Tech 21 Stereo Amplifier PSA 11 User Manual

WARNINGS  
•Attempting to repair this unit is not recommended and may void its warranty.  
•Missing or altered serial numbers automatically void the warranty. For your own protection,  
be sure that the serial number labels on the unit’s back panel and exterior box are intact.  
ONE-YEAR LIMITED WARRANTY  
Manufacturer warrants unit to be free from defects in materials and workmanship for a period  
of one (1) year from the date of purchase to the original purchaser and is not transferable.  
This warranty does not include damage resulting from accident, misuse, abuse, alteration, or  
incorrect current or voltage. If unit becomes defective within warranty period, Tech 21 will  
elect to repair or replace it free of charge. After warranty period expires, manufacturer will  
repair defective unit for a fee.  
PROOF OF PURCHASE IS REQUIRED FOR ANY REPAIR  
For residents of the U.S. and Canada, please call Tech 21’s main headquarters for shipping  
instructions and a Return Authorization Number. Tech 21 will not accept packages without  
prior authorization, pre-paid freight (UPS preferred), and proper insurance.  
FOR PERSONAL ASSISTANCE & INQUIRIES  
Contact Tech 21 weekdays from 9:00 AM to 5:00 PM, Eastern Standard Time.  
MADE IN THE U.S.A.  
Fill in the following information for future reference:  
Serial Number  
Dealer’s Name  
___________________________________  
___________________________________  
Dealer’s Address ___________________________________  
Date of Purchase ___________________________________  
T: 973-777-6996  
© 2005 Tech 21 USA, Inc.  
U S E R ’ S G U I D E  
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14. Unplug unit during lightning storms or when unused for long periods of  
time.  
IMPORTANT SAFETY INSTRUCTIONS.  
READ AND SAVE THESE INSTRUCTIONS.  
HEED ALL WARNINGS.  
15. This unit must be earth grounded. To reduce the risk of electric shock, NEVER  
remove or otherwise attempt to defeat the ground pin of the power cord. If the provided  
plug does not fit into your outlet, consult an electrician for replacement of the obsolete  
outlet.  
This symbol, wherever it appears, alerts the user to the presence of uninsulated dangerous  
voltage within the product’s enclosure that may be of sufficient magnitude to constitute a risk of  
electric shock to persons.  
This symbol, wherever it appears, alerts the user to important operating and maintenance  
instructions in the accompanying literature. Read the manual.  
WARNING: To avoid the risk of fire, electric shock or injury, do not expose this unit to  
rain or moisture. Do not remove metal covering from chassis parts. Doing so exposes  
extremely dangerous high voltages. There are no user-serviceable parts inside. Hazard-  
ous voltages are present inside the chassis. Refer all servicing to qualified personnel.  
This unit is powered by potentially hazardous voltage. Therefore, observe  
the following safety precautions:  
1. Read and follow all instructions before using  
product.  
CAUTION  
RISK OF ELECTRICAL SHOCK  
CAUTION: Never modify the power cord. If original power cord becomes damaged,  
frayed, or has exposed wires, replace immediately with same rating and gauge, or high-  
er. Replacements are commercially available or you can contact Tech 21 directly.  
DO NOT OPEN  
2. Do not use product near water (such as near  
CAUTION: TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO  
NOT REMOVE COVER. NO USER-SERVICEABLE PARTS INSIDE.  
a bathtub, washbowl, kitchen sink, swimming  
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.  
pool, in a wet basement, etc.).  
WARNING: Attempting to repair this unit is not recommended and may void its  
warranty. NOTE: In the U.S. and Canada, servicing is performed at factory only. In  
other countries, please refer repairs to the local Tech 21 authorized distributor.  
3. Unit should be located so that its location or  
position does not impede the flow of air through  
the ventilation openings.  
ATTENTION  
RISQUE D'ELECTROCUTION  
NE PAS OUVRIR  
ATTENTION: POUR REDUIRE LES RISQUES D'ELECTROCUTION  
NE PAS ENLEVER LE COUVERCLE. AUCUNE PIECE INTERNE  
N'EST REPARABLE PAR L'UTILISATEUR. POUR TOUTE  
FUSE  
4. Product should be located away from heat  
sources such as radiators, heat registers, or  
other products, including amplifiers, that produce  
heat.  
REPARATION, S'ADRESSER A UN TECHNICIEN QUALIFIE.  
Fuse holder located inside A/C cord receptacle. You must remove power  
cord to change fuse. Replace with similar type & same value: F 0.5A L.  
VORSICHT  
ELEKTRISCHE SCHLAGGEFAHR  
NICHT OFFNEN  
QUICK START INSTRUCTIONS  
Here’s how you can get your SansAmp PSA up and running before you read the entire manual.  
5. Product should be connected to a power sup-  
ply only of the type described in the operating  
instructions or as marked on the product.  
VORSICHT: ZUR MINIMIERUNG ELEKTRISCHER SCHLAGGE-  
FAHR NICHT DEN DECKEL ABNEHMEN. INTERNE TEILE KONNEN  
NICHT VOM BENUTZER GEWARTET WERDEN. DIE WARTUNG  
IST QUALIFIZIERTEM WARTUNGSPERSONAL ZU UBERLASSEN.  
1. Plug your instrument into the front-panel Input jack (on the left side).  
2. Plug one end of a cord into the rear panel’s left Output jack, and plug the other end into the  
input of a mixer or an amp or power amp.  
6. Protect the power cord from being walked on or pinched particularly at plugs, con-  
venience receptacles, and the point where they exit from the unit.  
