  
+5  
0
0
10  
10  
+5  
Aux  
1
2
Aux  
1
2
Aux  
1
2
Aux  
1
2
Aux  
1
2
Aux  
1
2
Aux  
1
2
Aux  
1
2
4
6
4
6
4
6
4
6
4
6
0
0
0
0
0
Aux  
0
Aux  
0
Aux  
0
Aux  
0
Aux  
0
Aux  
0
Aux  
0
Aux  
0
-1  
+1  
-1  
+1  
-1  
+1  
-1  
+1  
-1  
+1  
-1  
+1  
-1  
+1  
-1  
+1  
-2  
+2  
-2  
+2  
-2  
+2  
-2  
+2  
-2  
+2  
-2  
+2  
-2  
+2  
-2  
+2  
-3  
-4  
+3 -3  
+3 -3  
+3 -3  
+3 -3  
+3 -3  
+3 -3  
+3 -3  
+3  
+4  
+
4
-
4
+
4
-
4
+
4
-
4
+
4
-
4
+
4
-
4
+
4
-
4
+
4
-
4
-5  
-5  
-5  
-5  
-5  
-5  
-5  
-5  
Pan  
Pan  
Pan  
Pan  
Pan  
Pan  
Pan  
Pan  
Mute  
Mute  
Mute  
Mute  
Mute  
Mute  
Mute  
Mute  
L
/
R
L
/
R
L
/
R
L
/
R
L
/
R
L
/
R
L
/
R
L
/
R
+10  
+5  
0
+10  
+5  
0
+10  
+5  
0
+10  
+5  
0
+10  
+5  
0
+10  
+5  
0
+10  
+5  
0
+10  
+5  
0
-5  
-5  
-5  
-5  
-5  
-5  
-5  
-5  
-10  
-10  
-10  
-10  
-10  
-10  
-10  
-10  
-20  
-20  
-20  
-20  
-20  
-20  
-20  
-20  
-30  
-30  
-30  
-30  
-30  
-30  
-30  
-30  
-°  
-°  
-°  
-°  
-°  
-°  
-°  
-°  
1
2
3
4
5
6
7
8
Digital Output  
The RP21D includes a digital S/PDIF output enabling you to eliminate multiple analog to digital, and digital to analog conversions when  
recording digitally. Simply connect from the S/PDIF output of the RP21D to the S/PDIF input on your digital mixer or recorder. The RP21D  
will deliver a digital signal to your digital mixer or recorder. You must have S/PDIF inputs on the receiving device in order to use this output.  
You may use the analog and digital outputs of the RP21D simultaneously.  
ATTENTION: Do not connect this output to analog auxilary, CD, phono, or tape inputs on consumer electronic devices. It is not compatible  
with these inputs.  
6
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RP21D User’s Guide  
Section One - Introduction  
Powering the RP21D  
Once the audio connections have been made, connect the 4 pin connector of the power adapter to the power jack on the back of the RP21D  
and the other end to an AC outlet. Begin to play your guitar while adjusting the Input Level on the back panel of the RP21D. The Input Level  
should be adjusted so the clip LED lights occasionally on the strongest peaks of your signal.  
At this point, turn the Output Level of the RP21D all the way down (counterclockwise). Then turn the power to your amplifier(s) on. Set the  
amp(s) to a clean setting and set the tone controls to a flat EQ response (on most amps, this would be 0 or 5 on the tone controls). Turn  
the Output Level of the RP21D up to achieve the desired volume level.  
About the RP21D  
Program Mode  
When you first apply power to the RP21D, it will power up in Program mode. Program mode is indicated when the Program button is lit and  
is the mode used while you are performing. Using the footswitches while in Program mode allows you to access different Programs, turn  
effects on and off, access the tuner, bypass all effects, change banks, or adjust the values of any parameters assigned to the expression pedal.  
Rotating the Data Wheel selects Programs in the Program mode.  
The Display  
Understanding what the RP21D’s display is telling you is crucial to getting the most out of what the RP21D has to offer. There are several  
different sections to the display, and each section is telling you what the RP21D is currently doing, or listing options to alter the current  
sound.  
B
D
C
%kHz  
msdB  
%kHz  
msdB  
%kHz  
msdB  
%kHz  
msdB  
LINK CHANGED  
LINK CHANGED  
WAH TUBE  
LINK CHANGED  
GATE  
LINK CHANGED  
EQ  
COMP  
L/R OUTS  
E
A
USER  
#
BANK  
PAGE  
b
CLIP  
OF  
H
G
F
A. Factory/User Icon - This section of the display tells you whether you are currently using a factory Program, or a user Program.  
Pressing and holding the Program button for 2 seconds will switch between the factory and user Programs.  
B. Program Number - In Program mode, this section of the display will show the number of the currently selected Program. In tuner  
mode, this section of the display will show the name of the note that you are tuning.  
C. Program Name - This line of the display will show the name of the Program currently active.  
D. Parameter Values - This section of the display will appear when you are editing a Program. Each of the 4 sections represent an effect  
parameter and the value of that parameter. Accessing any of these 4 parameters is done with the 1-4 buttons to the  
right of the display. Once the parameter has been accessed, the value may be adjusted with the Data Wheel.  
E. Speaker Icon - This icon is displayed when the speaker simulator is active in the Program.  
F. Signal Flow - This section of the display shows the order of the effect modules and the configuration being used in the digital section of  
the RP21D. Each box represents a separate effect. A bypassed effect will be indicated by a horizontal line going through  
the effect box.  
G. Input Signal/Tuner - This section of the display will show the strength of the input signal to the Effects section. This section of the  
display also functions as a tuning indicator. While in the tuner mode, the Program number will show the note you  
are tuning, and this line will provide indications as to whether you are sharp, flat, or in tune.  
H. Bank/Page Number - This section of the display will show the Bank number that is currently active when you are in Program mode.  
While in edit mode, this section will show how many pages of parameters are associated with a particular editing  
function, and which page you are currently on.  
7
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RP21D User’s Guide  
Section One - Introduction  
The Programs  
Programs are named and numbered locations of sounds that have been programmed into the RP21D. Programs can be recalled with the  
footswitches or the Data Wheel. The RP21D comes with 128 factory and 128 user Programs available. The factory Programs will not allow  
you to store any changes to them. The user Programs are locations where your creations may be stored. You will notice that the 128 user  
Programs are exact duplicates of the 128 factory Programs. This allows you to make your own Programs without worrying about losing any  
of the sounds that the RP21D came with.  
When you select a Program, the name and number of the Program will be shown in the display. An icon directly beneath the number of the  
Program will indicate whether the Program is a factory Program or a user Program. Depending on whether or not you have changed any  
footswitch assignments, the top row of footswitches may have one or more LEDs lit, indicating the status of the effects assigned to those  
switches.  
The RP21D includes a variety of different Programs. Go ahead and audition several of the Programs. Once you have found some sounds that  
are close to what you are looking for, you can edit those Programs until they are exactly what you want.  
The Footswitches  
The RP21D includes 12 footswitches which can be assigned to perform different functions. The footswitches can call up Programs, turn  
effects on or off within a Program, change banks, bypass the Program, or access the tuner. Other functions can also be performed with the  
footswitches such as setting up a delay time by tapping your foot on a switch in time with the tempo of a song. You can also use the  
footswitches to change a parameter to a specific value.  
From the factory, the footswitches have been set up to call up Programs with the bottom row (switches 1-5), and turn effects on and off with  
the top row (switches 6-0). You may change assignments to any of these ten switches to suit your needs. For more on assigning the  
switches, see page 48. The top and bottom switches on the far right (next to the expression pedal) cannot be reassigned. These switches are  
permanently assigned to advance banks with the top switch, or decrement banks with the bottom switch. The top right switch will also  
bypass the current Program by pressing and holding the switch. The bottom right switch will access the tuner by pressing and holding the  
switch.  
The Expression Pedal  
As you go through the different Programs that came in the RP21D, you will find that the expression pedal has different functions. This pedal  
can be assigned to control any parameter of any effect in the RP21D. Rocking the pedal back and forth will change the value of the  
parameter that the pedal has been assigned to control. You may assign minimum and maximum values (stop points) for each parameter that  
you control with the pedal. For more on assigning the expression pedal, see page 49.  
The Effects  
Creating your own signature sound with the RP21D is easy and intuitive. The RP21D is divided into two sections of effect modules: the analog  
or preamp modules, and the digital effect modules. Each section may be accessed individually for the purpose of modifying the available  
effect modules.  
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RP21D User’s Guide  
Section One - Introduction  
Preamp/Analog Modules  
Access to all of the preamp modules is accomplished by pressing the Preamp button. Once pressed, an effect module in the preamp section  
of the display will begin to flash indicating which module you have accessed. Successive presses of the Preamp button will advance to the  
next module in the preamp section. Each module will have various parameters available for editing. Each parameter will be preceded by a  
highlighted number between 1 and 4. Use of the 1-4 buttons will select the corresponding numbered parameter. There may be more than  
one page of parameters associated with the effect module. This will be indicated by the Next and Previous Page buttons being lit. The bottom  
left corner of the display will show which page you are on, and how many pages are associated with that effect. When you have selected the  
parameter to be edited, rotating the Data Wheel will change the value of the parameter. You will be able to hear your changes in real time.  
Edge of the Earth  
%kHz  
msdB  
%kHz  
%kHz  
 50  
msdB  
60%kHz  70  
1
2
msdB 3  
msdB 4  
100  
LINK CHANGED  
LINK CHANGED  
LINK CHANGED  
LINK CHANGED  
GATE  
WAH  
TUBE  
EQ  
COMP  
L/R OUTS  
100  
USER  
DIST  
BANK  
PAGE  
10  
OF  
11  
Preamp Effect Modules  
Digital Effects Modules  
Access to all of the digital effects modules is accomplished by pressing the Effect button. The first press of the Effect button will take you to  
the configuration menu of the digital section. The RP21D includes 15 different configuration to choose from. Each configuration will change  
the signal routing through the digital effects, the number of effect modules, and the processing power available to each of the effect modules.  
Every time that you change configurations, you will start out with a “blank slate” of digital effect modules. In other words, changing the  
configuration will cause all digital effect modules to default to “thru modules,” meaning that you will have to choose the effect for each  
module. Once you have selected the desired configuration, press the Effects button again and the first module in the selected configuration  
will begin to flash indicating which module you are about to edit. Successive presses of the Effects button will advance to the next module in  
the digital section of the RP21D. After you have selected the module that you wish to edit, use the 1-4 buttons to select the parameter that  
you want to modify. There may be more than one page of parameters associated with the effect module. This will be indicated by the Next  
and Previous Page buttons being lit. The Bank/Page section of the display will show which page you are on, and how many pages are  
available. When you have selected the parameter to be edited, rotate the Data Wheel to change the value of the parameter. You will be able to  
hear your changes in real time.  
Edge of the Earth  
%kHz  
msdB  
%kHz  
%kHz  
 50  
msdB  
60%kHz  70  
1
2
msdB 3  
msdB 4  
100  
LINK CHANGED  
LINK CHANGED  
LINK CHANGED  
LINK CHANGED  
GATE  
WAH  
TUBE  
EQ  
COMP  
L/R OUTS  
100  
USER  
DIST  
BANK  
PAGE  
10  
OF  
11  
Digital Effect Modules  
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RP21D User’s Guide  
Section Two - Editing Functions  
Section Two - Editing Functions  
Selecting a Program  
When creating or editing a sound, you must first start by choosing a Program. The Program number does not necessarily need to be the  
location which you intend to have the sound reside, as you can save your creation to any user Program number during the store process.  
You do have to start with one of the user or factory Programs. It is not possible to start with a completely empty Program. Pick a Program  
which will be your starting point.  
Creating Programs  
The RP21D lets you create your own Programs, or fine tune the original settings to suit your needs. Editing and creating is a very simple  
process that doesn’t require a lot of time dedicated to learning the menus. Once a Program has been edited to your liking, you may store  
those settings to any of the 128 user Programs. Remember that the user Programs are duplicates of the factory Programs so, you are not at  
risk of losing any of the sounds that the RP21D came with.  
Preamp Defaults  
Once you have selected the Program, press the Preamp button once. All of the modules in the Preamp section will begin flashing in the  
display. This is the default page of the Preamp. A default is a way of quickly getting several effects and/or parameters set up without having to  
Program each one individually. It remembers the settings of all of the preamp effect modules and will set all parameters to the values stored  
in the default. There are 30 factory and 30 user preamp defaults in the RP21D. You can choose one of the factory preamp defaults that suits  
your needs, or tailor your basic sound to get a custom preamp tone that you will want to use for several other Programs. You can then store  
your custom default to a user default location. Then when you create a new Program in which you wish to use that same preamp tone, all  
you have to do is select the same default setting. This saves you the time and hassle of reprograming the preamp every time you create a  
Program.  
Editing the Preamp  
Let’s suppose that you are not going to use a default for the preamp, or that you are going to create a custom default setting. This means that  
you will need to edit all the effects in the preamp individually. To access the effects within the preamp, press the preamp button twice. The  
Compressor box will begin to flash indicating that you are about to edit the compressor module. Successive presses of the preamp button  
will advance through all of the effect modules in the preamp section. Once you reach the end of the preamp modules, the RP21D will “loop  
around” and start at the beginning again. Every module will have parameters associated with that effect available for editing. These  
parameters will be shown in the 1-4 positions of the display. To adjust any of these parameters, press any of the 1-4 buttons and an arrow  
will appear next to the corresponding parameter. Rotate the Data Wheel to change the value of that parameter.  
When the preamp has been edited to suit your requirements, you may store the settings to a user default for use in other Programs, or move  
on to editing your digital effects within the current Program.  
The Preamp Effects  
The preamp contains a total of 7 different effects. The effects were laid out in the most logical and best sounding order and cannot be  
changed. The guitar signal can go through any or all of the modules. The first effect that your guitar goes through is the compressor. The  
output of the compressor is then fed to the Wah. After the Wah effect, the signal can be split and run through two discrete Distortion paths.  
Each Distortion path has a dedicated Equalizer. The expression pedal can be assigned to morph between the two Distortion paths (see page  
50 for more information on morphing). The outputs of the Equalizers are sent into a Noise Gate which is the end of the Preamp effect  
modules. Each effect in the preamp (except for the Wah) includes a default menu exclusive to that effect.  
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RP21D User’s Guide  
Section Two - Editing Functions  
Compressor  
Compression is a tool that sets boundaries for the strength of your guitars signal. A bi-product of containing a signal within these boundaries  
is long lasting sustain, as well as a tight, smooth texture. Selecting the Compressor is done by pressing the Preamp button until the  
Compressor module is flashing in the display. The display will look something like this:  
1
2
Compressor         Heavy  
msdB  
%kHz  
msdB  
%kHz  
%kHz  
msdB  
On%kHz  
 F  5  
1
2
msdB 4  
LINK CHANGED  
LINK CHANGED  
TUBE  
LINK  
LINK  
COMP  
WAH  
EQ  
EQ  
GATE  
4
DIST  
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
b
L/R OUTS  
PAGE  
 1  
OF 3  
3
The display will show three things about the Compressor.  
1. This is showing that the type of effect you are about to edit is a Compressor, and that the effect is on. The number 1 icon before the word  
“on” indicates that in order to access the on/off parameter, you need to press the number 1 button. The status can then be changed by  
rotating the Data Wheel.  
2. This is the default setting for the Compressor. The Compressor default shown here is factory default 5 (F5)which is a heavy Compression  
setting. The number 4 which precedes the F5 value, indicates that in order to access the default parameter, you must press the number 4  
button. The default can then be changed by rotating the Data Wheel. See page 22 for a complete list of defaults.  
3. The bottom corner of the display is showing that there are 3 pages of parameters associated with the Compressor, and that you are on the  
first of these three pages. The next and previous page button can be used to access the other pages of parameters associated with the  
Compressor.  
When you access page two of the compression parameters, the display will look something like this:  
1
2
3
ThreshRatio AttackMedium         
%kHz  
%kHz  
%kHz  
%kHz  
  msdB  
1
2
sdB 3  
msdB 4  
msdB2  
-14  
9.0m  
TUBE  
0
 2  
LINK CHANGED  
LINK CHANGED  
LINK  
LINK  
COMP  
WAH  
EQ  
GATE  
4
DIST  
EQ  
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
b
L/R OUTS  
PAGE  
 2  
OF 3  
4
The display it now telling you four more things about the Compressor parameters  
1. This is the Compressors Threshold parameter. The Threshold is the strength the incoming signal must be before the compression will  
start. A signal above this level will be compressed, a signal below this level will not. The number 1 icon is telling you that in order to  
access the Threshold parameter, you must press the number 1 button. Then you can adjust the Threshold value by rotating the Data  
Wheel.  
2. This is the Compressors Ratio parameter. The Ratio is the amount of compression that will be applied to the signal once the Threshold  
has been exceeded. In the display shown above, the Ratio is 9 to 1 (the 1 is implied). A Ratio of 9 to 1 means that for every 9 dB of  
incoming signal, there will only be a 1 dB increase in output. The number 2 icon is telling you that in order to access the Ratio parameter,  
you must press the number 2 button. Then you can adjust the Ratio value by rotating the Data Wheel.  
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RP21D User’s Guide  
Section Two - Editing Functions  
3. This is the Compressors Attack Time parameter. The Attack Time parameter adjusts the length of time that it takes the compressor to  
reach the full Ratio once the Threshold has been exceeded. The number 3 icon is telling you that in order to access the Attack Time  
parameter, you must press the number 3 button. Then you can adjust the Attack Time value by rotating the Data Wheel.  
4. This section of the display is telling you that there are three pages of Compression parameters, and that you are currently on the second  
page. Pressing the Next Page button will advance you to the third page of Compression parameters.  
Once you access the third page of Compression parameters the display will look something like this:  
1
Level  
1
%kHz  
15.ms0dB  
%kHz  
msdB  
2
LINK CHANGED  
LINK CHANGED  
LINK  
LINK  
COMP  
WAH  
TUBE  
EQ  
EQ  
GATE  
4
DIST  
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
b
L/R OUTS  
PAGE  
 3  
OF 3  
2
There are now two things that the display is telling you:  
1. This is the Compressors Output Level parameter. Since there are no other parameters on this page, you do not need to press any buttons  
to access the parameter. The number 1 button will default as the selected parameter. You can use the Data Wheel to adjust the Compressors  
Output Level.  
2. This section of the display is telling you that you are on page 3 of 3. There are no more pages of parameters to display. Pressing the Next  
Page button will wrap around to page 1 of 3.  
If you made any changes to the Compressor’s parameters, you can save your changes to a user default for the Compressor. This will allow  
you to quickly recall all of these Compression settings when creating another Program just by choosing the user default. To save your  
Compression settings to a user default, you will have to return to page 1 of 3, and the display will look something like this:  
1
Compressor        Custom  
msdB  
%kHz  
%kHz  
Sto  
%kHz  
sdB  
On%kHz  
 -- -  
1
2
msdB 3  
msdB 4  
LINK CHANGED  
LINK CHANGED  
TUBE  
LINK  
LINK  
COMP  
WAH  
EQ  
EQ  
GATE  
4
DIST  
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
b
L/R OUTS  
PAGE  
 1  
OF 3  
The number 3 icon is telling you that in order to store your Compressor settings to a default, you must press the number 3 button. Once you  
press the number 3 button, the RP21D will take you into a naming menu to give your compressor default setting a custom name. See page  
21 for more information on naming functions.  
NOTE: The Store option for saving a Compressor default will not appear if you did not make any changes to the compressors parameters.  
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RP21D User’s Guide  
Section Two - Editing Functions  
Wah Wah  
The RP21D includes an analog Wah effect which can be assigned to the expression pedal and controlled just like a stand alone Wah pedal.  
You access the Wah by pressing the Preamp button until the Wah module in the display is flashing. With the Wah module flashing, the display  
will look something like this:  
1
2
3
Wah  Pedal     Toe Heavy    
%kHz  
msdB  
%kHz  
msdB 4  
%kHz  
  1  msdB  
On%kHz  
msd  
 
 8  
2
1
LINK CHANGED  
LINK CHANGED  
LINK  
LINK  
COMP  
WAH  
TUBE  
DIST  
EQ  
EQ  
GATE  
4
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
b
L/R OUTS  
PAGE  
 1  
OF 1  
4
The display is now telling you 4 things about the Wah effect:  
1. This is the Wah on/off parameter. The number 1 icon is telling you that in order to access the on/off parameter, you must press the  
number 1 button. Then you can turn the Wah effect on or off by rotating the Data Wheel.  