7. Do not allow objects or liquids to penetrate the enclosure through openings.  
8. During heavy use, chassis may get hot to the touch. Handle with care.  
9. Protect unit from strong impact.  
3. Attach the AC cord and plug into a wall socket. Turn on the SansAmp PSA.  
4. Turn on your amp or mixer. (If the mixer is patched into a monitor or recorder setup, make sure  
the power amp and speakers are turned on, too.)  
5. Turn up the input level on your amp or mixer. If the signal is too “hot,” resulting in unwanted  
distortion, or too weak, check the amp’s or mixer’s input control. Also check the Trim control on  
the front of the SansAmp PSA and Output Level Switch on the back of the SansAmp PSA.  
6. Play your favorite riff or chord changes, and you should hear a sound coming through your system.  
If not, recheck your connections, and make sure your guitar’s volume control is turned up.  
7. Select a program by pushing either the Up or Down buttons. The unit is shipped with the first  
49 programs (01-49) as factory presets (refer to the list on page 22). Programs 51-99 are dupli-  
cates of presets 01-49. From 100-127, all knobs are preset neutral at 12 o’clock. Programs 00  
and 50 are permanent bypass settings. For more details, refer to “Programming” on page 8.  
10. Unplug product before cleaning. Never spray liquid cleaners into the amp: wipe  
with a clean, lint-free cloth to remove dirt and film.  
11. Only use attachments/accessories specified by the manufacturer.  
12. This product should be used only with a cart or stand that is recom-  
mended by the manufacturer. When a cart is used, use caution when  
moving the cart/product combination to avoid injury from tipping over.  
13. Amplifiers may be capable of producing high volume levels that  
could cause permanent hearing loss or damage, if the exposure to such levels is pro-  
longed. Such damage is progressive and irreversible! If you experience any hearing loss  
or ringing in the ears, consult an audiologist.  
If you need further guidance in setting up your SansAmp PSA, check out the diagrams and infor-  
mation on pages 13 through 15.  
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TECH 21, THE COMPANY  
FRONT PANEL  
Tech 21 introduced the SansAmp™ Classic (the original pedal design) in 1989. Our proprietary  
circuitry pioneered Tube Amplifier Emulation in professional applications for recording direct  
and performing live, and created an entirely new category of signal processing. While there have  
since been many entries into this niche, SansAmp continues to maintain its reputation as the  
industry standard.  
INTRODUCTION  
The SansAmp PSA gives you access to specific tone-shaping characteristics within the tube  
amplifier sound spectrum. Controls of this nature are traditionally inaccessible on stock amps.  
Adjustments like these are ordinarily achieved only by permanent professional modification.  
Engineered for the studio and stage, SansAmp delivers consistent quality sound. Players, engi-  
neers, and producers can obtain a wide spectrum of warm, natural tube amplifier sounds from  
one convenient unit. Available in various formats and models, each SansAmp is suitable for any  
music style, from jazz to metal, and can be used with a variety of instruments --guitar, bass, key-  
boards, samplers, even sax and vocals.  
Tonality, for instance, can be adjusted in a variety of ways. The individual Character Controls,  
labeled Buzz, Punch, Crunch, and Drive, offer different results than the post EQ section (the  
controls labeled Low and High).  
The SansAmp Classic was conceived and developed by a guitarist who possesses the unusual  
combination of a trained ear and electronics expertise. The technology is designed in the true  
tradition of tube amplifiers in their totality—with a pre-amp stage and an output stage. It incor-  
porates the harmonics and sweet overdrive characteristics unique to tube amplifiers. SansAmp  
captures these characteristics, and does so even at low volume levels.  
Gain structure can be adjusted via the Pre-Amp control, which results in a different kind of  
overdrive than the Drive control. Additionally, Buzz, Punch, and Crunch each affect the gain  
structure within specific frequency bands.  
SansAmp gives you the most coveted trademarked sounds and the flexibility to refine and rede-  
fine your own. Each model responds to and interacts with the dynamics of your individual play-  
ing style, your individual musical style, and your instrument’s individual tonality. All of these  
factors play an important role in the resulting sound, which will ultimately be yours alone.  
As you experiment and become familiar with the controls’ interrelationships, you’ll be able to  
customize your own sounds and store them in the SansAmp PSA’s memory.  
INPUT JACK  
This 1/4" Input features an impedance buffer so that the tone from a guitar’s or bass’ pickups, or the  
signal from other instruments, reaches the SansAmp PSA without degradation. A second input jack  
is located on the rear panel. Note: plugging into the front-panel Input jack overrides and discon-  
nects the rear-panel jack. So you can set up your SansAmp PSA as a permanent part of a rack or  
patch-bay setup, with its usual input source plugged into the rear-panel jack. If you want to plug  
straight into the SansAmp PSA, bypassing other parts of the system, use the front Input.  
SANSAMP PSA-1.1, AN OVERVIEW  
SansAmp PSA-1.1 maintains its superior tone with our exclusive, 100% analog circuitry. Only  
the programming and memory sections are digital. The results are easy to hear: punchy, respon-  
sive, powerful sounds that bring out the best in any instrument.  
The SansAmp PSA can be used for various applications. In the studio, you can record direct,  
enhance existing tracks in mixdowns, as well as add interesting touches to any instrument. Live,  
it can be used as a pre-amp direct into a power amp with guitar or bass speaker cabinets, as a  
“monster direct box” to a P.A. system, (or both simultaneously), and as an outboard processor.  
PRE-AMP  
Arrow indicates  
unity-gain point  
This is the input sensitivity control. The Pre-Amp control adjusts  
The SansAmp PSA features MIDI capability for calling up programs and storing program data.  