2. This is the Wah Pedal Position parameter. The number 2 icon is telling you that in order to access the Pedal Position parameter, you must  
press the number 2 button. Then you can assign the wah effect to the Expression Pedal by pressing Assign once, and rocking the Pedal  
back and forth once.  
3. This parameter is the Wah Type. The number 4 icon is telling you that in order to access the Wah curve response, you must press the  
number 4 button. Then you can select the different curves of Wah by rotating the Data Wheel.  
4. This section of the display is telling you that there is only one page of Wah parameters. Pressing the Next Page button will have no affect.  
Tube Distortion  
The RP21D contains a real 12AX7 tube capable of creating a wide variety of clean and distorted tones. The flexibility of the distortions  
created by the tube are entirely up to you, and the way you set the distortion up. To access the Tube Distortion module, press the Preamp  
button until the Tube module is flashing. The display will look something like this:  
1
2
Tube Distort     Dirty 1     
msdB  
%kHz  
msdB  
%kHz  
%kHz  
msdB  
On%kHz  
 F  7  
1
2
msdB 4  
LINK CHANGED  
LINK CHANGED  
TUBE  
LINK  
LINK  
COMP  
WAH  
EQ  
EQ  
GATE  
4
DIST  
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
b
L/R OUTS  
PAGE  
 1  
OF 2  
3
The display is now telling you three things about the Tube Distortion parameters:  
1. This is showing that the type of effect you are about to edit is Tube Distortion, and that the effect is on. The number 1 icon before the  
word “on” indicates that in order to access the on/off parameter, you must press the number 1 button. The status can then be changed by  
rotating the Data Wheel.  
2. This is the default setting for the Tube Distortion. The Tube Distortion default shown here is factory default 7 (F7)which is a Dirty  
Distortion setting. The number 4 icon which precedes the F7 value, indicates that in order to access the default parameter, you must press  
the number 4 button. The default can then be changed by rotating the Data Wheel. See page 22 for a complete list of defaults  
3. The bottom corner of the display is showing that there are 2 pages of parameters associated with the Tube Distortion, and that you are on  
the first of these two pages. The Next or Previous Page buttons can be used to access page 2 of the Tube Distortion parameters.  
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Section Two - Editing Functions  
Once you have accessed page 2 of the Tube Distortion, the display will look something like this:  
1
2
Type: Dirty Tube   Gain     
%kHz  
msdB  
%kHz  
msdB  
%kHz  
%kHz  
 45  msdB  
1
32  
msdB 4  
   3  
TUBE  
LINK CHANGED  
LINK CHANGED  
LINK  
LINK  
COMP  
WAH  
EQ  
EQ  
GATE  
4
DIST  
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
b
L/R OUTS  
PAGE  
 2  
OF 2  
3
The display it now telling you three more things about the Tube Distortion parameters.  
1. This parameter is the Tube Distortion Type. There are four types of Tube Distortion to choose from including Warm Clean, Bright Clean,  
Dirty Tube, and Saturated Tube. The number 2 icon is telling you that in order to access the Tube Distortion Type, you must press the  
number 2 button. You can then select the Type of Tube Distortion by rotating the Data Wheel.  
2. This is the Tube Distortion Gain parameter. The Gain is the amount of distorion and is adjustable from 0 to 100. The number 4 icon is  
telling you that in order to access the Gain parameter, you must press the number 4 button. You can then change the Tube Distortion Gain  
value by rotating the Data Wheel.  
3. This section of the display is telling you that you are on page 2 of 2. There are no more pages of parameters to display. Pressing the Next  
Page button will wrap around to page 1 of 2.  
Saving a Distortion Default  
If you made any changes to the Tube Distortion parameters, you can save your changes to a user default for the Tube Distortion. This will  
allow you to quickly recall all of these Distortion settings when creating another Program just by choosing the user default. To save your  
Tube Distortion settings to a user default, you will have to return to page 1 of 2, and the display will look something like this:  
1
Tube Distort      Custom  
msdB  
%kHz  
%kHz  
Sto  
%kHz  
sdB  
On%kHz  
 -- -  
1
2
msdB 3  
msdB 4  
LINK CHANGED  
LINK CHANGED  
TUBE  
LINK  
LINK  
COMP  
WAH  
EQ  
EQ  
GATE  
4
DIST  
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
b
L/R OUTS  
PAGE  
 1  
OF 2  
The number 3 icon is telling you that in order to store your Tube Distortion settings to a default, you must press the number 3 button. Once  
you press the number 3 button, the RP21D will take you into a naming menu to give your Tube Distortion default setting a custom name. See  
page 21 for more information on naming functions.  
NOTE: The Store option for saving a Tube Distortion default will not appear if you did not make any changes to the Tube Distortion  
parameters.  
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RP21D User’s Guide  
Section Two - Editing Functions  
Solid State Distortion  
In addition to the Tube Distortion, the RP21D also includes a solid state Distortion. Both the tube and solid state Distortions may be run  
simultaneously or separately. Each Distortion has a separate 10 band Equalizer. To access the solid state Distortion module, press the  
Preamp button until the Dist module is flashing. The display will look something like this:  
1
2
Distort       
 Low Fuzz     
%kHz  
msdB  
%kHz  
%kHz  
On%kHz  
msdB  
 
4
 msdB  
1
2
msdB 4  
 F  
LINK  
LINK CHANGED  
LINK CHANGED  
TUBE  
LINK  
COMP  
WAH  
EQ  
EQ  
GATE  
4
DIST  
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
b
L/R OUTS  
PAGE  
 1  
OF 2  
3
The display is now telling you three things about the Distortion parameters:  
1. This is showing that the type of effect you are about to edit is Distortion, and that the effect is on. The number 1 icon before the word  
“on” indicates that in order to access the on/off parameter, you must press the number 1 button. The status can then be changed by  
rotating the Data Wheel.  
2. This is the default setting for the Distortion. The Distortion default shown here is factory default 4 (F4)which is a Low Fuzz Distortion  
setting. The number 4 icon which precedes the F4 value, indicates that in order to access the default parameter, you must press the  
number 4 button. The default can then be changed by rotating the Data Wheel. See page 22 for a complete list of defaults.  
3. The bottom corner of the display is showing that there are 2 pages of parameters associated with the Distortion, and that you are on the  
first of these two pages. The Next or Previous Page buttons can be used to access page 2 of the Distortion parameters.  
Once you have accessed page 2 of the Distortion, the display will look something like this:  
1
2
Type: Fuzz     
Gain     
%kHz  
msdB  
%kHz  
%kHz  
%kHz  
1
32  
msdB 4  
 15    
LINK  
msdB  
msdB  
   2  
TUBE  
LINK CHANGED  
LINK CHANGED  
LINK  
COMP  
WAH  
EQ  
EQ  
GATE  
4
DIST  
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
b
L/R OUTS  
PAGE  
 2  
OF 2  
3
The display it now telling you three more things about the Tube Distortion parameters.  
1. This parameter is the Distortion Type. There are four types of Distortion including Grunge, Fuzz,Overdrive, and Heavy Sustain. The number  
2 icon is telling you that in order to access the Distortion Type, you must press the number 2 button. You can then select the Type of  
Distortion by rotating the Data Wheel.  
2. This is the Distortion Gain parameter. The Gain is the amount of distortion and is adjustable from 0 to 100. The number 4 icon is telling  
you that in order to access the Gain parameter, you must press the number 4 button. You can then change the Distortion Gain value by  
rotating the Data Wheel.  
3. This section of the display is telling you that you are on page 2 of 2. There are no more pages of parameters to display. Pressing the Next  
Page button will wrap around to page 1 of 2.  
If you made any changes to the Distortion parameters, you can save your changes to a user default for the Distortion. This will allow you to  
quickly recall all of these Distortion settings when creating another Program just by choosing the user default. See the previous section for  
instructions on saving a Distortion default .  
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RP21D User’s Guide  
Section Two - Editing Functions  
10 Band Graphic Equalizer  
The RP21D includes two 10 band Graphic Equalizers in the preamp section, one for each of the distortion paths. To access either one of the  
Graphic Equalizer modules, press the Preamp button until the desired EQ module is flashing. The display will look something like this:  
1
2
Tube GEQ 10        Punch  
msdB  
%kHz  
msdB  
%kHz  
%kHz  
msdB  
On%kHz  
 F1 0  
1
2
msdB 4  
LINK CHANGED  
LINK CHANGED  
TUBE  
LINK  
LINK  
COMP  
WAH  
EQ  
EQ  
GATE  
4
DIST  
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
b
L/R OUTS  
PAGE  
 1  
OF 5  
3
The display is now telling you three things about the Graphic EQ module:  
1. This is showing that the type of effect you are about to edit is the 10 Band Graphic EQ, and that the effect is on. The number 1 icon before  
the word “on” indicates that in order to access the on/off parameter, you must press the number 1 button. The status can then be  
changed by rotating the Data Wheel.  
2. This is the default setting for the Graphic EQ. The default shown here is factory default 10 (F10)which is a Punch setting. The number 4  
icon which precedes the F10 value, indicates that in order to access the default parameter, you must press the number 4 button. The  
default can then be changed by rotating the Data Wheel.See page 22 for a complete list of defaults.  
3. The bottom corner of the display is showing that there are 5 pages of parameters associated with the Graphic EQ, and that you are on the  
first of these five pages. The Next button can be used to access page 2 of the Graphic EQ parameters.  
Once you have accessed page 2 of the Graphic EQ, the display will look something like this:  
1
2
Level  
1
Phase   
3
%kHz  
  msdB  
%kHz  
2
4
100  
  In  
msdB  
LINK CHANGED  
LINK CHANGED  
LINK  
LINK  
COMP  
WAH  
TUBE  
EQ  
EQ  
GATE  
4
DIST  
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
b
OF 5  
 2  
L/R OUTS  
PAGE  
3
The display it now telling you three more things about the Graphic EQ parameters.  
1. This parameter is the volume Level of the Graphic EQ. The number 1 icon is telling you that in order to access the Graphic EQ Level, you  
must press the number 1 button. You can then adjust the Level by rotating the Data Wheel.  
2. This is the Phase parameter of the Graphic EQ. The phase options are in phase and 180 degrees out of phase. The number 3 icon is  
telling you that in order to access the Phase parameter, you must press the number 3 button. You can then change the Phase by rotating  
the Data Wheel.  
3. This section of the display is telling you that there are 5 pages of EQ parameters, and that you are currently on the second page. Pressing  
the Next Page button will advance you to the third page of EQ parameters.  
Pages 3, 4, and 5 of the Graphic EQ are all similar, each displaying the center frequencies available. Pages 3, 4, and 5 will look something  
like this:  
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Section Two - Editing Functions  
80Hz  
1
140Hz 250Hz 450Hz  
%kHz  
%kHz  
%%kHkzHz  
%%kkHHzz  
mmssddBB  
2
3
mmsdsBdB 4  
  2   1  
LINK  
 0  
msdB  
LINK CHANGED  
msdB  
    
  3  
LINK CHANGED  
LINK  
COMP  
WAH  
TUBE  
EQ  
EQ  
GATE  
4
DIST  
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
b
OF 5  
 3  
L/R OUTS  
PAGE  
As in all other editing functions, the display is telling you that each parameter shown is accessable by using the 1-4 buttons which will select  
the frequency corresponding to the 1-4 icons in the display. Once the frequency has been selected, rotating the Data Wheel will boost or cut  
the gain applied to that frequency. The 10 Band Graphic EQ on the RP21D can be compared to having 10 tone knobs on an amplifer. Each  
one adjusts a specific segment of the spectrum of frequencies that a guitar generates. The following list outlines the tonal range that each  
frequency represents.  
Low Bass Frequency  
Mid Bass Frequency  
High Bass Frequency  
Low Mid Range Frequency  
Mid Range Frequency  
80 Hz  
High Mid Range Frequency  
Low Treble Frequency  
Mid Treble Frequency  
High Treble Frequency  
Highest Treble Frequency  
1.5 kHz  
2.5 kHz  
4.5 kHz  
8 kHz  
140 Hz  
250 Hz  
450 Hz  
800 Hz  
15 kHz  
If you made any changes to the Graphic EQ parameters, you can save your changes to a user default for the Graphic EQ. This will allow you  
to quickly recall all of these Equalizer settings when creating another Program just by choosing the user default. To save your Graphic EQ  
settings to a user default, you will have to return to page 1 of 5, and the display will look something like this:  
1
Tube GEQ 10      Custom  
msdB  
%kHz  
%kHz  
Sto  
%kHz  
sdB  
On%kHz  
 -- -  
1
2
msdB 3  
msdB 4  
LINK CHANGED  
LINK CHANGED  
TUBE  
LINK  
LINK  
COMP  
WAH  
EQ  
EQ  
GATE  
4
DIST  
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
b
L/R OUTS  
PAGE  
 1  
OF 5  
The number 3 icon is telling you that in order to store your EQ settings to a default, you must press the number 3 button. Once you press the  
number 3 button, the RP21D will take you into a naming menu to give your EQ default setting a custom name. See page 21 for more  
information on naming functions.  
NOTE: The Store option for saving an EQ default will not appear if you did not make any changes to the EQ parameters.  
Noise Gate  
A noise gate is an effect which prevents background noise from being heard while you are not playing. A noise gate has a threshold setting  
which determines the strength or volume of the incoming signal required to open or close the gate. When your signal exceeds the  
threshold, the gate will open allowing sound to be heard. When your signal falls below the threshold, the gate closes allowing nothing to  
come through. The ideal setting for the threshold is to have it open as soon as you strike a string, and close when you stop playing. To  
access the Noise Gate parameters, press the Preamp button until the Gate box is flashing. The display will look something like this:  
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Section Two - Editing Functions  
1
2
Noise Gate    LoThresh  
%kHz  
msdB  
%kHz  
On%kHz  
msdB  
 
1%kHz  
 
msdB  
1
2
msdB 4  
F  
LINK  
LINK CHANGED  
LINK CHANGED  
TUBE  
LINK  
COMP  
WAH  
EQ  
EQ  
GATE  
4
DIST  
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
b
L/R OUTS  
PAGE  
 1  
OF 3  
3
The Display is now telling you three things about the Noise Gate  
1. This is showing that the type of effect you are about to edit is the Noise Gate, and that the effect is on. The number 1 icon before the word  
“on” indicates that in order to access the on/off parameter, you must press the number 1 button. The status can then be changed by  
rotating the Data Wheel.  
2. This is the default setting for the Noise Gate. The Noise Gate default shown here is factory default 1 (F1)which is a Low Threshold setting.  
The number 4 icon which precedes the F1 value, indicates that in order to access the default parameter, you must press the number 4  
button. The default can then be changed by rotating the Data Wheel. See page 22 for a complete list of defaults.  
3. The bottom corner of the display is showing that there are 3 pages of parameters associated with the Noise Gate, and that you are on the  
first of these three pages. The Next Page button can be used to access page 2 of the Noise Gate parameters.  
Once you have accessed page 2 of the Noise Gate, the display will look something like this:  
1
Type:Silencer2  Post T&D  
%kHz  
%kHz  
 2%kHz  
msdB  
1
sd  
t
 
3%kHz  
 
msdB  
3
1
2
B 4  
  4msdB S  m o     
LINK  
LINK CHANGED  
LINK CHANGED  
TUBE  
LINK  
COMP  
WAH  
EQ  
EQ  
GATE  
4
DIST  
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
b
L/R OUTS  
PAGE  
OF 3  
 2  
2
1. This is the type of Noise Gate that you are going to use. You have two choices of Noise Gate types. The different types are basically  
changing the plascement of the Gate in the signal path. Silencer 1 puts the Noise Gate detector at the input of the RP21D before the signal  
enters the Preamp. Silencer 2 places the gate detector at the end of the Preamp after the Preamp modules. Silencer 2 is also more  
sensitive to the signal that is present, and not as likely to shut while you are playing. Press the number one button and rotate the Data  
Wheel to change the type of Gate.  
2. This section of the display is showing that there are 3 pages of parameters associated with the Noise Gate, and that you are on the second  
of these three pages. The Next Page button can be used to access page 3 of the Noise Gate parameters.  
After you have accessed the third page of the Noise Gate parameters, the display will look something like this:  
4
3
1
2
ThreshAtten AttackRelse  
%kHz  
-60msdB  
%kHz  
  4msdB  
%kHz  
m1  
 
3%kHz  
 
msdB  
3
1
2
sdB 4  
    
LINK  
LINK CHANGED  
LINK CHANGED  
TUBE  
LINK  
GATE  
COMP  
WAH  
EQ  
EQ  
4
DIST  
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
b
L/R OUTS  
PAGE  
OF 3  
 3  
5
The display it now telling you five more things about the Noise Gate parameters.  
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Section Two - Editing Functions  
1. This parameter is the Gate Threshold which adjusts the signal strength required to open or close the gate. The number 1 icon is telling  
you that in order to access the GAte Threshold, you must press the number 1 button. You can then adjust the Gate Threshold by rotating  
the Data Wheel.  
2. This is the Attenuation parameter. Attenuation is the amount of cut applied to the signal when the Gate is closed. The number 2 icon is  
telling you that in order to access the Attenuation parameter, you must press the number 2 button. You can then change the Attenuation  
value by rotating the Data Wheel.  
3. This is the Attack parameter. The Attack sets the length of time it takes for the gate to open once the Threshold has been exceeded. The  
number 3 icon is telling you that in order to access the Attack parameter, you must press the number 3 button. You can then change the  
Attack value by rotating the Data Wheel.  
4. This is the Release parameter. The Release is the length of time the gate will remain open after the signal has fallen below the Threshold.  
The number 4 icon is telling you that in order to access the Release parameter, you must press the number 4 button. You can then change  
the Release value by rotating the Data Wheel.  
5. This section of the display is telling you that you are on page 3 of 3. There are no more pages of parameters to display. Pressing the Next  
Page button will wrap around to page 1 of 3.  
If you made any changes to the Noise Gate parameters, you can save your changes to a user default for the Noise Gate. This will allow you to  
quickly recall all of these Noise Gate settings when creating another Program just by choosing the user default. To save your Noise Gate  
settings to a user default, you will have to return to page 1 of 2, and the display will look something like this:  
1
Noise Gate        Custom  
%kHz  
msdB  
%kHz  
Sto  
%kHz  
msdB  
On%kHz  
msdB  
-
1
2
3
msdB 4  
 --    
LINK  
LINK CHANGED  
LINK CHANGED  
TUBE  
LINK  
COMP  
WAH  
EQ  
EQ  
GATE  
4
DIST  
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
b
L/R OUTS  
PAGE  
 1  
OF 2  
The number 3 icon is telling you that in order to store your Noise Gate settings to a default, you must press the number 3 button. Once you  
press the number 3 button, the RP21D will take you into a naming menu to give your Noise Gate default setting a custom name. See page 21  
for more information on naming functions.  
NOTE: The Store option for saving a Noise Gate default will not appear if you did not make any changes to the Noise Gate parameters.  
Master Preamp Settings  
The Preamp includes some master settings that affect the function of the preamp as a whole. These setting include such parameters as  
panning assingments for the Tube and Solid State Distortions, Mix settings, and independent volume levels for the active Distortions,  
bypassed Distortions, DSP Levels, and Master Levels. To access the Master Preamp Settings, press the Preamp button until the entire Preamp  
section is flashing. Then press the Next Page button until you are on page two. The Display looks something like this:  
3
1
2
TUBEPan   DISTPan   Mix      
%kHz  
  0msdB  
%kHz  
0%kHz  100%kHz  
  msdB  
1
2
msdB 3  
msdB 4  
LINK CHANGED  
LINK CHANGED  
TUBE  
LINK  
LINK  
COMP  
WAH  
EQ  
EQ  
GATE  
4
DIST  
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
b
L/R OUTS  
PAGE  
 2  
OF 4  
4
The display it now telling you four more things about the Master Preamp parameters.  
1. This parameter is the Tube Distortion Pan. The pan is the left/right positioning of the Tube distortion. The number 1 icon is telling you  
that in order to access the Tube Distortion Pan, you must press the number 1 button. You can then adjust the Pan of the Tube Distortion  
by rotating the Data Wheel.  
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Section Two - Editing Functions  
2. This parameter is the Distortion Pan. The pan is the left/right positioning of the Distortion. The number 2 icon is telling you that in order  
to access the Distortion Pan, you must press the number 2 button. You can then adjust the Pan of the Distortion by rotating the Data  
Wheel.  
3. This is the Mix parameter. It controls the overall strength of signal being fed into the digital effects from both distortion paths. The  
number 4 icon indicates that in order to access the mix parameter, you must press the number 4 button. The mix parameter can then be  
adjusted by rotating the Data Wheel.  