There are 49 factory presets and 77 memory locations to store your own custom sounds, plus two  
bypass programs. When you switch between programs, there is no lag time, or “cutting out.”  
The controls on the SansAmp PSA work very much like those found on a sophisticated amp.  
You don’t need special training or a degree in physics to operate your unit. Storing and recalling  
programs is simple: set your tones and push the Save button. You just turn a knob and hear the  
difference immediately --in real time. There are 256 incremental steps in the rotation of each  
control, so increases and decreases occur in a smooth, gradual, linear fashion.  
the signal level going into the input section of the SansAmp PSA.  
The arrow indicates the unity-gain point (that is, no boost or cut).  
When clean sounds are desired with the use of a hot-output instru-  
ment, decrease from the unity-gain point. Increasing the position of  
the Pre-Amp control produces an effect similar to putting a clean  
booster pedal into the input of a tube amp.  
AFTER BURNER ZONE: The area where a low-cut/hi-boost function is activated. This gives  
more definition to individual notes when using high gain sounds. If buzzier, fuzzier sounds are  
desired, increase the gain by using the Drive control and set the Pre-Amp control outside the  
After Burner zone.  
The SansAmp PSA is designed to provide you with the flexibility to find almost any conceiv-  
able tonal personality within the tube amplifier sound spectrum.  
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To achieve the least amount of noise, we recommend keeping the Pre-Amp knob at unity gain  
or higher. Experiment with the interplay between your instrument and the SansAmp PSA.  
LOW AND HIGH  
These active low-end tone controls are specially tuned for maximum musicality when used to  
EQ instruments. Boost or cut 12dB from its center point indicated by the arrows.  
For best results, do not set the Pre-Amp level lower than unity gain when the Drive knob is at  
9 o’clock or higher. However, if you want a crystal-clear sound and the Drive control is already  
near minimum and there’s still too much overdrive, decrease the Pre-Amp’s level as needed.  
Pre-Amp also influences different types of overdrive. For instance, a high setting emphasizes  
pre-amp distortion (see Boogie® Lead-style setting), as opposed to when Drive is in a high set-  
ting, which emphasizes power amp distortion (see Vintage Marshall®-style setting).  
LEVEL  
Simultaneously adjusts the output level of the rear-panel XLR and 1/4" outputs, and Effects  
Loop Send.  
TRIM  
For live performances, this control globally adjusts the level of all presets so you don’t have to  
individually adjust each setting on stage. Be aware that if you have any settings with the Level  
programmed close to/at minimum or maximum, the Trim pot will not be as effective.  
Additionally, when using an external effects processor in the Effects Loop, set Trim at maxi-  
mum before you adjust the input level of the processor. This will ensure you have enough head-  
room when you utilize the Trim control on stage.  
CHARACTER CONTROLS  
Character Controls offer tremendous flexibility in adjusting tonality, gain structure, and har-  
monic content.  
3-DIGIT LED DISPLAY  
Because the SansAmp PSA is fully programma-  
ble, everything you do is monitored by its inter-  
nal processor. And everything you need to know  
is in these three digits. This display is readable  
from any angle, in daylight or darkness. It tells  
you which program is active, whether any knob’s  
setting has been changed, when a program is  
BUZZ  
Controls the low-end break-up and overdrive. You can boost the effect by turning clockwise from the  
center point indicated by the arrows, and cut by turning counterclockwise. When you turn towards  
maximum, the sound becomes (you guessed it) buzzy. For a clean setting, increase the setting in small  
increments. For increased definition when using distortion, position the knob at its midpoint or  
towards minimum.  
stored, and when MIDI functions have been  
activated. (Refer to the sections on programming your SansAmp PSA and using MIDI for spe-  
cific information regarding the display’s functions.)  
PUNCH  
Sets the amount of midrange break-up and overdrive. Boost or cut from the center point indicat-  
ed by the arrows. Decreasing from the center point produces a softer, Fender®-style break-up.  
Increasing its setting creates a harder, heavier distortion. At maximum, it produces a sound simi-  
lar to a wah pedal at mid-boost position placed in front of a Marshall® amp.  
SAVE SWITCH  
The Save switch stores your custom settings in the memory of the SansAmp PSA. It also gives  
you access to the Special Page function menu. It is purposely recessed into the front panel to  
make it difficult to inadvertently push. You can use a guitar pick, a pen tip, or a well-placed  
fingernail to push it.  
CRUNCH  
Brings out the upper harmonic content and pick attack. For a smoother high end and for clean  
settings, decrease to taste.  
UP AND DOWN BUTTONS  
Pushing either of these switches once counts up or down through the programs one at a time.  
Holding the switch down moves quickly through the program numbers.  
DRIVE  
Like the volume control on a non-master-volume tube amp, Drive increases the amount of  
power amp distortion. In live applications, we recommend using less Drive than when direct  
recording. This compensates for the natural sustain of high volumes.  
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Note: You can off-load your custom presets to a computer, sequencer, etc., using a Custom  
Preset Data Dump. For more on this, see page 17.  
PROGRAMMING  
Programs 01-49 are factory presets (refer to list on page 22). If you try to save over a factory  
preset, you will get a flashing “EE” indicating you’re making an error. Note: You can choose to  
be able to overwrite any location, except 00 and 50, including factory presets, or to lock all pro-  
gram locations by changing the protection scheme. See Special Page Function #4 on page 19.  
Programs 51-99 are duplicates of presets 01-49 and are rewritable locations for custom settings.  
Programs 100-127 are preset with all knobs set neutral at 12 o’clock and are rewritable loca-  
tions for custom settings.  
MOVING/COPYING A PROGRAM TO A NEW LOCATION  
1. Choose the preset number you want to move or copy.  
2. Push the Save switch once. The digits of the display blink on and off.  
3. Use the Up or Down buttons to a new location where you want to save it (51-127).  
4. Push the Save switch a second time. The display will “run around” three times and then  
show the selected program number (it will stop blinking). That’s it. You’ve moved/copied a pro-  
gram. Note: The original preset number doesn’t change until it is overwritten.  
Programs 00 and 50 are permanent bypass locations for the instrument signal to pass straight  
through the SansAmp PSA.  
NOTE: Being all-analog circuitry, there are no special algorithms within the different amplifier  
styles. Individual control functions do not change from preset to preset (custom or factory).  
LOCATING INDIVIDUAL CONTROL VALUES WITHIN A PRESET  
When recalling presets, the positions of the front panel controls do not reflect the actual stored  
values of each of their parameters. When you turn any of the knobs (except for the Trim), the  
SansAmp PSA will go into edit mode and “unlock” whichever control you turn. The circuitry  
will then revert to the actual value of that control’s position (vs. the stored value), allowing you  
to edit the sound to your liking.  
SAVING A PROGRAM  
If you want to create a custom setting from scratch:  
1. Go to any program location from 51-127.  
2. Edit controls to taste.  
3. Push the Save twice. The display will “run around” three times and then show the selected  
program number (it will stop blinking). That’s it. You’ve stored a new program.  
One digit  
blinks,  
the other  
dims  
When you turn/unlock a control from the setting that’s stored in  
the memory, one of the digits in the LED numerical display will  
blink, the other will dim. Note: When you’re in program 100 or  
higher, the two left digits blink or dim together as one number.  
This tuner-like feature is useful when you want to know the  
stored position of each knob’s setting in a particular preset.  
When you tweak an existing setting (factory or custom):  
1. Push the Save switch once. The digits of the display blink on and off.  
2. Use the Up or Down buttons to go to a new location (51-127) to be saved.  
3. Push the Save switch a second time. The display will “run around” three times and then show  
the selected program number (it will stop blinking). That’s it. You’ve stored the program.  
Right digit dims  
Left digit blinks  
Left digit  
blinks faster  
Digits resume  
normal  
brightness  
Left digit dims  
Right digit blinks  
Select a  
Program  
Number  
Push  
Save  
Switch  
Display  
Blinks  
On and  
Off  
Push  
Save  
Switch  
Again  
Digits  
“Run Around”  
Three Times  
Display  
Shows  
Stored  
Preset  
Assume the preset point for a particular knob is 12 o’clock. If the left digit blinks and the right  
dims after unlocking it, you will need to turn the knob clockwise to reach the preset value. As  
you get closer, the left digit will blink faster, then stop when you’ve reached the stored value.  
The right digit then resumes its full brightness. Conversely, if the right digit blinks and the left  
dims, you will need to turn the knob counter-clockwise, etc.  
Number  
Be careful not to overwrite a custom program you wanted. Accidents can happen, so we recom-  
mend keeping track of your programs. Blank diagrams are provided on pages 24-27 and can be  
photocopied. Write in the knob settings and give each program a name (song title, description  
of the tone, etc.) for easy reference later.  
Note: If desired, you can alter the display mode to be dashes or numerical values instead of  
digits. See Special Page Function #7 on page 20.  
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REAR PANEL  
RIGHT RETURN  
When using a mono effects processor, plug the processor’s output into the SansAmp PSA’s  
Right Return. This will route the signal to both pairs of left and right Outputs.  
LEFT RETURN  
INPUT 2 SECTION  
This is one of two stereo returns for the Effects Loop. If your signal processor has only one out-  
put (mono), then plug it into the Right Return.  
INPUT 2 JACK  
1/4-inch  
,
4.7megOhm. This high impedance input is designed with piezo pickups in mind to provide  
maximum output and dynamics. Plugging into Input 2 lets you match the SansAmp PSA’s input cir-  
cuitry to the signal level being fed into it, assuring the best signal-to-noise ratio and least distortion.  
This input is ideal for rack and patch-bay applications, especially if you use other signal processors or  
multi-track recorders before the SansAmp PSA. Note: When you plug into the front panel Input,  
the rear panel Input 2 is disconnected. Also, you can set the Input Level Selector Switch to its  
0dB position when you plug in extra-hot signals, such as the output from active bass guitars.  
UNIVERSAL OUTPUT SECTION  
Another aspect of the technological advancement of the SansAmp PSA is that its output sections  
are physically compatible with any application. The outputs can be used for full range (multi-track  
recorders, studio monitors, P.A. systems) as well as limited range systems (guitar or bass speaker  
cabinets). Note: You can compensate for different frequency responses of speaker enclosures by  
using the High control.  
LEVEL SELECTOR SWITCH  
This switch lets you connect the SansAmp PSA to a wide variety of equipment with a variety  
of signal levels. It has two positions:  
1/4" OUTPUT JACKS  
These left and right 1/4" jacks carry the signal from the SansAmp PSA. This includes any  
effects that are placed in the Effects Loop. The Output level switch (0dB/-10dB) lets you inter-  
face the SansAmp PSA with a variety of line and instrument level inputs, including recorders  
and mixers requiring low-level signals, signal processors, and power amps.  
0dB position. This engages the input pad. Set the switch in this position when sending a  
line-level signal into the SansAmp PSA. When the switch is in this position, the signal  
coming into the unit is padded down by 10dB.  
-10dB position. When the input pad switch is disengaged (at its -10dB setting), the rear  
panel Input 2 is optimized to receive an instrument level signal. In this position, Input 2’s  
sensitivity is exactly the same as the front panel’s Input.  