4. This section of the display is telling you that there are four pages of Preamp parameters, and that you are currently on the second page.  
Pressing the Next Page button will advance you to the third page of Preamp parameters.  
Once you have accessed page 3 of the Preamp, the display will look something like this:  
1
2
3
4
Tube:On  
1
  Lvl DSPLvl Mstr  
2
%kHz  
%kHz  
msdB  
%%kkHHzz  
 80  
%k%HkzHz  
ms  
mdsBdB  
3
mmssddBB 4  
On  
msdB  
LINK CHANGED  
 10 0   
 95  
LINK CHANGED  
LINK  
LINK  
COMP  
WAH  
TUBE  
EQ  
GATE  
4
DIST  
EQ  
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
b
OF 4  
 3  
L/R OUTS  
PAGE  
5
The display it now telling you five more things about the Preamp parameters.  
1. This parameter is telling you that you are editing the parameters of the Tube distortion when it is on. You can also edit the bypassed  
parameters of the Tube distortion. The number 1 icon is telling you that in order to access the status of editable Tube Distortion  
parameters, you must press the number 1 button. You can then select the bypassed Tube Distortion parameters by rotating the Data  
Wheel.  
2. This is the Volume Level of the Tube Distortion. This parameter should be adjusted while watching the bar graph in the bottom of the  
display. Use this parameter to prevent clipping from occuring. The number 2 icon is telling you that in order to access the Volume Level,  
you must press the number 2 button. You can then change the Level value by rotating the Data Wheel.  
3. This is the Volume Level of the Tube Distortion signal being fed into the digital section of the RP21D. Use this parameter to prevent digital  
clipping from occuring. The number 3 icon is telling you that in order to access the Digital Level, you must press the number 3 button.  
You can then change the Digital Level value by rotating the Data Wheel.  
4. This is the combined Master Volume Level of the Program. Should digital clipping occur while using the Digital output, reduce this  
parameter. The number 4 icon is telling you that in order to access the Master Level, you must press the number 4 button. You can then  
change the Master Level value by rotating the Data Wheel.  
5. This section of the display is telling you that there are four pages of Preamp parameters, and that you are currently on the third page.  
Pressing the Next Page button will advance you to the fourth page of Preamp parameters.  
Once you have accessed page 4 of the Preamp parameters, the display will look something like this:  
1
2
3
4
Dist:Byp  
1
  Lvl DSPLvl Mstr  
%kHz  
%kHz  
msdB  
%%kkHHzz  
100  
%k%HkzHz  
ms  
mdsBdB  
2
3
mmssddBB 4  
By  
m
p
sdB  
 10 0   
100  
LINK CHANGED  
LINK CHANGED  
LINK  
LINK  
COMP  
WAH  
TUBE  
DIST  
EQ  
GATE  
4
EQ  
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
b
OF 4  
 4  
L/R OUTS  
PAGE  
5
The display it now telling you five more things about the Preamp parameters.  
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Section Two - Editing Functions  
1. This parameter is telling you that you are editing the parameters of the Distortion when it is bypassed. You can also edit the on parameters  
of the Distortion. The number 1 icon is telling you that in order to access the status of editable Distortion parameters, you must press the  
number 1 button. You can then select the on Distortion parameters by rotating the Data Wheel.  
2. This is the Volume Level of the Distortion. This parameter should be adjusted while watching the bar graph in the bottom of the display.  
Use this parameter to prevent clipping from occuring The number 2 icon is telling you that in order to access the Volume Level, you must  
press the number 2 button. You can then change the Level value by rotating the Data Wheel.  
3. This is the Volume Level of the Distortion signal being fed into the digital section of the RP21D. Use this parameter to prevent digital  
clipping from occuring. The number 3 icon is telling you that in order to access the Digital Level, you must press the number 3 button.  
You can then change the Digital Level value by rotating the Data Wheel.  
4. This is the combined Master Volume Level of the Program. Should digital clipping occur while using the Digital output, reduce this  
parameter. The number 4 icon is telling you that in order to access the Master Level, you must press the number 4 button. You can then  
change the Master Level value by rotating the Data Wheel.  
5. This section of the display is telling you that you are on page 4 of 4. There are no more pages of parameters to display. Pressing the Next  
Page button will wrap around to page 1 of 4.  
Storing a User Preamp Default  
You have now reached the end of the Preamp Effects. You can now save your settings of all the Preamp Effects to a Preamp Default. That way  
you can quickly recall all of these settings in another Program without having to reProgram each individual Preamp Effect.  
To store your preamp settings to a User Default, press the preamp button until the entire preamp section is flashing. The display will look  
something like this:  
1
PreAmp:           Custom  
%kHz  
msdB  
%kHz  
msdB  
%kHz  
%kHz  
msdB  
1
2
3
msdB 4  
Sto  --    
LINK  
-
LINK CHANGED  
LINK CHANGED  
TUBE  
LINK  
COMP  
WAH  
EQ  
EQ  
GATE  
4
DIST  
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
b
L/R OUTS  
PAGE  
 1  
OF 4  
2
The Display is now telling you two things about the Preamp Section.  
1. The number 3 icon is telling you have made changes in the Preamp modules and that in order to store your Preamp settings to a default,  
you must press the number 3 button. Once you press the number 3 button, the RP21D will take you into a naming menu to give your  
Preamp default settings a custom name. See the following section for more information on naming functions.  
2. The bottom corner of the display is showing that there are 4 pages of parameters associated with the Preamp section, and that you are on  
the first of these two pages. The Next Page buttons can be used to access page 2 of the Preamp section.  
Naming a Default  
Every user default can be given a name that you choose. After you have chosen to store a custom default by pressing the number three button  
from the default page, the RP21D will take you into a naming mode. The display will look something like this:  
1
Name:User 1  
1
%kHz  
%kHz  
msdB  
%%kkHHzz  
%k%HkzHz  
ms  
mdsBdB  
2
3
mssddBB 4  
 DemL  In  
LINK  
CA  
m
P
sdB  
 s   
nbr  
LINK CHANGED  
LINK CHANGED  
LINK  
GATE  
COMP  
WAH  
TUBE  
EQ  
4
DIST  
EQ  
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
b
OF 4  
 3  
L/R OUTS  
PAGE  
2
3
4
5
The display is now showing you 5 things that pertain to naming a default.  
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Section Two - Editing Functions  
1. This is the current name of the default. There will be a cursor under one of the characters of the name. This indicates which character  
has been selected. Rotating the Data Wheel will change the character. The next and previous page buttons will move the cursor right or  
left.  
2. The number 1 icon is indicating that pressing the number 1 button will select a letter, change from upper case to lower case, or lower  
case to upper case.  
3. The number 2 icon is indicating that pressing the number 2 button will select a number.  
4. The number 3 icon is indicating that pressing the number 3 button will select the delete function and will delete the characters to the left.  
5. The number 4 icon is indicating that pressing the number 4 button will select insert and shift the characters to the right.  
After your custom default name is showing in the display, press the Store button once. The display will ask which one of the user defaults you  
wish to store the name and settings to. Use the Data Wheel to make your selection. Press the store button again, and  
the Display will ask which of the User Programs you wish to store the settings to. Use the Data Wheel to make your selection. Once you have  
selected the Program number that you want to store the settings to, press the Store button again. Your User Preamp Default has been saved.  
To abort the naming function, press the Program button.  
Default List  
The Following is a list of Factory Preamp Defaults:  
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Digital Effects  
There are literally dozens of digital effects available for you to choose from. The Digital Effects can be placed in any order that you choose,  
and you may even run redundant effects. Up to four Digital Effects can be used simultaneously in the RP21D. The Digital Effects are accessed  
by using the Effects button. The first press of the Effects button will take you to the Configuration page. A configuration determines how the  
signal is routed from module to module, and the processing power allocated to each effect. The processing power of the S-DISC II modules  
is divided into 4th power modules which use 25% of the total processing power available (represented by the number 4), HLF power  
modules which use 50% of the processing power (represented by the number 2), three quarter power modules which use 75% of the  
procesing (represented by the number 3), and FUL power modules which use 100% of the processing power. A full power module is  
capable of much more control and fine tuned adjustments than a quarter power module is. A full power reverb for instance, will sound  
smoother than a quarter power reverb. The configuration will also affect the way that the RP21D responds when morphing between the two  
Preamps. See page 50 for more on how the configuration affects the morphing. The RP21D contains 15 different configurations for you to  
choose from. The following is a list of configurations available.  
Configuration 1  
Configuration 6  
(Split Parallel- 2, 2)  
Configuration 11  
(Parallel - 4, 4, 2)  
(Series -Full)  
L/R OUTS  
L/R OUTS  
L/R OUTS  
L/R OUTS  
L/R OUTS  
Configuration 2  
(Series - 3, 4)  
Configuration 7  
(Series - 4, 4, 2)  
Configuration 12  
(Parallel/Split - 4, 4, 2)  
L/R OUTS  
L/R OUTS  
L/R OUTS  
L/R OUTS  
Configuration 3  
(Series - 4, 3)  
L/R OUTS  
Configuration 8  
(Series - 2, 4, 4)  
L/R OUTS  
Configuration 13  
(Series - 4, 4, 4, 4)  
L/R OUTS  
L/R OUTS  
Configuration 4  
Configuration 9  
Configuration 14  
(Series - 2, 2)  
(Series - 4, 2, 4)  
(Parallel - 4, 4, 4, 4)  
L/R OUTS  
L/R OUTS  
L/R OUTS  
L/R OUTS  
Configuration 5  
(Parallel - 2, 2)  
Configuration 10  
(Parallel - 4, 4, 2)  
Configuration 15  
(Parallel/Split - 4, 4, 4, 4)  
L/R OUTS  
L/R OUTS  
L/R OUTS  
L/R OUTS  
When you access the configuration page, you can rotate the Data Wheel to select one of the 15 configurations. Once you have selected the  
desired configuration, press the Effects button again to access and edit the Digital Effects. The first box in the configuration will begin to flash  
indicating that this is the module you are about to edit. The display may look something like this:  
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RP21D User’s Guide  
Section Two - Editing Functions  
1
2
3
FX:Thru Module    Center  
msdB  
%kHz  
msdB  
%kHz  
%kHz  
msdB  
On%kHz  
 F  1  
1
2
msdB 4  
2
4th  
LINK CHANGED  
LINK CHANGED  
TUBE  
LINK  
LINK  
COMP  
WAH  
EQ  
EQ  
GATE  
4
DIST  
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
b
L/R OUTS  
PAGE  
 1  
OF 1  
4
The display is now telling you four things about the digital effect.  
1. The effect module is on. The number 1 icon is indicating that you need to press the number 1 button in order to change the status of the  
effect.  
2. The current effect is a Thru module (just passes dry signal) and it is using one fourth of the processing power available. The number two  
icon is indicating that you must press the number two button to access the type of effect. You can then rotate the Data Wheel to select any  
of the quarter power effects. The processing power allocated to the effects can only be changed by selecting a different configuration.  
3. The pan position of the Thru module is in the center. The number four icon is indicating that you must press the number four button to  
access the pan parameter. You can then use the Data Wheel to change the pan position.  
4. This is the only page of parameters associated with the Thru module.  
Changing Effects  
When you change the configuration on a Program, all modules in the new configuration will automatically default as thru modules. This  
means that you will not have any digital effects processing until you select the type of effects that you want to use. Choosing the type of effect  
is accomplished by pressing the number 2 button and rotating the Data Wheel until the desired type of effect is shown above the number two  
icon. Then you can edit the parameters associated with the effect to suit your application. Let’s suppose that you wanted a chorus as the first  
effect in your digital chain. From the screen shown previously, you would press the number two button, and rotate the Data Wheel until the  
display showed Chorus above the number 2 icon. The display would look something like this:  
1
2
3
FX: Dual Cho      Medium  
msdB  
%kHz  
msdB  
%kHz  
%kHz  
msdB  
On%kHz  
 F  1  
1
2
msdB 4  
2
4th  
LINK CHANGED  
LINK CHANGED  
TUBE  
LINK  
LINK  
COMP  
WAH  
EQ  
EQ  
GATE  
4
DIST  
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
b
L/R OUTS  
PAGE  
 1  
OF 5  
4
The Display is now telling you four things about the Chorus Effect.  
1. The Effect is on. The number one icon is indicating that you must press the number one button to access the on/off parameter. You can  
then rotate the Data Wheel to change the status of the Chorus Effect.  
2. The type of effect currently active is a Chorus. The number two icon is indicating that you must press the number 2 button to access the  
type of effect. You can then rotate the Data Wheel to select a different type of effect.  
3. The default setting for the Chorus is Factory default 1 (F1) which is a medium chorus setting. The number four icon is indicating that you  
must press the number four button in order to access the default parameter. You can then rotate the Data Wheel to select a different default.  
4. There are 5 pages of parameters associated with the Chorus, and you are currently on the first page. Pressing the Next Page button will  
advance to the second page.  
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Section Two - Editing Functions  
Once the second page of parameters has been accessed, the display will look something like this:  
1
2
3
FX:Lvl   Dry:Lvl Balance  
msdB  
%kHz  
%kHz  
100  
%kHz  
  0  msdB  
50%kHz  
1
2
msdB 3  
msdB 4  
2
LINK CHANGED  
LINK CHANGED  
TUBE  
LINK  
LINK  
COMP  
WAH  
EQ  
EQ  
GATE  
4
DIST  
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
b
L/R OUTS  
PAGE  
 2  
OF 5  
4
The display is now telling you four more things about the Chorus parameters.  
1. This is the input level of the Chorus effect. The number one icon is indicating that you must press the number one button to access the  
effect level parameter. You can then rotate the Data Wheel to change the value of the effect level.  
2. This is the level of the Dry signal being mixed in with the Chorus effect. The number three icon is indicating that you must press the  
number three button to access the Dry level parameter. You can then rotate the Data Wheel to change the value of the Dry level.  
3. This is the left/right Balance parameter of the Chorus effect. The number four icon is indicating that you must press the number four  
button to access the Balance parameter. You can then rotate the Data Wheel to change the value of the Balance.  
4. There are 5 pages of parameters associated with the Chorus, and you are currently on the second page. Pressing the Next Page button will  
advance to the third page.  
Once the third page of parameters has been accessed, the display will look something like this:  
1
2
3
Speed Depth       WvFrm  
%kHz  
%kHz  
msdB  
%kHz  
o
0.3  
m
0
sdB  
  4.0  
 
n%kHz  
 
msdB  
1
2
3
sdB 4  
100m Si  
LINK  
2
LINK CHANGED  
LINK CHANGED  
LINK  
GATE  
COMP  
WAH  
TUBE  
EQ  
EQ  
4
DIST  
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
 3  
OF 5  
b
L/R OUTS  
PAGE  
4
The display is now telling you four more things about the Chorus parameters.  
1. This is the Speed of the Chorus effect. The number one icon is indicating that you must press the number one button to access the Speed  
parameter. You can then rotate the Data Wheel to change the value of the Speed.  
2. This is the Depth of the Chorus effect. The number two icon is indicating that you must press the number two button to access the Depth  
parameter. You can then rotate the Data Wheel to change the value of the Depth.  
3. This is the Wave Form parameter of the Chorus effect. The number four icon is indicating that you must press the number four button to  
access the Wave Form parameter. You can then rotate the Data Wheel to select a different Wave Form.  
4. There are 5 pages of parameters associated with the Chorus, and you are currently on the third page. Pressing the Next Page button will  
advance to the fourth page.  
Once the fourth page of parameters has been accessed, the display will look something like this:  
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Section Two - Editing Functions  
1
2
DlyA        DlyB Balance  
msdB  
%kHz  
%kHz  
100  
%kHz  
  0  msdB  
50%kHz  
1
2
msdB 3  
msdB 4  
2
LINK CHANGED  
LINK CHANGED  
TUBE  
LINK  
LINK  
COMP  
WAH  
EQ  
EQ  
GATE  
4
DIST  
FACTORY  
BANK  
 USER  
SEAMLESS  
DIGITAL  
#
CLIP  
b
L/R OUTS  
PAGE  
 4  
OF 5  
3
The display is now telling you three more things about the Chorus parameters.  
1. The Dual Chorus has two delay circuits. This is the delay time of the first delay in the Chorus effect. The number one icon is indicating that  
you must press the number one button to access the Delay A parameter. You can then rotate the Data Wheel to change the Delay time of  
the first Delay.  
2. This is the delay time of the second delay in the Chorus effect. The number three icon is indicating that you must press the number three  
button to access the Delay B parameter. You can then rotate the Data Wheel to change the Delay time of the second Delay.  
4. There are 5 pages of parameters associated with the Chorus, and you are currently on the fourth page. Pressing the Next Page button will  
advance to the fifth page.  
Once the fifth page of parameters has been accessed, the display will look something like this:  
4
1
2
3
OutA  PanA  OutB  PanB  
%kHz  
%kHz  
100msdB  
%kHz  
L99  
%kHz  
100  
1
2
msdB 3  
msdB 4  
2
r99    
msdB  
LINK CHANGED  
LINK CHANGED  
LINK  
LINK  
COMP  
WAH  
TUBE  
EQ  
GATE  
4
DIST  
EQ  
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
b
L/R OUTS  
PAGE  
 5  
OF 5  
5
The display is now telling you five more things about the Chorus parameters.  
1. This is the Output Level of the first Chorus circuit in the Dual Chorus effect. The number one icon is indicating that you must press the  
number one button to access the Output Level A parameter. You can then rotate the Data Wheel to change the Output Level of the first  
Chorus circuit.  
2. This is the Pan position of the first Chorus circuit in the Dual Chorus effect. The number two icon is indicating that you must press the  
number two button to access the Pan A parameter. You can then rotate the Data Wheel to change the Pan position of the first Chorus  
circuit.  
3. This is the Output Level of the second Chorus circuit in the Dual Chorus effect. The number three icon is indicating that you must press  
the number three button to access the Output Level B parameter. You can then rotate the Data Wheel to change the Output Level of the  
second Chorus circuit.  
4. This is the Pan position of the second Chorus circuit in the Dual Chorus effect. The number four icon is indicating that you must press the  
number four button to access the Pan B parameter. You can then rotate the Data Wheel to change the Pan position of the second Chorus  
circuit.  
5. There are 5 pages of parameters associated with the Chorus, and you are currently on the fifth page. There are no more parameters  
associated with the Chorus effect. Pressing the Next Page button will return to the first page.  
Like the Preamp effects, every Digital effect includes user defaults which can hold your favorite settings for quick recall. The procedure for  
storing defaults to the Digital effects is the same as for the Preamp effects defaults. See page 21 for more information on storing a default to  
an effect.  
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Section Two - Editing Functions  
Effect Types  
Pressing the Effects button will advance you to the next module in the Digital Effect chain. The procedure for editing each module will be  
the same as the procedure previously described with the chorus. The only exception being that different effects will have different  
parameters, and some may have a different number of pages. The following is a list of the types of effects available with the RP21D, and a  
definition of the parameters.  
Choruses and Flangers  
Both choruses and flangers use a Low Frequency Oscillator (LFO) to produce their rich, swirling effects. When you change the speed and  
depth Parameters of modulation effects, you're actually controlling the frequency and amplitude of the LFO. These settings determine the rate  
and intensity of the modulation effect.  
In general, here's how a chorus works: after entering the Module, the source signal is split into two paths. One is allowed to pass through  
the Module unaltered, while the other is delayed and pitch modulated with an LFO. The modified sound is then sent to the output, along  
with the original. In the following figure, a sine wave is used to modulate the pitch of the split sound source. The Dual Chorus creates two  
different pitch “voices”, while the Octal Chorus creates eight voices for extremely full, rich sounds.  
1 sec  
2 sec  
3 sec  
Modulated Sound  
Original Sound  
T I M E  
The only difference between choruses and flangers is that flangers use less delay and have a feedback Parameter that sends a portion of the  
effected signal back to the input of the selected module. When the effected signal reaches the input, it is sent through the Module again,  
building thickness and depth. If you increase the feedback enough, the source begins to lose its own original pitch to the dramatic pitch  
modulation of the feedback loop.  
LFO Waveforms: There are four LFO waveforms available for Choruses, Flangers, Phasers, Tremolos, Auto Panners. They include SINe,  
TRIangle, SPecial-1, SPecial-2, and SPecial-3. The following examples show what these waveforms look like.  
FREQUENCY (SPEED)  
FREQUENCY (SPEED)  
FREQUENCY (SPEED)  
FREQUENCY (SPEED)  
FREQUENCY (SPEED)  
SP3 LFO  
SINE LFO  
SP1 LFO  
SP2 LFO  
TRIANGLE LFO  
(Modifiers only)  
Chorus  
Chorus is probably the most basic modulation effect. It is really just a very small delay whose time is always changing. As the time is varied,  
the delayed signal's pitch changes (just like a tape recordings pitch raises when you play it faster). By moving the time back and forth, you  
hear a sound that goes in and out of tune. When combined with the original sound, it almost sounds like more than one instrument is  
playing. The RP21D uses several choruses at once to make huge rich sounds. For example, the octal chorus uses eight chorus voices at once  
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RP21D User’s Guide  
Section Two - Editing Functions  
to create an incredible ensemble of sound. Aside from the more obvious speed and depth parameters (which adjust respectively how fast  
and far the sound goes out of tune), the RP21D allows you to use different waveforms. The waveform defines how it will move in and out of  
tune. The triangle waveform is very popular for slow, shallow chorus settings, while the sine waveform works nicely for faster, deeper  
settings.  
When do I use Chorus? The Chorus effect is so vast in applications, an easier question would probably be “When can’t I use a  
Chorus. When playing the Blues, turn the Speed and Depth parameters up to produce an almost Leslie-Type effect When trying to obtain  
“Big” rock guitar tone, use the Chorus to thicken-up and add depth to your sound. And, any time your using a clean tone Program, the  
guitar is always much more lush sounding when Chorus is added.  
Chorus Parameters:  
Note: not all parameters listed below are available in all Chorus modules.  
FX: Lvl  
Controls the signal input level fed to the module. Ranges from Off to 100%.  
Controls the level of the dry (uneffected) signal. Ranges from Off to 100%.  
Dry: Lvl  
Balance  
Controls the left/right positioning of the dry signal in the stereo soundfield. Ranges from -99 (all left) to 99 (all  
right).  
Speed  
Depth  
Controls the Low Frequency Oscillator (LFO) speed of the chorus. Ranges from 0.06 to 16.0 Hz.  
Adjusts the intensity of the chorus effect. High settings produce dramatic modulation, while lower settings can be  
used to produce a more subtle, ambient swirling. Ranges from 0 to 30 milliseconds.  
Depth 1 - 2  
DEPTH1 adjusts the intensity of chorus voices 1-4. DEPTH2 adjusts the intensity of chorus voices 5-8. Ranges from 0  
to 30 milliseconds.  
Wander Speed  
Controls the secondary LFO speed of chorus voices 5-8. This is a secondary oscillator for voices 5-8 that causes  
deviations from the oscillation path set by DEPTH2. This control can produce radical new textures when used  
creatively. Try setting it slightly faster or slower than SPEED. Ranges from 0.06 to 2.0 Hz.  
Wander Depth  
Adjusts the intensity of the oscillation deviations produced by WANDER SPEED. WANDER DEPTH produces dramatic  
psycho-acoustic swirling effects when set higher than DEPTH2. Ranges from 0 to 10 milliseconds.  
WvFrm  
Selects which waveform the LFO follows. Options: sine, triangle, SP1 (special 1), and SP2 (special 2). See figure 3-4  
Dly A - B  
Controls the delay time of chorus voices A and B. Higher delay time settings produce a more dramatic sweeping  
sound. Ranges from 0 to 60 milliseconds.  
Dly C - D  
Dly E - H  
Out A - B  
Controls the delay time of chorus voices C and D. Higher delay time settings produce a more dramatic sweeping  
sound. Ranges from 0 to 60 milliseconds  
Controls the delay time of chorus voices E through H. Higher delay time settings produce a more dramatic sweeping  
sound. Ranges from 0 to 60 milliseconds  
Adjusts the overall level of chorus voice A or B. Ranges from Off to 100%.  
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Pan A - B  
Out C - D  
Pan C - D  
Out LA - LB  
Out RA - RB  
Spread  
Controls the placement of chorus voice A or B. Ranges from -99 to 99.  
Adjusts the overall level of chorus voice C or D. Ranges from Off to 100%.  
Controls the placement of chorus voice C or D in the stereo image. Ranges from -99 to 99.  
Adjusts the left-side level of chorus voice A or B. Ranges from Off to 100%.  
Adjusts the right-side level of chorus voice A or B. Ranges from Off to 100%.  
Controls the width of the effect’s stereo imaging. The higher the setting, the wider the image. The lower the setting,  
the more monophonic the effect becomes. Ranges from 1 to 10.  
Flanger  
A flanger is just a chorus that loops back into itself, causing what can be described as a tubular sound (since it sounds much like the  
reflections heard inside a large cement or metal pipe). It is still a modulating effect, so you hear a lot of sweeping movement. This makes the  
flanger a very colorful effect that can be easily overused if you're not careful. The more you feed the flanger back to itself, the more intense  
the sound becomes.  
When do I use Flanger? An electric guitar is the first sound that begs for the flanger effect. It works very well with both clean and  
distorted guitar sounds. By setting the Speed and Depth parameters to higher settings, this will add more depth and body to the overall  
guitar signal.  
Flanger Parameters  
Note: Not all of of the parameter listed below are available in all of the Flanger modules.  
FX: Lvl  
Dry: Lvl  
Balance  
Speed  
Controls the signal input level fed to the Module. Ranges from Off to 100%.  
Controls the level of the dry (uneffected) signal. Ranges from Off to 100%.  
Controls the positioning of the dry signal in the stereo soundfield. Ranges from -99 (all left) to 99 (all right).  
Controls the Low Frequency Oscillator (LFO) speed of the flanger. Ranges from 0.06 to 16.0 Hz.  
Depth  
Controls the intensity of the flange effect. High settings of DEPTH combined with high settings of FDBCK produce  
dramatic, synth-like textures. Ranges from 0 to 30 milliseconds.  
FdBck  
Controls how much of the flanged signal is fed back to the input of the Module. The FDBACK Parameter is what gives  
flangers their distinctive voice. Flangers are capable of both positive and negative feedback loops, so experiment to  
find the sound you like best. Ranges from -99% to 99%.  
WvFrm  
Selects which waveform the LFO follows. Options for this control include sine, triangle, SP1 (Special 1), and SP2  
(Special 2). The sine wave setting is probably the most easily recognized, but the smooth response of the triangle  
wave or the intensity of SP1 or SP2 typically produce better results. See figure 4-2.  
Dly A - B  
Controls the delay time of flange voice A or B. Shorter delay times produce a more dramatic, deeper sweeping  
sound. Ranges from 0 to 60 milliseconds.  
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Out A - B  
Pan A - B  
Out L - R  
Phasers  
Adjusts the overall level of flange voice A or B. Ranges from Off to 100%.  
Controls the stereo soundfield placement of flange voice A or B. Ranges from -99 to 99.  
Controls the output level of the left or right side of the flanger. Ranges from Off to 100%.  
The Phaser or “Phase Shifter” as it is sometimes called, is a classic effect from the 70's that uses phase cancellation to create a warm  
sweeping effect. The effect is created by making a copy of a signal and moving it in and out of phase while mixing it with the original signal.  
As it moves, different frequencies are cancelled out creating a smooth curling sound. There is also a feedback control that sends the shifting  
signal back into the phaser's input. This intensifies the sound even more.  
When do I use a Phaser? A great example of this can be heard most when you listen to music of the 70’s. Guitarist of the day loved  
their Phasers. A Phaser is a great effect to use when playing clean and funky rhythms.  
Phaser Parameters:  
Dry: Lvl  
Balance  
Speed  
Controls the level of the dry (uneffected) signal. Ranges from Off to 100%.  
Controls the positioning of the dry signal in the stereo soundfield. Ranges from -99 (all left) to 99 (all right).  
Controls the Low Frequency Oscillator (LFO) speed of the phaser. Ranges from 0.06 to 16.0 Hz.  
Depth  
Controls the intensity of the phaser effect. High settings of DEPTH combined with high settings of FDBCK produce  
dramatic, synth-like textures. Ranges from 0 to 30 milliseconds.  
FdBck  
Controls how much of the flanged signal is fed back to the input of the Module. The FDBACK Parameter is what gives  
phasers their distinctive resonating sound. Ranges from -99% to 99%.  
WvFrm  
Selects which waveform the LFO follows. Options for this control include sine, triangle, SP1 (Special 1), and SP2  
(Special 2). The sine wave setting is probably the most easily recognized, but the smooth response of the triangle  
wave or the intensity of SP1 or SP2 typically produce better results. See figure 4-2.  
Out A - B  
Adjusts the overall level of phaser voice A or B. Ranges from Off to 100%.  
Pan A - B  
Controls the stereo soundfield placement of phaser voice A or B. Ranges from -99 to 99.  
Controls the output level of the left or right side of the flanger. Ranges from Off to 100%.  
Out L - R  
Pedal Phaser  
The Pedal phaser is a phaser that can be controlled by an expression pedal to control the depth and feedback of the effect  
Pedal Phaser Parameters  
FX and Dry Level  
Controls the FX and Dry level of the Pedal Phaser module. Ranges from Off to 100%.  
Balance  
Sets the Balance of the effect. Ranges from L 100 to R 100.  
Pedal  
This parameter is used to be controlled by the expression pedal to control Depth and Feedback. Range: 0 to 100.  
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Depth  
This parameter controls the amount of modulation depth in the phaser. Range is 0 to 100%.  
This parameter controls amount of feedback in the phaser effect. Range is 0 to 100%.  
This parameter sets output of the pedal phaser effect. Range is from 0 to 100%.  
This parameter sets pan of the pedal Phaser Range is from 0 to 100%.  
Feedback  
Output A-B  
Pan A-B  
Rotary Speaker Simulator  
The Rotary Speaker Simulator allows you to emulate the classic rotating speaker sound, without the chiropractic problems that come with  
moving bulky speaker cabinets. The Rotary speaker is directly responsible for some of the most unique sounds in music. The applications  
for this effect are so diverse, it can be used to achieve sounds ranging from the Allman Brothers Band to the legendary Stevie Ray Vaughan.  
A unique parameter in the Rotating Speaker simulation is the Acceleration parameter. This parameter is used emulate the the time that it  
takes to get the Speaker up and spinning at full speed. The parameter can be assigned to a footswitch or the expression pedal so you can  
control the acceleration speed.  
Rotary Speaker Simulator Parameters:  
FX: Lvl  
Controls the signal input level fed to the Module. Ranges from Off to 100%.  
Controls the level of the dry (uneffected) signal. Ranges from Off to 100%.  
Controls the positioning of the dry signal in the stereo soundfield. Ranges from -99 (all left) to 99 (all right)  
Selects which speed mode the Rotor and Horn are in. Settings are fast or slow.  
Sets the horn stereo microphone spread. Ranges from 0 to 100%.  
Dry: Lvl  
Balance  
Mode  
Spread  
H - R: Level  
Sets the overall level of the Rotor or Horn. Ranges from Off to 100%.  
Slo - Fast Hrn Speed Controls the Low Frequency Oscillator (LFO) speed of the Horn. Ranges from 0.06 to 16.0 Hz.  
Slo - Fast Hrn Depth Controls the intensity of the rotating effect. Ranges from 0 to 30 milliseconds.  
Slo - Fast Hrn Doppler Sets the amount of shifted pitch heard in the Horn. Ranges from 0 to 50 milliseconds.  
Slo - Fast Rtr Speed Controls the Low Frequency Oscillator (LFO) speed of the Rotor. Ranges from 0.06 to 16.0 Hz.  
Slo - Fast Rtr Depth Controls the intensity of the rotating effect. Ranges from 0 to 30 milliseconds.  
X-Over  
Selects the frequency where the signal is split between the Horn and Rotor. Ranges from 25Hz to 20kHz.  
Acceleration: H - R Sets the amount of time that the Rotor and Horn take to come up to their full rotating speed. Ranges from 0 to 10  
seconds.  
Tremolo and Auto-Panner  
Look out, because the popular Tremolo and Auto panner effects of the 50’s and 60’s are back with a vengeance. These effects that revolu-  
tionized “Surf-Style” music can be heard all over the air waves in the 90’s. Tremolos and auto panners are similar to one another in that they  
both use an LFO to modulate input levels to produce vibrato effects.  
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RP21D User’s Guide  
Section Two - Editing Functions  
Tremolo  
The word tremolo actually has several definitions in the music world. It basically means that a sound is being modulated in amplitude (the  
volume is beating or pulsing). It could be emulated by turning a volume knob up and down. But you probably have better things to do than  
turn a volume control up and down throughout a whole song, so let the RP21D do it for you.  
Aside from speed and depth parameters, the tremolo also has an LFO waveform that determines the way a signal's volume is increased and  
decreased. While the Sine wave is probably the most common to the ear, the Triangle and Special 2 waveforms are progressively more  
intense.  
When do I use Tremolo? Tremolo is truly a vintage sound for the guitar, electric piano and organ. Most pronounced on the guitar, you  
can hear it used on everything from sweet ballads to blues rock 'n roll.  
Auto Panner  
The auto panner is really just a dual version of a tremolo. It changes the amplitude of the left signal just as a tremolo does, but the amplitude  
of the right signal is inverse to that of the left signal. This gives the illusion that the signal is moving back and forth between the left and right  
speakers.  
The Auto Panner's Speed typically doesn't get set as fast as the Tremolo since you usually want a sound to move smoothly back and forth in  
the stereo image. The RP21D auto panner is especially flexible since it can be used for either mono or stereo input sources. When used with  
a mono source, the signal pans back and forth as described earlier. When a stereo sound source is used, the original stereo image is  
maintained by moving the volume of the left signal exactly opposite of the right signal. The stereo image fades back and forth between the  
stereo extremes.  
When do I use an auto panner? The auto panner can be a very creative tool. When running your guitar rig in a stereo set-up with the  
right amount of cabinet separation, the Auto-Panner creates a stereo panning effect that is right out of this world.  
Auto panners can also add life to delays or choruses by moving them around instead of just sitting in one place in the mix. Simply place an  
auto panner module after a delay or chorus module. You don't need to set the auto panner's depth parameter too deep since you just  
want some gentle movement.  
Tremolo & Auto Panner Parameters:  
FX: Lvl  
Speed  
Depth  
Controls the signal input level fed to the Module. Ranges from Off to 100%.  
Controls the Low Frequency Oscillator (LFO) speed of the effect. Ranges from 0.06 to 16.0 Hz.  
Controls the intensity of the effect. As DEPTH increases, volume changes become more dramatic. Ranges from 0 to  
30 milliseconds.  
WvFrm  
Selects which waveform the LFO follows. Options for this control include sine, triangle, SP1 (Special 1), and SP2  
(Special 2). The sine wave setting is probably the most easily recognized, but the smooth response of the triangle  
wave or the intensity of SP1 or SP2 typically produce better results. See figure 4-2 on page 41.  
Delays  
A delay produces discrete, repeating echoes of the source material at a specified interval. In digital delays, the input signal is "sampled" or  
recorded into memory, where it is held for the amount of time you specify with the delay time setting, after which the sample is replayed at  
the output. The RP21D delays have a feedback meter that is used to send a portion of the delayed signal back to the input to be re-recorded  
along with new source material. The feedback setting determines how long the delay repeats take to decay to inaudibility.  
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RP21D User’s Guide  
Section Two - Editing Functions  
When do I use delay? When you’re the lone guitarist in a band, the Delay can be your best friend. The Delay repeats can create the  
illusion that there is more than one guitar being played. One trick to using delays effectively is setting the delays to fall in time with the  
music. This used to mean grabbing a calculator, dividing 60 by the tempo (beats per minute), then dividing that answer by the desired  
sub-beats . . . Sound like a hassle? Yeah, we thought so too. So the RP21D takes care of all the calculations for you! All you have to do is  
tap the TapIt (assign the tapit parameter to a footswitch) and manually tap in the desired delay time and the new time is added.  
Another common use for delay is for stereo imaging. Very small amounts of delay (10-25ms) can be used to make a signal sound like it is  
panned to one side. This trick works because of the way the brain interprets sounds. When your left ear hears something before the right  
ear, it thinks that the source of that sound is found somewhere to your left. You can also use delays set at 30-60ms, which spreads a sound  
to the extremes of the stereo image. Be careful with this technique if your mix has a chance of being listened to in mono.  
Delay Parameters  
Note: not all of the parameters listed below are available in all Delay modules.  
FX: Lvl  
Controls the signal input level fed to the Module. Ranges from Off to 100%.  
Dry: Lvl  
Balance  
Dly Time  
Controls the level of the dry (uneffected) signal. Ranges from Off to 100%.  
Controls the positioning of the dry signal in the stereo soundfield. Ranges from -99 (all left) to 99 (all right).  
Sets the maximum delay time available to each delay voice. For example, if DELAYTIME is set to 1000 ms, each delay  
voice can be set from 0 to 100% of that delay time. Ranges from 0 to 1.4 seconds (Maximum delay times differ  
between 4th, 3/4, HLF, and FUL module Types.) Half bandwidth delay times automatically double the set delay time  
used used.  
FdBck  
TapIt  
Controls the fade time of the delay repeats. Higher settings take longer to fade out, while a setting of zero could be  
used to limit the delay to one repeat per voice. The delay provide both positive and negative feedback settings.  
Ranges from -99% to +99%.  
Allows you to change DELAYTIME in real-time, by tapping the TAPIT button at the tempo you want. Delay voice  
percentages do not change when using this control.  
Smear  
LPF  
Sets the spread of Diffusion of the Delay Repeats. Ranges from 0 to 100%.  
Selects where the Low Pass Filter is positioned within the Delay Module. Positions are: Pre Delay or Post Delay.  
Selects the Frequency band that appears in the LPF. Ranges from 25 Hz to 20 kHz.  
Frequency  
Gain  
Controls the output gain of the LPF. Ranges from -12 to 12.  
Dly A - B  
Controls the percentage of DELAYTIME allocated to delay voices A and B. For example, if DELAYTIME (above) is set  
to 1000 ms and DLYA is set to 75%, the voice A delay time is 750 ms. Remember, each voice in the Module can have  
any delay time up to 100% of DELAYTIME. Ranges from 0% to 100%.  
Dly C - D  
Out  
See Dly A - B.  
Adjusts the overall level of the Delay. Ranges from Off to 100%.  
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RP21D User’s Guide  
Section Two - Editing Functions  
Pan  
Controls the stereo soundfield placement of the delay. Ranges from -99 (all left) to 99 (all right).  
Adjusts the left or right output level of the Delay. Ranges from Off to 100%.  
Out L - R  
Out A - B  
Pan A - B  
Out C - D  
Pan C - D  
Out LA - LB  
Out RA - RB  
Out LC - LD  
Out RC - RD  
Adjusts the output level of delay voice A or B. Ranges from Off to 100%.  
Controls the stereo soundfield placement of delay voice A or B. Ranges from -99 (all left) to 99 (all right).  
Adjusts the output level of delay voice C or D. Ranges from Off to 100%.  
Controls the stereo soundfield placement of delay voice C or D. Ranges from -99 (all left) to 99 (all right).  
Adjusts the left-side output level of delay voice A or B. Ranges from Off to 100%.  
Adjusts the right-side output level of delay voice A or B. Ranges from Off to 100%.  
Adjusts the left-side output level of delay voice C or D. Ranges from Off to 100%.  
Adjusts the right-side output level of delay voice C or D. Ranges from Off to 100%.  
Multi Effects Modules - Chorus/Delay and Flange/Delay  
The RP21D Multi Effect Modules allow the User to combine either Delay and Chorus or Delay and Flange within one Effect module block.  
This is ideal for situations where the User needs to add another effect to the Effect Configuration, but is running low on signal processing  
resources. Within the module, there is a unique parameter that allows you route the signal several different ways between the two effects.  
Multi-Effect Module Parameters  
FX: Lvl  
Dry: Lvl  
Balance  
Route  
Controls the signal input level fed to the Module. Ranges from Off to 100%.  
Controls the level of the dry (uneffected) signal. Ranges from Off to 100%.  
Controls the positioning of the dry signal in the stereo soundfield. Ranges from -99 (all left) to 99 (all right).  
Selects the route signal path within the Chorus/Delay, and Flange/Delay Multi effects modules. The 3 settings are: 1)  
Chorus/Flange into Delay with feedback into the Delay 2) Chorus/Flange into Delay with feedback into Chorus/Flange  
3) Delay into Chorus/Flange with feedback thru the Chorus/Flange.  
Speed  
Depth  
Controls the Low Frequency Oscillator (LFO) Speed of the Chorus or Flanger. Ranges from 0.06 to 16.0 Hz.  
Adjusts the intensity of the Chorus or Flanger effect. Ranges from 0 to 30 milliseconds.  