1/4" OUTPUT LEVEL SWITCH  
Selects the Output level’s range. When in its 0dB position (engaged), the Output is at line level.  
When the switch is in -10dB position (disengaged), the Output is at instrument level.  
XLR OUTPUT JACKS  
EFFECTS LOOP  
The SansAmp PSA’s two XLR Outputs are designed without transformers to provide a low-  
impedance output of extremely high quality for recording or interface with professional-quality  
signal processors. (It includes any effects that are placed in the Effects Loop.) XLR and 1/4"  
Outputs may be used simultaneously. Minimum output impedance is 600 Ohms.  
EFFECTS SEND  
Sends the SansAmp PSA’s signal to processors. When nothing is plugged into the Effects Loop,  
the signal passes through from the SansAmp PSA to the Output jacks, with both left and right  
Output jacks receiving the same signal. Note: Effects Loop Send is muted in bypass programs.  
XLR OUTPUT LEVEL SWITCH  
MIX 50/50 SWITCH  
Sets the range of the signal level sent out of the XLR Output jacks. When in the 0dB position  
(engaged), the Output is in the line level range. When the switch is in its -10dB position  
(disengaged), the Output is in the instrument level range.  
The 1/4" Send routes 100% of the SansAmp PSA’s signal through your effects processor when  
the 50/50 switch is disengaged. If you engage the 50/50 switch, then 50% of the SansAmp PSA  
signal goes through your effects processor, and the other 50% passes directly to the 1/4" and  
XLR Outputs.  
Note: The standard output level range of the SansAmp PSA is 0dB due to the wide availability  
of digital recorders, which are unforgiving to excessive input levels. This prevents overloading  
the input of a digital recorder.  
To preserve the signal integrity of the SansAmp PSA, use the Effects Loop with the 50/50 switch  
engaged. When the SansAmp PSA is in this mode, the effects processor’s mix control should be  
set at 100% wet. Your relative wet/dry mixture can then be controlled by increasing or decreasing  
the effects processor’s output level.  
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XLR GROUND LIFT  
USING THE SANSAMP PSAS INPUTS  
Connects or disconnects the ground circuits between the XLR Direct Out of the SansAmp  
PSA and the mixer. We recommend starting with the ground lifted (button in). If necessary,  
connect the ground (button out).  
MIDI  
MIDI IN  
This jack receives MIDI signals, including Program Change commands and MIDI data dumps.  
NOTE: Pins 1 and 3 of the MIDI connector are set up to output 10V DC phantom power to  
our MIDI Mouse™ footcontroller (see Options on page 28).  
MIDI THRU/OUT  
This jack normally functions as a MIDI Thru, which lets MIDI data entering the SansAmp  
PSA pass through to other MIDI-controlled gear. This is useful when you employ a MIDI  
footcontroller to control the SansAmp PSA and an effects processor. You can disengage the  
MIDI Thru by using Special Page Function 9 (see page 21).  
When you off-load custom preset data or MIDI map data , this jack operates as a MIDI Out.  
(See Special Page Function 1, page 17.)  
Always use good-quality MIDI cables for connecting the SansAmp PSA with other gear.  
HEADPHONE  
Dedicated stereo 1/4-inch output. Be aware that you will hear in stereo only if you use a stereo  
effect in the Effects Loop.  
CAUTION: Do not use a mono 1/4-inch cable in this output.  
SUGGESTED SETUPS  
The following three pages show you how to interface your SansAmp PSA with other gear,  
including MIDI equipment.  
The front-panel Input jack is designed to accept signals from guitars, basses, keyboards, etc.  
You can set up your SansAmp PSA as a permanent part of a rack or patch-bay setup, with its  
usual input source plugged into the rear-panel jack. Then, if you want to plug straight into  
the SansAmp PSA, use the front-panel Input, which overrides the rear-panel Input 2.  
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USING THE SANSAMP PSAS OUTPUTS  
USING MIDI  
The SansAmp PSA has dual 1/4" unbalanced and XLR balanced Outputs for interfacting  
with all types of gear. XLR Outputs provide a signal for driving pro gear, including P.A. sys-  
tems, mixers, signal processors. 1/4" Outputs are ideal for feeding most mixers, signal proces-  
sors, and instrument amplifiers. Each set can be used simultaneously and independently.  
All MIDI gear, including MIDI footcontrollers, signal processors, keyboards, and computers,  
can be connected to the SansAmp PSA. The MIDI In accepts Program Change commands,  
as well as MIDI Map and Program dumps. The MIDI Thru/Out jack is usually configured as a  
MIDI Thru, except when data is being transmitted from the SansAmp PSA.  
USING THE EFFECTS LOOP  
The Effects Loop lets you patch in reverbs,  
delays, and other signal processors. If your  
signal processor has only one output  
(mono), then plug it into the Right Return.  
Note: If you engage the 50/50 switch, then  
50% of the SansAmp PSA signal goes  
through your effects processor, and the  
other 50% passes directly to the 1/4" and  
XLR Outputs.  
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SPECIAL PAGE FUNCTIONS & MIDI IMPLEMENTATION  
SPECIAL PAGE FUNCTION 1: CUSTOM PRESET DATA DUMP  
This lets you off-load your custom presets to another SansAmp PSA-1.1 (note: must be the  
same “1.1” model number) or other external MIDI gear, such as a sequencer. Connect a MIDI  
cable from the SansAmp PSA’s MIDI Thru/Out jack, and plug the other end into a second  
SansAmp PSA-1.1, sequencer, MIDI-able computer, etc. Set up the sequencer or computer to  
receive the MIDI data (a second SansAmp PSA-1.1 will automatically detect and accept the  
data dump, so you don’t have to adjust anything), and then press the SansAmp PSA’s Save  
SPECIAL PAGE FUNCTIONS  
Some very important features lurk inside your SansAmp PSA and aren’t accessible through  
the knobs and Up and Down switches alone. They’re very important and useful, so take the  
time to check them out, especially if you are using a MIDI footcontroller or other MIDI gear  
to interface with your SansAmp PSA.  