Feedback (Flanger) Controls how much of the flanged signal is fed back to the input of the Module. The FDBACK Parameter is what gives  
flangers their distinctive voice. Flangers are capable of both positive and negative feedback loops, so experiment to  
find the sound you like best. Ranges from -99% to 99%.  
WvFrm  
Selects which waveform the LFO follow. Options for this control include: Sine, Triangle, SP1 (Special 1), and SP2  
(Special 2).  
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Section Two - Editing Functions  
C/F: Delay  
Delay Time  
Feedback  
Controls the delay time of the Chorus or Flanger voice. Ranges from 0 to 40 milliseconds.  
Sets the delay time for the delay tap. Ranges from 0 to 300 milliseconds.  
Controls the fade time of the delay repeats. Higher settings take longer to fade out, while a setting of zero will limit  
the delay to one repeat. Ranges from 0 to 99%.  
TapIt  
Allows you to change the Delay time in real-time by tapping the TAPIT button at the tempo you want. Delay voice  
percentages do not change when using this control.  
Level: C/F/D  
Controls the overall output level of each effect block. Ranges from Off to 100%.  
Pan: C/F/D  
Controls the stereo soundfield placement of each effect block. Ranges from -99 (all left) to 99 (all right).  
Reverse Delay  
A reverse delay is an echo effect which records the incoming signal, and then repeats it backwards. This effect is similar to the backwards  
masking effect done in recording studios. This is where a guitar was recorded on to tape and then played backwards while being mixed  
back in to the music.  
On/Off  
Selects whether the effect is active, or bypassed.  
FX Level  
Dry Level  
Controls the volume level of the reverse delay signal. Ranges from off to 100%  
Controls the volume level of the incoming source signal, or the signal that has no reverse delay effect. Ranges  
from off to 100%  
Balance  
Controls the left/right placement of the reversed signal in the stereo field. Ranges from l-99 (full left) to r-99 (full  
right) 0 is centered.  
Reverse Time  
This parameter adjusts the length of time for which the effect will record. Range is dependent upon the processing  
power assigned to the module (5 seconds maximum with full power module).  
Time Warp  
Time warp is an interesting effect that records the incoming signal in to the delay, has the ability to then slow it down, and then play it back  
in reverse. It sounds similar to hitting the stop button on a multi-track recorder, and you hear the sound slow down as the reels slowly stop  
turning, and then the passage plays backwards.  
On/Off  
Controls whether the time warp effect is active, or bypassed.  
FX Level  
Dry Level  
Amount  
Controls the volume of the time warped sound. Range is from off to 100%.  
Controls the volume of the original uneffected signal. Range is from off to 100%.  
Adjusts the amount that the signal is warped or slowed down. Range is from off to 100%. 0-50 creates a tape stop  
effect. 51-100 creates a tape start effect in reverse.  
Warp Time  
This is the length of time that the effect will record an incoming signal. Range depends upon the size of the  
selected module.  
Out L  
Out R  
Volume control for the left output. Range is from off to100%.  
Volume control for the right output. Range is from off to100%.  
Sampler  
A sampler will record a musical passage, or riff. It will then trigger, or repeat it on your demand. Samples can be layered (one sample  
stacked on top of another), and may put in loop mode (where they continue to repeat automatically).  
On/Off  
Controls whether the sampler effect is active, or bypassed.  
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Section Two - Editing Functions  
Loop  
This parameter will engage, or disengage the loop function. With the loop function engaged, the sampled signal  
will automatically continue to repeat. Range on and off.  
Over Dub  
RecPB  
This parameter allows you to play one passage in to the sampler, and then layer another passage over the top of  
the first one. In other words, the two samples will combine. Ranges on and off.  
This selects whether the sampler is about to record a sample, or playback the existing sample. When no sample  
has been recorded, this will default automatically to the record mode. After a sample has been recorded, it will  
default to playback mode. Range record and playback.  
Trig  
This is the trigger parameter. Every time that the trig parameter is adjusted, it will repeat the recorded sample  
from the beginning.  
Start Time  
This parameter allows you to trim the beginning of the sample. If for instance the recorded sample has an  
undesired pause or noise at the beginning of it, the start time may be used to remove this from the sample. Range  
varies depending on the size of the module.  
End Time  
AudTrg  
This parameter allows you to trim off the end of the sample. If the sample had recorded more than you wanted it  
to, this excess in the recording may be removed. Ranges vary depending on the size module that was used.  
This is an on/ off parameter, which selects whether the recorded sample can be triggered (told to repeat) by the  
incoming audio signal, or not. Range on and off.  
AudThr  
This parameter selects the strength of the audio signal necessary to trigger the sample when the “”audio trigger”  
parameter has been set to on. Ranges from off to 100%  
RecLvl  
Direct  
PlyLvl  
Adjusts the volume level of the source signal as it is recorded.  
Adjusts the volume of the dry signal, or the signal that will pass through the sampler.  
Adjusts the volume level of the signal after it has been recorded by the sampler.  
Reverbs  
Reverberation is probably the most widely used effect because it allows you to simulate the sound reflection characteristics of almost any  
kind of room. In a real room, reverb is a result of sound reflecting off room surfaces such as the walls, floor, ceiling, and objects in the  
room. The materials, size, and shape of the room determine how long these reflections echo and decay before dying out completely. These  
factors also help determine the audio characteristics of the room, such as how long the high-frequency reverberations ring when compared  
to the low frequencies, or how much initial "slapback" the room wall produces when a sound hits.  
Today’s technology allows the RP-21D to offer a complete palette of flexible, easy to use reverbs. There are seven basic reverbs to choose  
from:  
1) Reverb - Simple, straight ahead reverb with only the most basic parameters.  
2) Dual Reverb - Multi-dimensional reverb with flexible frequency band-splitting capabilities. The reverb can be  
divided into primary and secondary stages using selectable High or Low Pass cross-overs.  
3) Stereo Dual Reverb - A true stereo version of the Dual Reverb.  
4) Stereo Reverb - A true stereo version of the Reverb Module.  
5) Gated Reverbs - A very linear, high energy reverb that can be set to decay, stay flat, or ramp up the reverb  
decay, creating many unique ambient effects.  
6) Spring Reverb - A recreation of the old Spring Tank Reverb found in Vintage and Modern combo Amps.  
7) Room Echo - A true stereo, multi-tap delay for creating small ambient spaces. The delays are divided into four  
sections of early reflections. These reflections can be placed anywhere in the stereo field and can be as dense or  
sparse as necessary. The Room Delay also includes a feedback loop for delay regeneration.  
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Section Two - Editing Functions  
Reverb  
Real life reverberation is the result of sound reflecting off surfaces in a room or hall. It can best be described as millions of small echoes  
that decay over a period of time. The size of the room, the surface type of the walls, or the carpet on the floor all contribute to the way real  
reverberation behaves and sounds.  
When do I use Reverb? When recording in the studio, nearly always. Many guitar tracks, for example, are recorded in a very sterile  
environment (i.e. very dry), but adding reverb can add lush depth to any guitar track and you can get those great sounds in the Studio or  
Live.  
Why should I use stereo reverb? Digital Effects such as Chorus and Delay produce stereo imaging type effects. Stereo reverb helps  
maintain that original stereo image. But don't forget that millions of hit recordings were made using mono input reverbs that created a  
stereo output image. The theory is that sound generally originates from one point in a room, so mono often works just fine. The rule?  
Don’t get caught using too much reverb on your guitar in live situations. Even if the room is small, it still produces some reverb. Too  
much makes the guitar go away. Let it compliment the room.  
Gated Reverb  
Gated reverb doesn't behave as naturally as the standard varieties of reverb. Originally, it was created by taking a long, dense reverb and  
chopping it short with a noise gate. This made for a burst of reverberation energy that could help thicken up a variety of sounds.  
Digital signal processing techniques improved and soon allowed ways to create similar gated reverb sounds that were far more usable and  
flexible. Today's gated reverb doesn't get gated at all, it just sounds like it does. It is actually a large burst of delay taps that create the gated  
reverb sound. This allows you to chose the length of the effect along with different slope shapes.  
When do I use Gated Reverb? Using a Gated Reverb in a multi-effect guitar application is ideal for producing unusual special effects.  
Using the Gated reverb can produce a very rich and intense and ambience which can thicken up a guitar tone in many ways . This type of  
reverb is also ideal for producing an effect that is similar to backward masking.  
Reverb Parameters:  
Note: Not all of the parameters listed below are available in all Reverb modules.  
FX: Lvl  
Controls the signal input level fed to the Module. Ranges from Off to 100%.  
Controls the level of the dry (uneffected) signal. Ranges from Off to 100%.  
Dry: Lvl  
Balance  
Controls the left/right positioning of the dry signal in the stereo soundfield. Ranges from -99 (all left) to 99 (all  
right).  
Type  
Selects the reverb type. Each room type has a different decay range (just as real rooms do), so changing TYPE also  
changes the decay time of the room. Types are: Studio Room, Wood Room, Vocal Plate, Concert Hall, Plate Reverb,  
Chamber, Cathedral, Arena, Cement Shelter, and Infinite Spring (for Reverbs), and: Flat, Shelf, Decaying Linear,  
Decaying Logarithmic, Decaying Exponential, Decaying Sine, Reverse Linear, Reverse Logarithmic, Reverse  
Exponential, Reverse Sine, Peaking Linear, and Peaking Exponential (for Gated Reverbs).  
Density  
Controls the number of discrete room wall reflections during the early portions of DECAY. Higher settings produce  
more reflections while low settings yield fewer initial wall echoes. Use this control in conjunction with DISPERSION  
to build or reduce the thickness of early reflection clusters heard near the beginning of the reverberation. Ranges  
from 0% to 99%.  
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Section Two - Editing Functions  
Dispersion  
Diffusion  
Controls the distance (time) between the echoes set by DENSITY. If DENSITY is set low and DISPERSION is set high,  
the initial room echoes. Dispersion can be heard as discrete echoes followed by smoother room reverberations. Set  
DISPERSION low for a dense cluster of reflections during the early portions of DECAY. Ranges from 1 to 5.  
Simulates the presence of different room materials by controlling the smoothness of reverberations through the  
course of DECAY. Low DIFFUSION settings are great for simulating hard, flat surfaces while higher DIFFUSION  
settings can be used to simulate the presence of irregular surfaces in the room such as natural rock masonry or  
man-made diffusers. Unlike flat surfaces, these materials reflect (diffuse) the sound in many directions because of  
the irregularity of the surfaces themselves. This builds smoothness over the reverb progression. Ranges from 0% to  
99%.  
X-Over Type  
X-Over Freq.  
Selects which crossover type will be used for the Primary Secondary reverb stages. The two crossover types are High  
Pass (HP) and Low Pass (LP).  
Selects the Frequency where the crossover begins to function. Ranges from 25Hz to 20kHz.  
Prim & Secd X-Over These two Parameters allow the crossover to be turned On or Off for each reverb stage. When Off, that particular  
stage will be full bandwidth, otherwise its frequency response is limited by the X-Over Type and Frequency  
Parameters.  
Prim & Secd Damp Adjusts how quickly the room absorbs the high-frequency reverberations. In a real room, absorptive materials can  
be used to dampen the natural high-frequency reverberations of the room. High settings of DAMP cause the rever-  
berations to darken tonally and become less defined over the course of DECAY. Low settings cause less dramatic  
room effects on the tone of the reverberations. Ranges from 1 to 7.  
Low Pass  
Selects the frequency above which all frequencies are rolled off. This control can be used to darken the response of  
bright-sounding gated reverbs. Ranges from 100 Hz to 8 kHz in the Gated Reverb and from 100 Hz to 20 kHz in the  
Stereo Gated Reverb.  
Time  
Controls the length of the gated reverb in milliseconds (much like the DECAY control of a normal reverb). Ranges  
from 25 milliseconds to 300 milliseconds in the Gated Reverb and from 500 milliseconds in the Stereo Gated  
Reverb.  
Blend  
Cross-mixes reverberations from the left side into the right side and vice-versa. This can be used to increase the  
realism of the simulated room by adding reverberations from different parts of the room to each channel. Ranges  
from 0% to 99%.  
Prim & Secd Blend Adjusts the amount of BLEND for the Primary and Secondary reverb stages. See BLEND above for a complete  
parameter description.  
Decay  
Controls the length (RT60) of the room reverberations. This one control could have been divided among Size and  
Reflection controls but has been simplified here for easier use. To simulate a large room, use longer DECAY settings.  
For small rooms, use shorter DECAY settings. For more natural sounding reverbs, you may also want to decrease the  
DENSITY setting as DECAY is shortened. Ranges from .5 to 23 seconds depending on the Reverb Type currently  
selected.  
Prim & Secd Decay Controls the length (RT60) for the Primary and Secondary reverberation stages. This Parameter interacts with the  
SIZE and REFLCT Parameters. Larger SIZE and REFLCT settings will allow longer reverb decay times while smaller  
settings reduce the length of the reverb decays but produce better small environment emulations. Ranges from .26 to  
11 seconds.  
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Prim & Secd Size  
Changes the relative room size of the Primary and Secondary reverb stages. Ranges from 1 to 5.  
Prim & Secd Reflct Controls the simulation of energy loss of sound each time it is reflected. Hard, smooth materials like glass and wood  
have more reflectivity that softer, more porous materials. This control can be thought of as determining the  
“liveness” of the room. Ranges from 1 to 10.  
Note: The following Delay Parameters that are utilized within the Reverb section are to be used in the Room Echo reverb  
module.  
Delay A  
Delay B  
Delay C  
Sets the length of time before hearing Delay Group A. Ranges from 0 to 120 milliseconds.  
Sets the length of time before hearing Delay Group A and Delay Group B. Ranges from 0 to 120 milliseconds.  
Sets the length of time before hearing Delay Group B and Delay Group C. Ranges from 0 to 120 milliseconds.  
Delay D  
Sets the length of time before hearing Delay Group C and Delay Group D. Ranges from 0 to 120 milliseconds.  
Controls the output level of the Delay Groups. Ranges from Off to 100%.  
Out A - D  
Bal A - D  
Shape  
Controls the left/right balance of the Delay Groups. Ranges from -99 to 99.  
Selects the shape of the output levels for the delay group taps. Shape selections are: Flat, Peak, Decreasing,  
Increasing, Shelf, and Reverse Shelf.  
Spread  
Controls the width of the effect’s stereo imaging. Ranges from 1 to 10.  
FB: Dly  
Amount  
Sets the amount of time before the delay is fed back in. Ranges from 0 to 170 ms.  
Sets how much delay is fed back into the signal. Ranges from Off to 50%.  
Out L - R  
Adjusts the overall level of the left/right side of the reverb. Ranges from Off to 100%.  
Adjusts the overall level of the left side of the Primary reverb. Ranges from Off to 100%.  
Adjusts the overall level of the right side of the Primary reverb. Ranges from Off to 100%.  
Adjusts the overall level of left side of the Secondary reverb. Ranges from Off to 100%.  
Adjusts the overall level of the right side of the Secondary reverb. Ranges from Off to 100%.  
Prim Out L  
Prim Out R  
Secd Out L  
Secd Out R  
Detuners  
The detuner effect does exactly what its name implies; it detunes a sound (moves it out of tune) and allows you to add it to the original  
sound. The result can be almost chorus-like, but it doesn't move like the chorus effect does. This actually makes the detuner more  
transparent and not quite as thick as the chorus effect, which in many applications is a good thing (since effects can quickly pile up and clog  
up great sounding audio).  
When do I use a detuner? The detuner falls into the same guidelines as the chorus effect. It works with just about everything; It is  
ideal for thickening up a rhythm guitar track. Remember to experiment with the delay parameters if you are looking for a wider detuning  
sound. Adding 30-60 ms of delay to the detuner's voices that are panned hard to one side (while not delaying the other side) will change  
the detuner's stereo imaging greatly.  
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Section Two - Editing Functions  
Detuner Parameters  
FX: Lvl  
Controls the signal input level fed to the Module. Ranges from Off to 100%.  
Controls the level of the dry (uneffected) signal. Ranges from Off to 100%.  
Dry: Lvl  
Balance  
Dtn A - B  
Controls the positioning of the dry signal in the stereo soundfield. Ranges from -99 (all left) to 99 (all right).  
Controls the detuning amount for detuner voices A and B. Higher detune settings produce a more dissonant sound.  
Ranges from -50% to 50%.  
Dtn C - D  
Dtn E -H  
Dly A - B  
Controls the detuning amount for detuner voices C and D. Ranges from -50% to 50%.  
Controls the detuning amount for detuner voices E through H. Ranges from -50% to 50%.  
Controls the amount of time before detuner voices A and B are heard. Higher delay time settings produce a short  
slapback delay effect. Ranges from 0 to 60 milliseconds.  
Dly C - D  
Dly E - H  
Out A - B  
Pan A - B  
Out C - D  
Pan C - D  
Out LA - LB  
Out RA - RB  
Spread  
Controls the amount of time before detuner voices C and D are heard. Ranges from 0 to 60 milliseconds.  
Controls the amount of time before detuner voices E through H are heard. Ranges from 0 to 60 milliseconds.  
Adjusts the overall level of detuner voice A or B. Ranges from Off to 100%.  
Controls the stereo soundfield placement of detuner voice A or B. Ranges from -99 (all left) to 99 (all right).  
Adjusts the overall level of detuner voice C or D. Ranges from Off to 100%.  
Controls the stereo soundfield placement of detuner voice C or D. Ranges from -99 (all left) to 99 (all right).  
Adjusts the left side level of detuner voice A or B. Ranges from Off to 100%.  
Adjusts the right side level of detuner voice A or B. Ranges from Off to 100%.  
Controls the width of the effect’s stereo imaging. The higher the setting, the wider the image. The lower the setting,  
the more monophonic the effect becomes. Ranges from 1 to 10.  
Pitch Shifters and Harmony  
The pitch shifter allows you to move sound from one pitch to another. It accomplishes this by recording a small part of the original sound  
and then playing it back either faster (to raise the pitch) or slower (to lower the pitch). It does this over and over again to create a new  
pitch.  
The Harmony modules give you almost unlimited possibilities. you can use different harmony intervals to produce slide guitar effects. or  
Major or Minor 3rd intervals to create dual soloing lines reminiscent of the Eagles’ “Hotel California”.  
When do I use pitch shifting? Guitarists are probably the most well known users of pitch shifters. They commonly pitch shift their  
sound down by an octave to get a deep rumble out of their distortion, or shift it an octave up to emulate a 12 string guitar.  
Both guitar and synth players have created some amazing textures by pitch shifting their sound up a fifth (7 semitones). This creates more  
complex chords out of simple ones (e.g. a basic Cmaj chord sounds like a Cmaj9 chord, or Cmin7 becomes a Cmin11 chord). Lead lines  
sound amazing when using major 5th intervals up.  
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Section Two - Editing Functions  
Pitch Shifters Parameters  
Note: not all of the parameters listed below are available in all Pitch Shifter modules.  
FX: Lvl  
Controls the signal input level fed to the Module. Ranges from Off to 100%.  
Dry: Lvl  
Balance  
Shft A - B  
Controls the level of the dry (uneffected) signal. Ranges from Off to 100%.  
Controls the positioning of the dry signal in the stereo soundfield. Ranges from -99 (all left) to 99 (all right)  
SHFTA and SHFTB control the pitch intervals between the original note and voices A and B of the pitch shifter. Pitch  
shifters can be used for a wide variety of effects, including doubling, octave division, and chromatic harmonies. Each  
Pitch Shifter has a 4-octave range, stepped in semitones from -24 to +24.  
Dtn A - B  
Controls the detuning amount for pitch-shifted voices A and B. As DTN moves away from zero, dissonance becomes  
more pronounced. Low DTN settings can be useful for thickening or enhancing the imaging of the source material.  
Ranges from -50% to 50%.  
Shft C - D  
See Shift A - B.  
Dtn C - D  
Shft E - H  
See Dtn A - B.  
See Shift A - B.  
Dtn E - H  
Key  
See Dtn A - B.  
Sets the diatonic key for the harmonies. If the song you are playing is in the key of G Major, you would select G for  
the scale.  
Scale  
Sets the scale type for the Harmony you want to hear. Scale types include: Major, Minor, Harmonic Minor, Melodic  
Minor. Dorian, Mixolydian, Lydian, Lydian Augmented, Major Pentatonic, Minor Pentatonic, Blues, Whole Tone, Half-  
Whole,and Whole-Half.  
Interval  
Sets the basic interval of the Harmony. You can choose from one of several Harmony intervals. See the Harmony  
Interval Charts for reference.  