To operate the Special Page functions, select Program 00 and press the Save button once.  
(Use a guitar pick or a pen tip.) The digits in the numerical display should now be flashing  
together.  
Push  
the  
Save  
Display  
Shows  
Two Dashes  
While  
Dumping  
MIDI  
Display  
Flashes 00  
Upon  
Return to  
Special  
Page  
Digits Stop  
Blinking  
Upon  
Return to  
Program  
00  
Digits  
Blink  
Switch  
Select  
Special  
Page  
Function  
(00 - 09)  
Push  
the  
Save  
Digits  
Blink  
Push  
the  
Save  
Switch  
Again  
Select  
Program  
00 to  
Access  
Special  
Page  
Data  
Menu  
Switch  
switch. The SansAmp PSA’s display will show two dashes for approximately 10 seconds, and  
then a flashing 00, meaning that it has completed the dump and returned to the Special Page  
function menu. You may now choose either a new Special Page function, or press Save again  
to exit. If you don’t make a choice in about 15 seconds, the display stops blinking, indicating  
that the SansAmp PSA is in Program 00, bypass.  
Menu  
Use the Up and Down buttons to select any of these functions:  
NOTE: Use one cable at a time. To use 2 cables, you will need to disable the MIDI Thru. See  
Special Page Function #9 on page 21.  
00  
01  
02  
03  
04  
05  
06  
07  
08  
09  
Exit Special Page  
Custom Preset Data Dump out through the MIDI Thru/Out port  
Define MIDI Mapping  
0-127 / 1-128 Patch Offset  
Preset Protection Writer  
MIDI Channel Select  
Software Revision Number  
Edit Pot Display Mode  
Disengage All Pots  
SPECIAL PAGE FUNCTION 2: DEFINE MIDI MAPPING  
This function defines internal MIDI mapping. That is, it tells your SansAmp PSA which pro-  
gram to call up when a MIDI Program Change command comes in. For example, if your MIDI  
footcontroller sends out a Program Change command that says Program 26, and you want  
your SansAmp PSA to respond to that Program 26 message by calling up preset number 15,  
you can set the SansAmp PSA to map that message to the appropriate location. NOTE: The  
SansAmp PSA comes from the factory with its MIDI map set by default to map incoming pro-  
grams to the same numbered displayed programs. That is, MIDI 01 calls up Program 01, etc.  
MIDI Thru Disable  
When you select a function, press the Save button a second time and the digits will stop  
flashing. (NOTE: If you select function 00, you will exit the Special Page function menu and  
return to Bypass Program 00.)  
To remap a MIDI Program Change command, here’s what you do:  
Select function 02 and push Save. The left digit will blink with the right digit dim, telling  
you that the display is showing the number of the incoming program. To change that number,  
use the Up and Down switches to select a new number. Now push the Save button and the  
right digit blinks; the left digit dims, indicating the SansAmp PSA program that will be  
Then you can proceed to do any of the following:  
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To change the setting, use the Up and Down buttons to select 00 or 01. Then push Save to  
store your selection. The display will then flash 00 to indicate you’re back in the Special Page  
menu. You may now choose either a new Special Page function, or press Save again to exit. If  
no choice is made in about 15 seconds, the display stops blinking, indicating the SansAmp  
PSA is in Bypass Program 00.  
Digits  
Blink  
Push  
the  
Save  
Left Digit  
Blinks, Right  
Digit Dims to  
Select  
New  
Incoming  
Number  
Push  
the  
Save  
Switch  
Again  
SPECIAL PAGE FUNCTION 4: PRESET PROTECTION WRITER  
This allows you to change the level of protection for factory and custom presets. When you  
select Function 4, the display will show either 00, 01 or 02.  
Switch Show Incoming  
MIDI  
Number  
00: All Protect. All programs are locked and cannot be overwritten.  
01: Normal. Protects Programs 00-50 (as shipped).  
02: No Protect. All programs can be overwritten, except Bypass 00 and 50.  
Note: Bypass locations 00 and 50 are permanently locked and cannot be overwritten.  
Digits Stop  
Blinking  
Upon  
Return to  
Program  
00  
Display  
Flashes 00  
Upon  
Return to  
Special  
Page  
Right Digit  
Blinks, Left  
Digit Dims to  
Show the  
PSA’s  
Preset  
Number  
Push  
the  
Save  
Switch  
Twice  
Select  
New  
Preset  
Number  
Display  
Flashes 00  
Upon  
Return to  
Special  
Page  
Digits Stop  
Blinking  
Upon  
Return to  
Program  
00  
Digits  
Blink  
Push  
the  
Save  
Current  
Setting  
is  
Push  
the  
Save  
Switch  
Again  
Select 00,  
01 or 02  
to Protect  
Level  
Menu  
affected by the incoming MIDI Program Change number that you selected. To change the  
program, use the Up and Down buttons. Then push the Save button twice to store your  
change. The display will then flash 00 to indicate you’re back in the Special Page menu. You  
may now choose either a new Special Page function, or press Save again to exit. If you don’t  
make a choice in about 15 seconds, the display stops blinking, indicating the SansAmp PSA  
is in Bypass Program 00.  