Out A - B  
Pan A - B  
Out C - D  
Pan C - D  
Out E - H  
Pan E - H  
Adjusts the overall level of pitch-shifted voice A or B. Ranges from Off to 100%.  
Controls the placement of pitch-shifted voice A or B in the stereo image. Ranges from -99 (all left) to 99 (all right).  
Adjusts the overall level of pitch-shifted voice C or D. Ranges from Off to 100%.  
Controls the placement of pitch-shifted voice C or D in the stereo image. Ranges from -99 (all left) to 99 (all right).  
Adjusts the overall level of pitch-shifted voice E through H. Ranges from Off to 100%.  
Controls the placement of pitch-shifted voice E through H in the stereo image. Ranges from -99 (all left) to 99 (all  
right).  
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Section Two - Editing Functions  
Out L - R  
Out LA - LA  
Out RA - RB  
Spread  
Adjusts the left or right output level of the pitch-shifted voice. Ranges from Off to 100%.  
Adjusts the left-side level of pitch-shifted voice A or B. Ranges from Off to 100%.  
Adjusts the right-side level of pitch-shifted voice A or B. Ranges from Off to 100%.  
Controls the width of the effect’s stereo imaging. The higher the setting, the wider the image The lower the setting,  
the more monophonic the effect becomes. Ranges from 1 to 10.  
Whammy Effects  
In today’s music industry, it seems that every album on the charts, whether it be Country, Rock, Industrial, or Alternative, are using the  
Whammy technology in some shape or form. Whether it be a subtle chorus Detune, or an all out 2 octave Whammy Dive, this thing is a  
definite attention getter, and first-call studio effect. At this rate, the Whammy effect could possibly log-in as much studio time as Chet Atkins.  
Whammy Effect Parameters  
Whammy On/Off  
Turns the Whammy module on or off. When the module is turned off, the signal will only continue to pass through  
the module if the dry level is turned up.  
FX Level  
This parameter lets you select the overall FX level mix of the Whammy Effect module. Ranges from: Off to 100%.  
Dry Level  
This parameter lets you select the amount of Dry signal that is included in the Whammy effect. Ranges from: Off to  
100%.  
Balance  
This parameter allows you to pan the Dry signal either to the Right or the Left in the stereo soundfield. Ranges from  
Left 99 to Right 99.  
Min Shift  
Max Shift  
This parameter sets the minimum pedal shift level of the Whammy effect. Ranges from: -72 (6 octaves down), to 24  
(2 octaves up).  
This parameter set the maximum pedal shift level of the Whammy effect. Ranges from: -72 (6 octaves down), to 24  
(2 octaves up).  
Min Detune  
Max Detune  
Pedal  
This parameter sets the minimum pedal level of detune effect. Ranges from: -50% (down 50 cents), to 50% (up 50  
cents).  
This parameter sets the maximum pedal level of detune effect. Ranges from: -50% (down 50 cents), to 50% (up 50  
cents).  
This parameter is used for the assignment of an expression pedal. This parameter also shows the pedal travel range.  
Ranges from: 0 to 100  
Out  
Pan  
This parameter is used to set the overall output level of the Whammy module. Ranges from: 0 to 100%  
This parameter is used to position the Whammy effect in the Stereo soundfield. Ranges from: Left 99 to Right 99.  
Auto Wah  
Break out the Bell-bottom jeans and the Disco mirror balls, because the Auto-Wah is here to play. The Auto Wah is a great effect use when  
you want a nasally wah-type effect, but you don’t want to do the leg work. The Auto Wah utilizes a sensitivity detector that reads the input  
signal, then simulates the action of a wah pedal.  
43  
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RP21D User’s Guide  
Section Two - Editing Functions  
Auto Wah Effect Parameters  
Auto Wah On/Off  
Turns the Auto Wah module on or off. When the module is turned off, the signal will continue to pass through the  
module.  
FX Level  
This parameter lets you select the overall FX level mix of the Auto Wah Effect module. Ranges from: Off to 100%.  
Sensitivity  
This parameter adjusts the sensitivity of the detection of the automatic wah. The higher the sensitivity is set, the wider  
the Wah range will be. Ranges from: Off to 100%.  
Equalizers  
The RP21D has a broad selection of equalizer Modules to cover virtually any need. If you need bigger Guitar tone, the EQs will give it to you.  
Both mono and stereo modules are available. Remember that mono equalizers connected to stereo sources will always sum the stereo signal  
together for equalization (thus eliminating the stereo image). If you need to maintain the stereo image, use a stereo equalizer module.  
The Parametrics allow you to cover very specific regions of the sound spectrum with extreme precision and control. Up to 6 bands of  
either stereo, or mono parametric equalization are available.  
The Graphic equalizers use 1/3, 2/3, or 1 2/3 octave ISO-standard frequency centers. Equalization or EQ is probably one of the most  
valuable tools the RP-20 Valve offers. EQ allows you to change the level of certain frequencies of a sound, and it comes in two different  
basic  
flavors: graphic and parametric. Graphic is the most common and easiest to use, but the parametric offers much more flexibility and  
power.  
When do I use EQ? This may seem overly simplistic, but you should use EQ whenever your ears tell you to use it! However, you need to  
remember that EQ can do more harm than good when not used carefully. The EQ can take that thin and “Clangy” sounding Guitar and  
add all of the low end in the world that your heart may desire. This can also be used on the other side. If you have a song that needs tight  
and bright rhythm guitar, you can use the EQ modules to take out the Lows and build up your mids  
Here are a couple of simple examples:  
If you feel your guitar tone is just a little dull, try cutting some of the lower frequencies, you always have to boost up  
the guitar’s' high frequencies, because it could quickly become too bright. Often, good EQ techniques use cut more  
than boost. This is where the old saying “less is more” definitely applies.  
If you are having a hard time being heard in the mix, don't make it louder. Listen carefully and see if there is  
another instrument that is conflicting with your Guitar. Adding a little EQ in the right spot of the less dominant guitar  
will allow it to speak a little easier through the rest of the music.  
Graphic Equalizers  
Graphic EQs give you control of the levels for fixed or pre-selected frequencies (bands) that are evenly spaced. The RP21D offers 8 and 15  
band Mono and 8-band Stereo GEQs and a 31 band mono GEQ. They all cover the complete range of frequencies, but the spacing between  
the 31 bands is much closer than the 8 bands, therefore offering more exact control of the sound.  
Graphic Equalizer Parameters  
Level  
Controls the signal input level fed to the Module. Ranges from Off to 100%.  
Phase  
Inverts the phase of the source signal. Can be set either IN or OUT of phase.  
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Section Two - Editing Functions  
Phase L - R  
Freq  
Inverts the phase of the left or right side of the stereo source signal. Can be set either IN or OUT of phase.  
Controls the amount of boost / cut applied to the selected frequency. The GEQ 8 uses 1-1/3 octave ISO standard  
frequency centers, (Hz) while the GEQ15 and GEQ31 use 2/3 octave and 1/3 octave frequencies. Boost/cut range for  
each band is from -12 to 12.  
Parametric Equalizers  
Parametric EQs offer the added flexibility of letting you define the center frequency you want to adjust, and how many frequencies around  
that center frequency you want to affect. Some of the PEQ modules in the RP21D also include high shelf and low shelf EQ bands. A high shelf  
allows you select a frequency, and the boost/cut parameter changes the level of all the frequencies above that selected frequency. The low  
shelf works the same way but works on frequencies below the selected frequency.  
Parametric Equalizer Parameters  
Level  
Controls the signal input level fed to the Module. Ranges from Off to 100%.  
Phase  
Inverts the phase of the source signal. Can be set either IN or OUT of phase.  
Phase L - R  
LoShlv Freq  
LoShlv Level  
Inverts the phase of the left or right side of the stereo source signal. Can be set either IN or OUT of phase.  
Selects the center frequency of the low-frequency shelving EQ band. Ranges from 25Hz to 20kHz.  
Adjusts the amount of boost or cut applied to the center frequency of the low-frequency shelving EQ band (selected  
by LOSHLV FREQ). Ranges from -12 to 12.  
Band # Freq  
Sets the center frequency of the selected band. 6-band PEQs have four true parametric bands of EQ plus shelving  
high- and low-frequency controls with variable frequency. Bands 1 and 2 range from 25 Hz to 20 kHz. Bands 3 and  
4 range from 1 kHz to 20 kHz.  
Band # Width  
Controls the bandwidth of the selected frequency. The higher the setting of WIDTH, the more frequency-selective the  
boost/cut becomes. In other words, with low (narrow) WIDTH settings, frequencies around the selected center  
frequency are not affected by the LEVEL setting. As WIDTH increases, frequencies around the center frequency  
become affected by the setting of LEVEL. Range is from 0.08 to 4.00 kHz.  
Band # Level  
HiShlv Freq  
HiShlv Level  
Adjusts the amount of boost or cut applied to the selected frequency. Varies from -12 to 12.  
Selects the center frequency of the high-frequency shelving EQ band. Ranges from 1kHz to 20kHz.  
Adjusts the amount of boost or cut applied to the center frequency of the high-frequency shelving EQ band (selected  
by HISHLV FREQ. Ranges from -12 to 12.  
45  
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RP21D User’s Guide  
Section Two - Editing Functions  
Master Mix  
The Master Mix is found at the end of editing your Digital Effects. After you have edited the last Digital Effect module in your configuration,  
press the Effects button again. The Display will look something like this:  
1
2
Master Mix: Dry   Wet  
msdB  
%kHz  
%kHz  
 40  
50%kHz  
  6 0  
%kHz  
msdB  
1
2
msdB 3  
msdB 4  
2
LINK CHANGED  
LINK CHANGED  
TUBE  
LINK  
LINK  
COMP  
WAH  
EQ  
EQ  
GATE  
4
DIST  
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
b
L/R OUTS  
PAGE  
 1  
OF 2  
3
The Display is now telling you four things about the Master Mix.  
1. This is the Dry Level present at the output of the Digital Section. The Dry signal is the raw Preamp signal absent of Digital Effects. The  
number three icon is indicating that you must press the number three button in order to access the Dry level Parameter. You can then  
rotate the Data Wheel to change to level of the Dry signal present in the mix.  
2. This is the Wet Level present at the output of the Digital Section. The Wet signal is the Preamp signal after it has been processed through  
the Digital Effects. The number four icon is indicating that you must press the number four button in order to access the Wet level  
parameter. You can then rotate the Data Wheel to change the level of the Wet signal present in the mix.  
3. This is telling you that there are two pages of parameters associated with the Master Mix, and that you are currently on the first page.  
Press the Next Page button to access page two.  
Cabinet Emulator  
Page two of the Master Mix Section provides access to the Cabinet Emulator parameters. Once you have accessed this page, the display will  
look something like this:  
3
1
2
CabEm:Type  Pre  Digital  
%kHz  
msdB  
%kHz  
  7  
%kHz  
Pre  
%kHz  
    
msdB  
1
2
msdB 3  
msdB 4  
2
byp  
LINK CHANGED  
LINK CHANGED  
LINK  
LINK  
COMP  
WAH  
TUBE  
EQ  
EQ  
GATE  
4
DIST  
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
b
L/R OUTS  
PAGE  
 2  
OF 2  
4
The Display is now telling you four things about the Cabinet Emulator.  
1. This parameter will turn the Cabinet Emulator on or off within the currently active Program. The number one icon is indicating that you  
must press the number one button in order to access the on/off parameter. You can then rotate the Data Wheel to change the status of the  
Cabinet Emulator for you Program.  
2. This is the Cabinet Type. Each type will provide different tonal response to the Program. The number two icon is indicating that you must  
press the number two button in order to access the Cabinet type parameter. You can then rotate the Data Wheel to change the type of  
cabinet being used.  
3. This parameter selects whether the Cabinet Emulator will be placed before or after the Digital section. The number four icon is indicating  
that you must press the number four button to access the Cabinet Emulator placement parameter. You can then rotate the Data Wheel to  
change between pre or post digital.  
4. This section of the display is telling that there are two pages of parameters and that you are on the second page. There are no more pages  
to display.  
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RP21D User’s Guide  
Section Two - Editing Functions  
Storing/Copying Programs  
Any time that you make a change to a Program, the store button will light indicating that in order to retain the changes, you have to store  
your changes to a Program. If you switch Programs, or turn the power off to the RP21D without storing your changes, the RP21D will revert  
to the last stored version of that Program erasing all the changes that you had made. Once you have edited a Program to your satisfaction,  
press the store button once. The Display will take you to a naming menu and look something like this:  
1
Name:Styx And Stones  
%kHz  
%kHz  
msdB  
%%kkHHzz  
%k%HkzHz  
ms  
mdsBdB  
1
2
3
mssddBB 4  
 demL  In  
LINK  
CA  
m
P
sdB  
 s   
nbr  
LINK CHANGED  
LINK CHANGED  
LINK  
GATE  
COMP  
WAH  
TUBE  
EQ  
4
DIST  
EQ  
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
b
OF 4  
 3  
L/R OUTS  
PAGE  
2
3
4
5
The display is now showing you 5 things that pertain to naming the Program.  
1. This is the current name of the Program. There will be a cursor under one of the characters of the name. This indicates which character  
has been selected. Rotating the Data Wheel will change the character. The next and previous page buttons will move the cursor right or  
left.  
2. The number 1 icon is indicating that pressing the number 1 button will change the currently selected character to a letter, change from  
upper case to lower case, or lower case to upper case.  
3. The number 2 icon is indicating that pressing the number 2 button will change the currently selected character to a number.  
4. The number 3 icon is indicating that pressing the number 3 button will select the insert function and shift the characters to the left.  
5. The number 4 icon is indicating that pressing the number 4 button will select copy and shift the characters to the right.  
After you have given your new Program a name, press the Store button again. The Display will look something like this:  
1
Store Prg to:Styx And Sto  
%kHz  
%kHz  
msdB  
%%kkHHzz  
%k%HkzHz  
ms  
mdsBdB  
1
2
3
mssddBB 4  
 Inms  CO  
LINK  
CA  
m
P
sdB  
 P   
  4  
LINK CHANGED  
LINK CHANGED  
LINK  
GATE  
COMP  
WAH  
TUBE  
EQ  
4
DIST  
EQ  
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
b
OF 4  
 3  
L/R OUTS  
PAGE  
2
The Display is now telling you 2 things about where you are going to store this new sound.  
1. This line of the Display is telling you that you are about to replace the Program that is named here.  
2. This section is telling which Program number you are about to store your changes to. The number two icon is indicating that you must  
press the number two button in order to access the destination Program number. Then you can rotate the Data Wheel to select the Program  
number that you want to store your changes to.  
Pressing the Store button a third time will execute the store function. The Display will briefly show Storing Program, and then return to the  
performance mode. Your changes have been saved. To copy one Program to another Program location, start by selecting the Program that  
you want to copy. Then follow the steps for storing a Program.  
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RP21D User’s Guide  
Section Three - Advanced Topics  
Section Three - Advanced Topics  
Foot Controller Functions  
The 10 numbered footswitches can perform a variety of different functions of the RP21D. You can use them to select specific Programs, turn  
effects on and off, and change to a specific value for any of the effect parameters. The Bank Up and Bank Down switches will increment and  
decrement through the 19 different Banks contained in the RP21D. Each Bank can have completely different functions assigned to each of  
the 10 numbered footswitches. In addition, by pressing and holding the Bank Up switch you can bypass all effects in the RP21D. By pressing  
and holding the Bank Down switch, you can access the tuner. The two Bank switch assignments are fixed and cannot be changed, but the 10  
numbered footswitches can be assigned any function that you choose.  
Assigning Programs  
Assigning a footswitch to call up a specific Program is a very easy process. Simply use the Data Wheel to select the Program that you want to  
assign. Then press the Assign button once. The Display will look something like this:  
Select a Contrl F.Switch  
msdB  
 1%kHz  
1
LINK CHANGED  
LINK CHANGED  
LINK CHANGED  
GATE  
COMP  
WAH  
TUBE  
DIST  
EQ  
EQ  
L/R OUTS  
2
FACTORY  
BANK  
USER  
#
b
L/R OUTS  
At this point, the bottom row of switches will flash in succession from 1 to 5. They are asking you to choose which footswitch you want to  
assign the Program to. Simply press the desired footswitch. If no switch is pressed within 4 seconds, the RP21D automatically exits the  
Assign menu, and reverts back to the performance mode.  
Assigning On/Off Functions  
Assigning the on/ off function of an effect module to a footswitch is almost as easy as assigning a Program. Simply select the Program in  
which you want to switch an effect on and off. Use the Preamp or Effects buttons to select the effect module that you want to turn on and off.  
Use the 1-4 parameter buttons to select the on/off parameter (this will always be on the first page of the effects parameters and the first  
button). Press the Assign button once. If the function is already assigned to a footswitch, the display shown below will come up. If the  
function is not currently assigned, the Display will ask you to select a control Footswitch as previously shown in the Program assignment  
diagram. Press the footswitch you wish to use to turn your effect on and off with. The display will look something like this.  
4
1
2
3
TubeD  FS #  Min   Max  
%kHz  
%kHz  
msdB  
%kHz  
F 6  
%kHz  
bypmo  
1
2
msdB 3  
sdB 4  
2
On  
 On    
msdB  
LINK CHANGED  
LINK CHANGED  
TUBE  
LINK  
LINK  
COMP  
WAH  
EQ  
GATE  
4
DIST  
EQ  
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
19b  
L/R OUTS  
PAGE  
 5  
O F  
5
The display is now telling you 5 things about the Footswitch assignment.  
1. This shows you that the parameter you have chosen to assign is the on/off parameter for the Tube Distortion, and that the assignment is on  
or active. The number one icon is indicating that you must press the number one button to access this parameter. You can then rotate the  
Data Wheel to turn this link on or off.  
2. The footswitch that has been chosen to control this parameter is the number 6 footswitch. The number two icon is indicating that you  
must press the number two button to access this parameter. You can then change the footswitch number this parameter is assigned to by  
rotating the Data Wheel.  
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Section Three - Advanced Topics  
3. This is the minimum value that the parameter will change to. In our example this is the status when the light on the footswitch is out.  
4. This is the maximum value that the parameter will change to. In our example this is the status when the light on the footswitch is on.  
There are parenthesis in between the words Min and Max. These parenthesis will show the value as it changes in real time.  
5. There are 19 pages of parameter control assignments that can be made. Each assignment is represented as one page.  
Anytime that you make or change an assignment to a footswitch, you need to store the new assignments to the Program. See page 47 for  
information on Storing procedures.  
If you try to assign an on/off function to a pedal that is currently assigned to select a program, or vice-versa, the Display will verify this  
change and ask you if you want to reassign the pedal. The Display will look something like this:  
Re-assign F.switch ?  
%kHz  
%kHz  
msdB  
On%kHz  
msdB  
4th  
%kHz  
1
2
msdB 3  
yesmsdB  no    
LINK  
4
2
LINK CHANGED  
LINK CHANGED  
TUBE  
LINK  
COMP  
WAH  
EQ  
EQ  
GATE  
4
DIST  
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
b
L/R OUTS  
PAGE  
 1  
OF 5  
At this point you have two options:  
1. If you want to change the Footswitch assignment from selecting a Program to switching an effect on and off, or vice versa, select yes by  
pressing the number 3 button.  
2. If you don’t want to reassign the function of the Footswitch, select no by pressing the number 4 button.  
If no selection is made within 3 seconds, the RP21D will assume you did not want to reassign the footswitch and return to the previous  
menu.  
Expression Pedal Assignments  
The built in Expression Pedal on your RP21D can control any parameter of any effect in real time. In most of the Factory Programs the  
Expression Pedal is acting as a Volume Pedal, a Wah Pedal, or a Pitch Bend. However you can also assign the Expression Pedal to morph  
between the tube and solid state distortion paths, or between two different Digital effects, or change the delay time, or any number of other  
parameters. Assigning functions to the expression pedal are easy with the RP21D. Simply follow the steps listed below.  
1. Use the Preamp or Effects buttons to select the effect module containing the parameter that you want to control.  
2. Use the Next Page button to select the page containing the parameter you want to control.  
3. Use the 1-4 numbered parameter buttons to access the specific parameter that you want to control.  
4. Press the Assign button once.  
5. Rock the Expression Pedal back and forth once.  
6. Set the minimum and maximum values for the parameter.  
7. Store the assignment to your Program.  
If the Expression Pedal is already assigned to a parameter, you will have to delete the assignment. If you do not delete the assignment, the  
Expression Pedal will simmply add the new assignment and control both parameters simultaneously. See the section on Viewing, Changing,  
or Deleting Expression Pedal Assignments for more information.  
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RP21D User’s Guide  
Section Three - Advanced Topics  
Assigning the Wah  
As you can see, assigning the Expression Pedal to control a parameter is a very simple process. The most common mistake made when  
assigning the expression pedal is failing to access the specific parameter before pressing the Assign button. If for instance you want to assign  
the pedal to control the Wah, Step number 1 listed above is to press the Preamp button until you have accessed the Wah effect module. Step  
number two can be omitted because there is only one page of Wah parameters. Step number three would be pressing the number 2  
parameter button to access the Wah pedal position parameter. Then continue with steps 4 through 7.  
Assigning the Morph or Volume  
Assigning the Expression pedal to control volume, or to morph between Tube and Solid State Distortion types uses the steps listed above as  
well, but you will find the Morph parameter on page two of the Configuration page. So, step 1 is pressing the Effects button which will access  
the Configuration page. Step is pressing the Next Page button to access page 2 of 2. Step 3 is to use the number 3 parameter button to access  
the pedal function. There are three possibilities for this parameter:  
Pre Digital - When the Expression Pedal is set to control Volume, this selection will control the volume before the Digital Effects.  
Post Digital - When the Expression Pedal is set to control Volume, this selection will control the volume after the Digital Effects.  
Morphing - This selection will allow you to Morph between the Tube and Solid State Distortions of the Preamp.  
Rotate the Data Wheel to make your selection. Then follow steps 4 through 7 listed above.  
The Digital Effect configuration will make a difference in the way that the morphing function responds in relation to the Digital Effects. The  
following block diagrams show the signal flow for each type of configuration when morphing is assigned to the Expression Pedal.  
L
TUBE  
R
PREAMP  
L
L/R OUTPUT  
MORPH  
FX 1  
FX 2  
R
+
+
L
DIST  
PREAMP  
Series Configuration  
R
L
TUBE  
PREAMP  
L/R OUTPUT  
R
FX 1  
FX 2  
FX 2  
L
MORPH  
R
L
DIST  
PREAMP  
FX 1  
R
Parallel Configuration  
L
L
TUBE  
PREAMP  
L/R OUTPUT  
R
FX 1  
FX 2  
R
L
L
+
+
MORPH  
R
R
L
L
L/R OUTPUT  
DIST  
PREAMP  
R
FX 1  
FX 2  
R
Split/Parallel Configuration  
Series  
In the Series configuration, the left and right outputs of the Tube and Solid State Distortions get summed together at the output of the  
morphing section. A monaural signal is then fed into the Digital Effects which will provide the stereo imagine.  
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Section Three - Advanced Topics  
Parallel  
In a Parallel configuration, the left and right outputs of the Tube and Solid State Distortions are summed together at the output of the  
morphing section. A monaural signal is then fed into both of the Digital Effects chains. The Digital Effects will provide the stereo imagine.  
Split/Parallel  
In a Split Parallel configuration, the left and right outputs of the Tube and Solid State Distortions are kept discrete. The left outputs of both  
are fed into the top Effects chain, and the right outputs are fed into the bottom Effects chain. Each chain will provide stereo outputs. The left  
outputs of both chains are summed together, and the right outputs of both chains are summer together.  
See the Preamp Master section on page 19 for more information on panning assignments of the Tube and Solid State Distortions, and the  
Effect Configuration section on page 24 for more information on selecting a Digital Effect configuration.  
Modifiers  
A Modifier is a way of varying the value of a parameter automatically through the use of a Dynamic Filters and Low Frequency Oscillators, or  
remotely through the use of MIDI Continuous Controllers. This can dramtically alter your sound and create some interesting effects. The  
RP21D includes two dynamic filters, and two low frequency oscillators (LFO’s) which can be asssigned to modify any parameter of any  
effect. It is also capable of responding to any MIDI Continuous Controller.  
Dynamic Filters  
A Dynamic Filter will vary the value of the parameter it has been assigned to based on the amplitude of the incoming signal. In other words,  
you can change the value of an effects parameter simply by how hard or soft you strike the strings. For example, you could assign the Dynamic  
Filter of a Program to control a chorus level. As the dynamics of the music increase, the chorus becomes less apparent. Ease up on the string attack a  
little and the chorus increases. ALL IN REAL TIME!  
Low Frequency Oscillators  
An LFO will vary the value of any assigned parameter, between two pre-determined stop points automatically. An LFO will continuously cycle back and  
forth between two points at a speed that you designate. In other words, you could assign the Chorus Level to an LFO and the LFO would fade the  
Chorus in and out continuously. The speed that you set the LFO to operate at will determine whether the Chorus fades in and out gradually, or rapidly.  
MIDI Continuous Controllers  
A MIDI CC can be anything from an external expression pedal to the mod wheel of a MIDI synthesizer. A value will be transmitted on a  
specific MIDI CC number (between 1 and 127 and channel pressure). Any parameter within the RP21D that has been assigned to that same  
MIDI CC number will change its value as the MIDI CC changes value. In other words, you could assign the Chorus Effect Level to a MIDI CC  
number and your Chorus Level could be controlled by a MIDI sequencer or keyboard.  
Assigning a Modifier to a Parameter  
The Procedure for assigning a parameter to either type of modifier is as follows:  
1. Use the Preamp or Effects buttons to select the effect that contains the parameter you wish to assign. In our example, we want to assign the Chorus  
Level to a modifier so, press the Effects button until you have reached the Chorus Effect (chorus must be an effect within the Program).  
2. Select the parameter that you want to assign. Since the Effect Level of the Chorus is on the second page of Chorus parameters, press the Next Page  
button to access page two. The Effect Level is preceeded by the number 1 icon so, press the number 1 button to select the FX Level  
3. Press the Assign button twice and the display appears something like this:  
Avail Link for: FX:Lvl  
1
OF%kHz  
FmsdB  
LINK CHANGED  
LINK CHANGED  
WAH TUBE  
LINK CHANGED  
GATE  
LINK CHANGED  
COMP  
EQ  
L/R OUTS  
2
US1ER9b  
FACTORY  
BANK  
#
L/R OUTS  
PAGE  
 5  
O F  
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RP21D User’s Guide  
Section Three - Advanced Topics  
4. The Display is telling you that the RP21D is ready to link the FX Level but that the link is turned off. Rotate the Data Wheel to turn the link  
on. The Display now looks something like this:  
1
2
3
4
FX:Lvl CC #  Min[  ]Max  
%kHz  
 OnmsdB   0  
%kHz  
%kHz  
OFF  
%kHz  
1
2
msdB 3  
msdB 4  
100msdB  
LINK CHANGED  
LINK CHANGED  
LINK CHANGED  
WAH TUBE  
LINK CHANGED  
GATE  
COMP  
EQ  
L/R OUTS  
2
FACTORY  
BANK  
US1ER9b  
#
L/R OUTS  
PAGE  
 5  
O F  
The Display is now telling you four things about the current assignment.  
1. This tells you the assignment is on, and that the Parameter that is assigned is the FX Level.  
2 . This is the Modifier that you are assigning to control the FX Level. In the Display shown above, the Modifer assignment is MIDI CC #1.  
The number 2 icon is telling you that you must press the number 2 button in order to access this parameter. You can then rotate the Data  
Wheel to select a different Modifier. Your Modifier choices are MIDI CC 1-127 and ChP (channel pressure), LFO1 and LFO2 (the Low  
Frequency Oscillators), Dy1 and Dy2 (the Dynamic Filters), or any footswirtch on the RP21D.  
3. This is the Minimum value that the FX Level will reach when the Modifier is at it’s minimum setting. The number 3 icon is indicating that  
you must press the number 3 button in order to access this parameter. You can then rotate the Data Wheel to change the Minimum value.  
4. This is the Maximum value that the FX Level will reach when the Modifier is at it’s maximum setting. The number 4 icon is indicating that  
you must press the number 4 button in order to access this parameter. You can then rotate the Data Wheel to change the Maximum value.  
Viewing, Changing, or Deleting Assignments  
When the Expression Pedal or Footswitches have been assigned to a parameter and you do not want to control that parameter any more, you  
must delete the assignment. To view the assignments that have been made to the Expression Pedal or Footswitches, press the Assign button  
twice. This will take you to a screen where you can view all parameters that have been assigned either to the Expression Pedal, or to the  
numbered Footswitches. The Display will look something like this:  
4
1
2
3
TubeD  FS #  Min   Max  
%kHz  
%kHz  
msdB  
%kHz  
F 6  
%kHz  
bypmo  
1
2
msdB 3  
sdB 4  
2
On  
 On    
msdB  
LINK CHANGED  
LINK CHANGED  
TUBE  
LINK  
LINK  
COMP  
WAH  
EQ  
GATE  
4
DIST  
EQ  
FACTORY  
BANK  
USER  
SEAMLESS  
DIGITAL  
#
CLIP  
19b  
L/R OUTS  
PAGE  
 5  
O F  
5
The Display is now telling you five things about the pedal assignments.  
1. This is the name of the assigned parameter, and the current status of the assignment. The number one icon is telling you that in order to  
access this parameter you must press the number one button. You can then rotate the Data Wheel to turn off, or delete the assignment.  
2. This is telling you where the assignment has been made. The number two icon is indicating that you must press the number two button in  
order to access this assignment. You can then rotate the Data Wheel to change the controller assignment. Your choices are Footswitches,  
Expression Pedal, Dynamic Filters, LFO’s, and MIDI controllers.  
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Section Three - Advanced Topics  
3. This is the minimum value that the parameter will change to. The number three icon is indicating that you must press the number three  
button to access the minimum value parameter. You can then rotate the Data Wheel to change the minimum value.  
4. This is the maximum value that the parameter will change to. The number four icon is indicating that you must press the number four  
button to access the maximum value parameter. You can then rotate the Data Wheel to change the maximum value.  
There are parenthesis in between the words Min and Max. These parenthesis will show the current value as it changes in real time.  
5. There are 19 pages of parameter control assignments that can be made. Each assignment is represented as one page. Using the Next and  
Previous Page buttons will allow you to view, change, or delete all assignments within the currently selected Program.  
Tuner  
The RP21D includes a chromatic Tuner with an adjust able tuning reference, and drop tunings. Access to the Tuner is accomplished by  
pressing and holding the Bank Down Switch. Once in the Tuner mode, the Display will look something like this:  
%kHz  
msdB  
%
LINK CHANGED  
LINK CHANGED  
GATE  
LINK CHANGED  
WAH  
TUBE  
DIST  
EQ  
EQ  
L/R OUTS  
FACTORY  
USER  
MIDI  
DIGITAL  
SOLO  
b
#
CLIP  
L/R OUTS  
The Display is now telling you four things about the Tuner.  
1. This is where the name of the note played will register. The question marks are an indication that no note is being played.  
2. This is the Tuning reference. The number three icon is indicating that you must press the number three button in order to access the  
Tuning reference. You can then rotate the Data Wheel to change the Tuning reference. The Tuning reference can be adjusted from A=427 to  
A=453 which equals 50 cents above and below the standard A=440 reference. Below the A=427 reference, you will also find drop Tunings.  
The available choices are A=G#, A=G, and A=F#.  
3. This is the Output Level while you are in the Tuner mode. The number 4 icon is indicating that you must press the number four button in  
order to access the Output Level parameter. You can then rotate the Data Wheel to change the Tuners Output Level  
4. This bar will light as an indication of how close you are to the note indicated in the Display. When only the center box and the arrow  
above the center box are lit, you are in tune. Boxes to the right of the center box indicate that you are sharp and need to tune down. Boxes  
to the left of the center box indicate that you are flat and need to tune up.  
Press any Footswitch to exit the tuner mode.  
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RP21D User’s Guide  
Section Four - Utilities  
Section Four - Utilities  
The Utility section of the RP21D is where you will find general assignments that affect the Outputs, Cabinet Emulator, MIDI Functions, Pedal  
Board Settings, Bank Naming, Factory Reset, and Pedal Calibration menus. To access the utility functions, press the utility button once. Then  
use the Next or Previous Page buttons to select the Utility menu that you wish to access. The Utility pages are as follows:  
Output Mode  
You can output the signal of your RP21D as either a Stereo or Mono signal.  
1. Press the Utility button and then press either the Next or Previous Page buttons until you reach page 1 of the Utilities. The display reads:  
Output:Mono        
1
%kHz  
  1  
%kHz  
%kHz  
msdB  
2
msdB 3  
msdB 4  
LINK CHANGED  
LINK CHANGED  
TUBE  
LINK CHANGED  
LINK CHANGED  
COMP  
WAH  
EQ  
GATE  
L/R OUTS  
L/R OUTS  
2
FACTORY  
BANK  
US1ER5b  
#
PAGE  
1
O F  
2. Pressing the number two button will access the Output parameter. You can then turn the Data Wheel to set your RP21D’s output to either a  
Stereo or Mono signal.  
Cabinet Emulation  
The Cabinet Emulator in the RP21D offers you two different choices: Local and Global. The Global setting will engage the Cabinet Emulator  
on all Programs. Each Program can have a different Cabinet Emulator which is assigned on page two of the Master Mix parameters. The  
Local setting will engage the cabinet emulator on individual Programs. The thing to consider when selecting between global or local mode is  
whether or not you want all of your sounds affected by this change. A good time to use Global mode is when you’re frequently playing in  
different venus (because each room always sounds different).  
The procedure for selecting either the Local or Global Cabinet emulation is as follows:  
1. Press the Utility button and then press either Next or Previous Page button until you reach page 2 of the Utilities. The display reads:  
Cabinet Emulator: Local  
%kHz  
%kHz  
msdB  
LINK CHANGED  
%kHz  
msdB  
1
2
3
msdB 4  
On  
LINK CHANGED  
LINK CHANGED  
TUBE  
LINK CHANGED  
GATE  
COMP  
WAH  
EQ  
EQ  
L/R OUTS  
2
DIST  
USER  
DIGITAL  
#
BANK  
PAGE  
 2  
O F15  
2. Access the Cabinet Emulator parameter by pressing the number four button. You can then rotate the Data Wheel to set the Cabinet  
Emulator to either Local On or Global On mode, or Global Off.  
MIDI Channels  
This option sets the MIDI Channel that the RP21D will respond to. This page sets the receive and transmit MIDI channels. The RP21D is  
capable of sending and receiving MIDI Program change and CC commands. MIDI channel settings include: Off, 1, through 16, and All.  
To change the MIDI channel assignment, do the following:  
1. Press the Utility button once. Use the Next or Previous Page buttons until you reach page 3 and the display reads:  
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Section Four - Utilities  
MIDI: RcvChnl   TransChnl  
%kHz  
  1msdB  
%kHz  
msdB 4  
  1  
LINK CHANGED  
%kHz  
msdB  
2
LINK CHANGED  
LINK CHANGED  
LINK CHANGED  
GATE  
COMP  
WAH  
TUBE  
EQ  
L/R OUTS  
2
FACTORY  
BANK  
USER  
#
L/R OUTS  
PAGE  
 3  
O F15Ł  
2. The number two icon indicates that you must press the number two button to access the MIDI Receive Channel. You can then rotate the  
Data Wheel to change the MIDI Receive Channel  
3. The number four icon indicates that you must press the number four button to access the MIDI Transmit Channel. You can then rotate the  
Data Wheel to change the MIDI Transmit Channel.  
Program Receive Map  
MIDI Program Receive Mapping allows you to “map” an incoming Program change command to access a Program number different from  
the actual received Program number. In other words, you can send the RP21D a MIDI Program change command of 48, but the RP21D  
would go to Program 67 (or any Program number that you map in for Program 48). This may seem confusing, but is extremely useful when  
you are using multiple MIDI devices chained together.  
To remap the incoming MIDI Programs, do the following:  
1. Press the Utility button once. Use the Next or Previous Page buttons until you reach page 4 and the display will read:  
Prg Rcv Map:MIDI= User  
%kHz  
%kHz  
msdB 4  
  1  
LINK CHANGED  
%kHz  
msdB  
 1  
2
msdB 3  
LINK CHANGED  
LINK CHANGED  
WAH TUBE  
LINK CHANGED  
GATE  
COMP  
EQ  
L/R OUTS  
2
US1ER5b  
FACTORY  
BANK  
#
L/R OUTS  
PAGE  
 4  
O F  
2. The number three icon is indicating that you must press the number three button in order to access the incoming MIDI Program number.  
You can then rotate the Data Wheel to select the MIDI Program 1 through 128 that you want to remap.  
3. The number four icon is indicating that you must press the number four button in order to access the RP21D Program that the MIDI  
Program will call up. You can then rotate the Data Wheel to select one of the RP21D’s 256 Programs that you wish to be called up when  
the RP21D receives the MIDI Program shown next to the number three icon.  
Program Transmit Map  
MIDI Program Transmit Mapping allows you to “map” an outgoing Program change command to access a Program number different from  
the actual Program number selected on the RP21D. In other words, you can send a MIDI Program change command of 48, even though  
the Program selected on the RP21D was 67 (or any Program number that you map). This may seem confusing, but is extremely useful when  
you are using multiple MIDI devices chained together.  
To remap the outgoing MIDI Programs do the following:  
1. Press the Utility button once. Use the Next or Previous Page buttons until you reach page 5 and the display will read:  
PrgTrans Map:User=MIDI  
2
%kHz  
%kHz  
%kHz  
msdB  
On  
 1  
msdB 3  
msdB 4  
 1  
LINK CHANGED  
LINK CHANGED  
WAH TUBE  
LINK CHANGED  
GATE  
LINK CHANGED  
COMP  
EQ  
L/R OUTS  
2
FACTORY  
BANK  
USER  
#
L/R OUTS  
PAGE  
 5  
O F15Ł  
2. The number one icon is indicating that you must press the number one button in order to access the transmit MIDI Program change  
status. You can then rotate the Data Wheel to select whether or not you want the RP21D to send Program changes out.  
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Section Four - Utilities  
3. The number three icon is indicating that you must press the number three button in order to access the outgoing MIDI Program number.  
You can then rotate the Data Wheel to select MIDI Program 1 through 128 that you want to send from the RP21D when you select the  
Program shown next to the number four icon.  
4. The number four icon is indicating that you must press the number four button in order to access the RP21D Program that you intend to  
remap. You can then rotate the Data Wheel to select one of the RP21D’s 256 Programs.  
SysEx Channel and MIDI Merge  
An easy way to think of the System Exclusive Device Channel option is to separate System Exclusive data from normal MIDI data. Each type of  
data has its own group of 16 channels upon which data can be transmitted. This feature will also allow individual remote control of more  
than one RP21D with SysEx commands.  
From the Factory and in most situations, the SysEx channel is set at Channel 1.  
Normal MIDI data, like Program Changes, MIDI Volume, Modulation, etc. is transmitted and received on the MIDI channel designated by the  
setting of MIDI RECEIVE CHANNEL. SysEx data, on the other hand, is transmitted and received on the SysEx channel designated by the setting  
of SYSEX DEVICE CHANNEL.  
This setup frees up your regular MIDI channels for other control options, and gives you the flexibility to request SysEx data from only the  
devices you want in your setup, whether they share the same MIDI channel or not.  
MIDI Merging allows incoming MIDI data to be Merged with any MIDI data generated by your RP21D before being sent to the MIDI  
Out/Thru port.  
To change the SysEx Device Channel number, or turn the MIDI Merge function on or off, do the following:  
1. Press the Utility button once. Use the Next or Previous Page buttons until yo reach page 6. The display reads:  
SysEx Channel MIDI Merge  
%kHz  
%kHz  
msdB  
  1  
2
msdB 3  
%kHBz 4  
msd  OFF  
LINK CHANGED LINK CHANGED  
GATE  
LINK CHANGED  
LINK CHANGED  
WAH TUBE  
COMP  
EQ  
L/R OUTS  
2
FACTORY  
BANK  
USER  
#
b
L/R OUTS  
PAGE  
 6  
O F15Ł  
2. The number two icon is indicating that you must press the number two button in order to access the MIDI SysEx Channel. You can then  
rotate the Data Wheel to select the SysEx Channel.  
3. The number four icon is indicating that you must press the number four button in order to access the on/off parameter for the MIDI  
Merge function. You can then rotate the Data Wheel to select between on or off for the MIDI Merge.  
SysEx Dump  
Bulk Dump: This option allows you to dump all resident Programs in memory to an external recording device, like a patch librarian,  
computer, or sequencer for backup, storage, or organization. This option dumps all Programs simultaneously. It does not send any RP21D  
Valve system information, such as SysEx Device channel or Programs maps.  
System Dump: This is the option to use for dumping system data to an external MIDI or SysEx recording device. All the item settings in the  
Utility menu are sent using this option. Programs are not included in this dump.  