Switch  
Shown  
Desired  
Menu  
To change the setting, use the Up and Down buttons to select 00, 01, or 02. Then push Save  
to store your selection. The display will then flash 00 to indicate you’re back in the Special  
Page menu. You may now choose either a new Special Page function, or press Save again to  
exit. If you don’t make a choice in about 15 seconds, the display stops blinking, indicating the  
SansAmp PSA is in Bypass Program 00.  
SPECIAL PAGE FUNCTION 3: 0-127 / 1-128 PATCH OFFSET  
Some MIDI program changers use the numerical grouping of 0-127, others 1-128. With  
Special Page Function 3, you can choose the corresponding grouping of the SansAmp PSA to  
match. If you have selected Special Page Function 3, the display will show either 00 or 01.  
00: 00 - 127 (as shipped)  
SPECIAL PAGE FUNCTION 5: MIDI CHANNEL SELECT  
01: 01 - 128  
This function sets the MIDI channel on which the SansAmp PSA receives MIDI data. It can be  
set to Omni (receive on any or all channels), or specific channels 1 through 16. Push the Save  
button, and the display shows the current setting. Press the Up or Down buttons to select either  
Omni (the default value, indicated by a small “o” in the right digit), or any number between 1  
and 16. Push Save to store your selection. The display will then flash 00 to indicate you’re still  
in the Special Page menu. You may now choose either a new Special Page function, or press  
Save again to exit. If you don’t make a choice in about 15 seconds, the display stops blinking,  
indicating the SansAmp PSA is in Bypass Program 00.  
Display  
Flashes 00  
Upon  
Digits Stop  
Blinking  
Upon  
Digits  
Blink  
Push  
the  
Save  
Current  
Setting  
is  
Push  
the  
Save  
Switch  
Again  
Select 00  
or 01 to  
Change  
the  
Return to  
Special  
Page  
Return to  
Program  
00  
Switch  
Shown  
Grouping  
Menu  
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Display  
Flashes 00  
Upon  
Return to  
Special  
Page  
Digits Stop  
Blinking  
Upon  
Return to  
Program  
00  
Digits  
Blink  
Push  
the  
Save  
Current  
Setting  
is  
Push  
the  
Save  
Switch  
Again  
Select “o”  
for  
“Omni,”  
or  
Channel  
1 - 16  
Select 00,  
01 or 02  
for  
Display  
Mode  
Push  
the  
Save  
Switch  
Again  
Display  
Flashes 00  
Upon  
Return to  
Special  
Page  
Digits Stop  
Blinking  
Upon  
Return to  
Program  
00  
Digits  
Blink  
Push  
the  
Save  
Current  
Setting  
is  
Switch  
Shown  
Switch  
Shown  
Desired  
Menu  
Menu  
SPECIAL PAGE FUNCTION 6: SOFTWARE REVISION NUMBER  
SPECIAL PAGE FUNCTION 8: DISENGAGE ALL POTS  
This function tells you which version of software is in your SansAmp PSA. You cannot alter  
this, but the information may come in handy in the future if software upgrades become avail-  
able. When you select Special Page Function 6, the display will show a two-digit number.  
This function renders all eight front panel potentiometers inactive. This advanced feature pre-  
vents accidental setting changes during performances. All presets remain in the memory and  
are accessible via MIDI, however, you cannot edit the programs while in this mode. Select  
function 08 and press Save. Use the Up and Down buttons to select between two options:  
00: All pots engaged (normal operation, as shipped)  
Automatically  
Exits to  
01: All pots disengaged  
Special  
Page Menu  
After  
15 Seconds,  
or When  
Save Switch  
is Pushed  
Digits  
Blink  
Push  
the  
Save  
Display  
Shows  
Software  
Version  
Display  
Flashes 00  
Upon  
Return to  
Special  
Page  
Digits Stop  
Blinking  
Upon  
Return to  
Program  
00  
Then push Save to store your selection. The display will then flash 00 to indicate you’re back  
in the Special Page menu. You may now choose either a new Special Page function, or press  
Save again to exit. If you don’t make a choice in about 15 seconds, the display stops blinking,  
indicating that the SansAmp PSA is in Program 00, bypass.  
Switch  
Menu  
SPECIAL PAGE FUNCTION 9: MIDI THRU DISABLE  
After showing you the software version, the display will flash 00 to indicate you’re back in the  
Special Page menu. You may now choose either a new Special Page function, or press Save  
again to exit. If you don’t make a choice in about 15 seconds, the display stops blinking, indi-  
cating the SansAmp PSA is in Program 00, bypass.  
This function disables MIDI Thru on the MIDI Thru/Out port. If you are using a multi-port  
MIDI interface, you should disable MIDI Thru. If you are daisy chaining your MIDI devices,  
leave it enabled. Select function 09 and press Save. Use the Up and Down buttons to select:  
00: MIDI Thru enabled (normal operation, as shipped)  
01: MIDI Thru disabled  
SPECIAL PAGE FUNCTION 7: EDIT POT DISPLAY MODE  
For finding presets, you can change how the information is displayed for a stored pot’s posi-  
tion. You can choose to use digits, dashes or the numerical value of the pot. When you select  
Function 7, the display will show either 00, 01 or 02.  
Then push Save to store your selection. The display will then flash 00 to indicate you’re back  
in the Special Page menu. You may now choose either a new Special Page function, or press  
Save again to exit. If you don’t make a choice in about 15 seconds, the display stops blinking,  
indicating that the SansAmp PSA is in Program 00, bypass.  