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RP21D User’s Guide  
Section Four - Utilities  
To Perform either a Bulk Dump or a System Dump, do the following:  
1. Press the Utility button once. Use the Next or Previous Page buttons until you reach page 7. The Display reads:  
SysExDump:  Bulk  System  
%kHz  
%kHz  
msdB  
Y  
es%kHz yesmsdB  
1
2
3
msdB 4  
LINK CHANGED LINK CHANGED  
GATE  
LINK CHANGED  
LINK CHANGED  
TUBE  
COMP  
WAH  
EQ  
L/R OUTS  
2
US1ER5b  
DIGITAL  
#
BANK  
PAGE  
 7  
O F  
2. The number three icon is indicating that you must press the number three button in order to access the Bulk Dump function. You can  
then rotate the Data Wheel to initiate the Bulk Dump. You must have the MIDI out of the RP21D connected to a MIDI recorder and the  
MIDI recorder must be set to record before initiating the dump. The Display will briefly read ” Midi Bulk Dump” followed by the  
number ber of bytes it is sending. It will then return to the SysEx Dump page.  
3. The number four icon is indicating that you must press the number four button in order to access the System Dump function. You can  
then rotate the Data Wheel to initiate the System Dump. You must have the MIDI out of the RP21D connected to a MIDI recorder and the  
MIDI recorder must be set to record before initiating the dump. The Display will briefly read  
” Sending System Dump.” It will then return to the SysEx Dump page.  
Program Dumps  
The Program Dump allows you to dump individual RP21D Programs to another RP21D or external MIDI devices like patch librarians,  
computers, or sequencers for backup, storage, or organization. This option allows you to select the Program to be dumped, and, when  
dumping to another RP21D, the Program location where you want the Program dumped.  
To initiate an individual patch dump from the RP21D, do the following:  
1. Press the Utility button once. Use the Next or Previous Page buttons until you reach page 8. The display reads:  
SysExDump UserPrg≥PrgNum  
%kHz  
%kHz  
  1  
Ye%kHz  
smsdB  
1
2
msdB 3  
msdB 4  
  1  
LINK CHANGED  
LINK CHANGED  
LINK CHANGED  
WAH TUBE  
LINK CHANGED  
GATE  
COMP  
EQ  
L/R OUTS  
2
US1ER5b  
FACTORY  
BANK  
#
L/R OUTS  
PAGE  
 8  
O F  
2. Press the number three button and then rotate the Data Wheel to select the Program number you want to dump.  
3. Press the number four button and then rotate the Data Wheel to select the Program location where you want the Program dumped.  
4. To initiate the dump, press the number one button and then rotate the Data Wheel. The Information line briefly reads ”Sending Program  
Dump.” It will then return to the SysEx Dump Page.  
User Default Dump  
The User Default Dump allows you to dump individual RP21D User defaults to another RP21D or external MIDI devices like patch librarians,  
computers, or sequencers for backup, storage, or organization. This option allows you to select the default to be dumped.  
To initiate an individual Default dump from the RP21D, do the following:  
1. Press the Utility button once. Use the Next or Previous Page buttons until you reach page 9. The display reads:  
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Section Four - Utilities  
UsrDflt:Preamp  User 1  
%kHz  
%kHz  
msdB 4  
U 1  
LINK CHANGED  
Ye%kHz  
-
sd  
-
1
2
smsdB   -m  
B 3  
EQ  
LINK CHANGED  
LINK CHANGED  
WAH TUBE  
LINK CHANGED  
GATE  
COMP  
L/R OUTS  
2
FACTORY  
US1ER5b  
#
PAGE  
BANK 9  
O F  
2. Press the number two button and rotate the Data Wheel to select the Effect Module whose Default you want to dump.  
3. Press the number four button and rotate the Data Wheel to select the User Default you want to dump.  
4. To initiate the dump, press the number one button and rotate the Data Wheel. The Display briefly reads “ Sending User Default.” It will  
then return to the User Default Dump Page.  
Assigning a MIDI CC to Pedals  
This function allows you to send MIDI Continuous Controller (CC) information out the MIDI port while the footswitch still maintains its  
ability to control a parameter within the RP21D. When assigned to a footswitch, the switch will toggle between CC values 0 or 127. CC  
numbers 0 through 127 are available. This function is only available for footswitches that have been programmed to toggle effects on and off  
within the RP21D. To assign the MIDI CC number which will be transmitted from the applicable footswitches, do the following:  
1. Press the Utility button once, then use the Next or Previous Page buttons until you reach page 10 of the utility menu. The Display reads:  
Pdls:Banks FS=Prg CCTran  
1
2
3
4
 1  
 1  
---  
LINK CHANGED  
LINK CHANGED  
LINK CHANGED  
GATE  
LINK CHANGED  
COMP  
WAH  
TUBE  
EQ  
EQ  
L/R OUTS  
2
DIST  
FACTORY  
US1ER5b  
DIGITAL  
#
CLIP  
L/R OUTS  
 10  
PAGE OF  
2. Press the number two button and turn the Data Wheel to select the Bank which will be used to transmit the CC commands.  
3. Press the number three button and turn the Data Wheel to select the footswitch that you wish to assign a CC number to.  
4. Press the number four button and turn the Data Wheel to select the CC number you wish to transmit from the footswitch.  
Assigning a MIDI CC to the Expression Pedal  
The Expression Pedal can act as a MIDI continuous controller for external MIDI devices which you have connected to the MIDI out port of  
the RP21D. You can select any MIDI CC number between 0 and 127 that you want to transmit CC information on. The procedure for  
assigning a MIDI CC number to the Expression Pedal is as follows:  
1. Press the Utility button once. Use the Next or Previous Page buttons until you reach page 11 of the utility menu. The Display reads:  
Expression Send:  CC#  
1
2
3
4
 1  
 1  
OFF  
LINK CHANGED  
LINK CHANGED  
LINK CHANGED  
GATE  
LINK CHANGED  
COMP  
WAH  
TUBE  
EQ  
EQ  
L/R OUTS  
2
DIST  
FACTORY  
US1ER5b  
DIGITAL  
#
CLIP  
L/R OUTS  
 11  
PAGE OF  
2. Press the number four button and turn the Data Wheel to select the CC number that you wish to transmit from the Expression Pedal.  
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Section Four - Utilities  
Bank Names  
You can assign custom names to every Bank in the RP21D. The Procedure for naming your Banks is as follows:  
1. Press the Utility button once. Use the Next or Previous Page buttons until you reach page 12 of the utilities. The Display reads:  
Bank: Showcase    Name?  
1
2
3
4
 1  
 1  
Yes  
LINK CHANGED  
LINK CHANGED  
LINK CHANGED  
GATE  
LINK CHANGED  
COMP  
WAH  
TUBE  
EQ  
EQ  
L/R OUTS  
2
DIST  
FACTORY  
US1ER5b  
DIGITAL  
#
CLIP  
L/R OUTS  
 12  
PAGE OF  
2. Press the number two button and rotate the Data Wheel to select the Bank that you wish to rename.  
3. Press the number four button and rotate the Data Wheel. This will take you to the Name menu. Please see page 47 for Naming  
instructions.  
Volume Pedal Update  
The RP21D has the ability to update the position of the expression controller pedal when it is assigned to Volume within any program. This  
means that the volume pedals position will correspond to the volume setting after changing the ProgramTo enable this feature, the procedure  
is as follows:  
1. Press the Utility button once. Use the Next or Previous Page buttons until you reach page 16. This display should look like this:  
Vol Pedal Update  
 Off  
1
2
3
4
LINK CHANGED  
d
 n1  
 1  
LINK CHANGED  
LINK CHANGED  
LINK CHANGED  
GATE  
COMP  
WAH  
TUBE  
EQ  
EQ  
L/R OUTS  
L/R OUTS  
2
DIST  
FACTORY  
US1ER5b  
DIGITAL  
#
CLIP  
 13  
PAGE OF  
2. To enable this Volume Pedal update rotate the Data Wheel until the display says On.  
Now in any Program where the expression pedal is assigned to the Volume parameter, the expression pedal’s current position will be  
updated when that preset is selected.  
Factory Reset  
This function resets the RP21D to its original factory settings. This procedure will erase all custom user Programs, Defaults and Utility  
settings.  
ATTENTION: This procedure will erase all user settings in the RP21D. Be sure you want to erase the memory and start fresh  
before continuing with this procedure.  
To perform a Factory Reset, do the following:  
1. Press the Utility button once. Use the Next or Previous Page buttons until you reach page13 of the utility menu. The Display reads:  
Factory Reset?  
Yes  
1
2
3
4
LINK CHANGED  
 1  
 1  
LINK CHANGED  
LINK CHANGED  
LINK CHANGED  
GATE  
COMP  
WAH  
TUBE  
EQ  
EQ  
L/R OUTS  
L/R OUTS  
2
DIST  
FACTORY  
US1ER5b  
DIGITAL  
#
CLIP  
 14  
PAGE OF  
2. To initiate the Reset, press the number one button. The Display reads:  
59  
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RP21D User’s Guide  
Section Four - Utilities  
Are you sure 3 ?  
1
2
4
no  
LINK CHANGED  
 1  
 Y1es  
LINK CHANGED  
LINK CHANGED  
LINK CHANGED  
COMP  
WAH  
TUBE  
EQ  
GATE  
L/R OUTS  
L/R OUTS  
2
FACTORY  
DIST  
EQ  
US1ER5b  
DIGITAL  
#
CLIP  
 14  
PAGE OF  
3. This is your last chance to change your mind. If you want to abort the Reset procedure, press the number four button. If you are sure that  
you want to reset all user settings, press the number three button. The display will briefly show “Resetting...” and take you to the Pedal  
Calibration menu. See the following Utility menu for Pedal Calibration instructions.  
Recalibrating the Expression Pedal  
Occasionally, you will need to recalibrate the Expression Pedal on the RP21D. This will be indicated when the Expression Pedal does not  
adjust its assigned parameter to the full minimum and maximum programmed values. You will also have to recalibrate the pedal after  
performing a Factory Reset procedure. The procedure for recalibrating the Expression Pedal is as follows:  
1. Press the Utility button once. Use the Next and Previous Page buttons until you reach page 14. The Display reads:  
Recalibrate Pedal ?  
1
2
3
4
Yes  
 1  
 1  
LINK CHANGED  
LINK CHANGED  
LINK CHANGED  
GATE  
LINK CHANGED  
COMP  
WAH  
TUBE  
EQ  
EQ  
L/R OUTS  
L/R OUTS  
2
DIST  
FACTORY  
US1ER5b  
DIGITAL  
#
CLIP  
 15  
PAGE OF  
2. To initiate the Pedal recalibration, press the number one button. The Display reads:  
Push pdl forward,press 1  
1
2
3
4
UP  
 1  
 1  
LINK CHANGED  
LINK CHANGED  
LINK CHANGED  
GATE  
LINK CHANGED  
COMP  
WAH  
TUBE  
EQ  
EQ  
L/R OUTS  
2
DIST  
FACTORY  
US1ER5b  
DIGITAL  
#
CLIP  
L/R OUTS  
 15  
PAGE OF  
3. At this point, rock the Expression Pedal all the way forward (toe down) and press the number one button once. The Display now reads:  
Push pedal back, press 2  
1
2
3
4
d
 n1  
 1  
LINK CHANGED  
LINK CHANGED  
LINK CHANGED  
GATE  
LINK CHANGED  
COMP  
WAH  
TUBE  
EQ  
EQ  
L/R OUTS  
2
DIST  
FACTORY  
US1ER5b  
DIGITAL  
#
CLIP  
L/R OUTS  
 15  
PAGE OF  
4. Rock the Expression Pedal all the way back (toe up) and press the number two button. The Display will return to the start of the  
Recalibrate Pedal menu.  
You may exit the Utility menu at any time by pressing the Program button.  
60  
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RP21D User’s Guide  
Section Five - Appendix  
Section Five - Appendix  
RP21D Factory Program List  
Showcase  
Modern/Alternative  
96.  
97.  
98.  
99.  
Just Riffin’  
Do The Time Warp Again  
Flangey Triplet  
Super Clean  
Edge of the Earth  
RIP In  
Schwankin  
Wa-Hammy  
Copy Cat  
Feel It  
Kerrang  
Wah-T  
What The??  
1.  
2.  
3.  
4.  
Dry Saturated Tube  
Series Chorus/Detune  
Warm Sweet Solo  
Phaser in Space  
Power Wah  
51.  
52.  
53.  
Clean Pong Phase  
Panning Wah  
Raw Feeley  
54.  
Get Da Funk  
100.  
101.  
102.  
103.  
104.  
105.  
106.  
107.  
108.  
109.  
110.  
111.  
112.  
113.  
114.  
115.  
116.  
117.  
118.  
119.  
120.  
121.  
122.  
123.  
124.  
125.  
126.  
127.  
128.  
5.  
55.  
Whammy Child  
Signature  
Studio  
56.  
57.  
6.  
Cliff Notes of Dover  
Huge Chorus/Delay  
Hollywood Solo  
Power Stack  
7.  
Run Like Heck  
8.  
9.  
Big Band Rockabilly  
Live Strikes  
58.  
59.  
60.  
Compressed Mod/Delay  
Bluish Lead  
10.  
Angus in the House  
Pseudo Seamless  
Vintage  
61.  
11.  
Clean Funk}}{{Big Solo  
Trem-O-Surf  
Mello Yella  
Dragster  
Deluxe  
D-Tone  
12.  
13.  
14.  
Dirt Phase}}{{EasternDly  
Ping Pong Clean}}{{Dirty  
Lead Over Chord  
62.  
Fuzztronic  
63.  
64.  
Rockin’ Analog Delay  
Electric Sitar  
15.  
Seamless Delay  
65.  
‘70’s Direct Fuzz  
Phaso The Clown  
Chord Sweep `n Pan  
Guitarists in the Myst  
Planetarium  
Dirty Echos  
Cheese Farmer  
Hurt Me Plenty  
Valhalla Solo  
Big Bad Rhythm  
Every Breath You Fake  
Foxy Mama  
Lemonlite  
Morph  
16.  
17.  
Clean  
66.  
Clean Chorus>>DistOctav  
Slappy Pan>>ThrashPhase  
Meta-Morph Effects  
Crisp Clean  
67.  
Warm Panner  
18.  
68.  
69.  
70.  
Clean Thick Detune/Delay  
Clean Mod-Delay  
Phase w/Moving Delay  
19.  
20.  
Clean Chorus>>12 String  
Octave Thump>>Phase Pan  
Dual/Ster Preamp  
Jazz/Fusion  
21.  
22.  
23.  
24.  
25.  
L)Tube R)Fuzz  
Clean/Crunch Pong  
L)Dirt R)Clean  
Panning Preamp Solo  
Dirty Clean Squeeze  
71.  
72.  
73.  
74.  
75.  
Classic Jazz Room  
Progressive Solo  
Huge Chorus Swell  
Modern Fusion Solo  
Jazzy Chorus  
2 Preamps At Once  
Rhythm Dude  
2-Tone  
Dry Preamp 1  
For Acoustic  
26.  
27.  
28.  
29.  
30.  
Warm Rhythm  
Dual Tone  
Bright Twin  
Custom British Stack  
Rocket Mang  
76.  
77.  
78.  
79.  
80.  
New Age Acoustic  
Simulated 12 String  
Chorus/Delay w/PEQ  
Acoustic Phase/Panner  
Stereo Detune/Reverb  
Bright Spank  
Dry Preamp 2  
Dynamic Effects  
31.  
32.  
33.  
34.  
Death Metal Scoop  
81.  
82.  
83.  
84.  
85.  
Ducking Delay Solo  
Light Touch Chorus  
DynoWah  
Schizo Phase  
Strum and Wait  
Smooth Solo  
Super Fuzz  
Rock Tube  
Tube Solo  
35.  
Blues  
36.  
37.  
38.  
39.  
Sound On Sound  
Texas Blues  
Sad Ol’ Slide (ExpPdl)  
Big Blues Solo  
Riviera Pair O’ Dice  
Cannonball Shuffle  
86.  
87.  
88.  
89.  
90.  
Sound on Sound 1>4>5  
Sound on Sound Jam  
Space Chord  
Wacko Whammy  
Guitar Organ  
40.  
Country  
41.  
42.  
43.  
44.  
Special FX  
Kentucky Fried Picken  
Desert Campfire  
Pedal Steel  
Dirty Lil’ Ditty  
Harmony (D Mixolydian)  
91.  
92.  
93.  
94.  
95.  
Hold That Note  
Hypnotic Phase  
60’s Sci-Fi-Movie  
Look, Goodzilla!!  
Auto Morph  
45.  
Metal  
46.  
47.  
Moshin’ Detune/Delay  
2-Tone L/R Grinder  
Flangey Stack  
48.  
49.  
Clean Ballad  
50.  
Pedal Phase to the Metal  
61  
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RP21D User’s Guide  
Section Five - Appendix  
Specifications  
Input Section  
Connector:  
1/4” Unbalanced  
Nominal Value: -8 dBu  
Maximum Level: +10 dBu  
Impedance:  
470 ohms  
Output Section  
Connector:  
(2) 1/4” TRS Impedance Balanced  
Nominal Level: +4 dBu  
Maximum Level: +18 dBu  
Impedance:  
50 ohms  
Digital Section  
A/D Converter: 20 bit 128x Oversampled  
D/A Converter: 20 bit 128x Oversampled  
Sampling Rate: 44.1kHz.  
Output:  
S/PDIF  
DSP Section  
Architecture:  
Static-Dynamic Instruction Set Computer (S-DISC II™)  
24 bits (144.5 dB)  
Digital Signal Path Width:  
Internal Data Path:  
48 bits (289 dB)  
Dynamic Delay Memory:  
Static Delay Memory:  
Data ALU Processing:  
Address ALU Processing:  
Multiplier Size:  
256k x 24 bits (5.94 seconds)  
256 24-bit registers (6.55 milliseconds)  
10.0 MIPS  
15.0 MIPS  
24 bits x 24 bits  
General  
Frequency Response:  
20 Hz to 20 kHz +0, -3 dB  
S/N Ratio:  
Greater than 90 dB: ref= max signal, 22 kHz measurement bandwidth  
THD:  
Less than 0.04% (1 kHz)  
Tube:  
12AX7  
Tube Plate Voltage:  
Factory Programs:  
User Programs:  
Dimensions:  
Net Weight:  
145 Volts  
128  
128  
24” W x 8.25” D x 2.25” H  
12 lbs.  
Shipping Weight:  
13.5 lbs.  
62  
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RP21D User’s Guide  
Section Five - Appendix  
Function...  
Default  
Transmitted  
Recognized  
Remarks  
Basic  
Channel  
X
X
1-16  
1-16  
Memorized  
Memorized  
Channel  
Default  
Messages  
Altered  
X
X
N/A  
Mode 2, Mode 4  
Mode 2, Mode 4  
X
Mode  
Note  
Number  
True Voice  
Note ON  
X
X
N/A  
X
X
X
X
X
X
Velocity  
Note OFF  
X
After  
Touch  
Key's  
Ch's  
X
X
X
X
X
O
Pitch Bender  
X
X
X
Control  
Change  
O
1*  
Preset  
Change  
X
N/A  
0
0-127  
2*  
True #  
System Exclusive  
System  
O
X
O
See SysEx (see appendix)  
:Song Pos  
:Song Sel  
:Tune  
X
X
X
Common  
System  
X
:Clock  
X
X
X
X
Real Time  
:Commands  
Aux  
Mes-  
sages  
:Local ON/OFF  
:All Notes Off  
:Active Sense  
:Reset  
X
X
X
X
X
X
X
X
Notes  
1* Each Parameter can be linked to any control change. These  
assignment tables are stored in memory.  
2* For Preset map 1-128 (Preset Change can be mapped to Factory  
Presets, User Presets, or Bypass function).  
Mode 1 : OMNI ON, POLY  
Mode 3 : OMNI OFF, POLY  
Mode 2 : OMNI ON, MONO  
Mode 4 : OMNI OFF, MONO  
O : Yes  
X : No  
63  
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8760 S. Sandy Parkway  
Sandy, Utah 84070  
Telephone 801-566-8800  
Fax 801-566-7005  
International Distribution:  
8760 S. Sandy Parkway  
Sandy, Utah 84070, USA  
Telephone 801-568-7638  
Fax 801-568-7642  
DigiTech, RP21D, and S-DISC are trademarks  
of the Harman Music Group Incorporated  
Copyright 1999  
the Harman Music Group Incorporated  
Printed in USA 3/99  
Manufactured in the USA  
RP21D 18-6319  
Please Visit DigiTech on the World Wide Web at  
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