00: Digits (as shipped)  
01: Dashes  
02: Numerical Value (0-127)  
To change the setting, use the Up and Down buttons to select 00, 01, or 02. Then push Save  
to store your selection. The display will then show a flashing 00 to indicate you’re back in the  
Special Page menu. You may now choose either a new Special Page function, or press Save  
again to exit. If you don’t make a choice in about 15 seconds, the display stops blinking, indi-  
cating that the SansAmp PSA is in Program 00, bypass.  
20  
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FACTORY PRESETS  
CUSTOM SETTINGS  
(Keep a checklist of your customized programs.)  
Note: Factory presets are based upon using the appropriate types of instruments and/or  
accessories associated with each particular sound.  
SOUND GROUP  
PRESET  
00  
01  
02  
03  
04  
05  
06  
07  
08  
09  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
47  
48  
49  
50  
SOUND  
Bypass  
PROGRAM #  
SOUND/NAME  
PROGRAM #  
SOUND/NAME  
Marshall® styles  
Plexi  
Vintage  
Schenker  
JMP-1®  
High Gain  
Bluesbreaker  
Hendrix  
Van Halen I  
Classic Clean  
Stock  
Fender® styles  
B.B. King  
Stevie Ray  
Funk  
Champ®  
Twin®  
Super Bright  
Classic Rock  
Super Clean  
Jazz  
Mesa/Boogie® styles  
Mark I®  
Metallica  
Santana  
Clean  
Rectifier®  
Triaxis®  
Lead  
Rhythm  
Too Much Gain  
Mutant  
Bass styles  
SVT®  
Bassman®  
Jazz  
Metal  
Slap  
King’s X  
Yes  
Lead  
Doug Wimbish  
Crimson  
Fuzz Face®  
Big Muff Pi®  
Pignose®  
MXR+®  
Miscellaneous styles  
Tele® Simulator  
American Woman  
Pantera  
Marshall®, JMP-1®, Fender®, Champ®, Twin®, Mesa/Boogie®, Mark I®, Rectifier®, Triaxis®, SVT®, Bassman®, Fuzz  
Face®, Big Muff Pi®, Pignose®, MXR +®, Tele®, Hiwatt®, and AC30® are registered trademarks of their respective  
companies. Names of factory presets are intended for descriptive purposes only and should not be construed as an  
endorsement or affiliation with the companies, products, song titles, or persons named.  
Hiwatt®  
AC30® Queen  
Speaker Simulator  
Bypass  
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CUSTOM SETTINGS DIAGRAMS  
(Photocopy these pages and keep a record of your customized programs.)  
Program Number  
Program Number  
Notes  
Notes  
Program Number  
Program Number  
Notes  
Notes  
Program Number  
Program Number  
Notes  
Notes  
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CUSTOM SETTINGS DIAGRAMS  
(Photocopy these pages and keep a record of your customized programs.)  
Program Number  
Program Number  
Notes  
Notes  
Program Number  
Program Number  
Notes  
Notes  
Program Number  
Program Number  
Notes  
Notes  
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SPECIAL PAGE RESTORE  
You can reset the settings of the Special Page Functions and MIDI mapping to their original  
factory values, as shipped, without disturbing your stored settings:  
Turn the power switch off.  
SansAmp PSA-1.1 Specifications  
Model Number:  
PSA-1.1  
Input Impedance-Input 1:  
Input Impedance-Input 2:  
Input Level-Input 1:  
Input Level-Input 2:  
Output Impedance-1/4”:  
Output Impedance-XLRs:  
Output Level-1/4”:  
1MegOhm  
Turn all pots counter-clockwise to minimum.  
4.7MegOhm  
Press and hold the Save switch (with a pick or pen), while turning the  
power switch back on. The display will show “Sr” to represent Special-page reset.  
Continue to hold the Save switch for 3 seconds.  
-10dB  
Switchable to -10dB or 0dB range  
1K Ohm min  
When restored, the display will show “00” to indicate you’re in Program 00, bypass.  
That’s it. You’re back to the original Special Page Functions and MIDI mapping.  
600 Ohm min  
Switchable to -10dB or 0dB range  
Switchable to -10dB or 0dB range  
+10dB or better  
Output Level-XLR:  
FACTORY PRESET RESET  
To reset the factory presets only (01-49), follow this procedure:  
Turn the power switch off.  
Maximum Output Level:  
XLR Pin Configuration:  
phase  
Pin 1: Ground / Pin 2: In phase / Pin 3: Reverse  
Turn all pots counter-clockwise to minimum.  
Effects Loop Send:  
1K Ohm min, -10dB, Mono  
100K Ohm min, -10dB, Stereo/Mono  
10Hz or better*  
Press and hold the Up and Down buttons simultaneously, while turning the  
power switch back on. The display will show “Fr” to represent Factory reset.  
Continue to hold the Up and Down buttons for 3 seconds.  
When reset, the display will show “00” to indicate you’re in Program 00, bypass.  
That’s it. Factory preset Programs 01-49 are back to how the unit was originally shipped.  
Effects Loop Return:  
Low Frequency Response:  
High Frequency Response:  
Maximum Power Consumption:  
AC Input Power (factory set):  
Cycles:  
Harmonic content, 20kHz or better*  
5 Watts  
100V, 117V, 230V, 240V  
50/60 Hz  
OPTIONS  
NOTE: Each unit is constructed for specific  
voltages. AC power cannot be switched.  
Aluminum and steel, fully shielded  
19.0”w x 1.75”h x 5”d / Overall depth: 6”  
5 lbs.  
MIDI Mouse™  
Exceptionally player-friendly MIDI foot controller. Heavy duty, compact, stomp box format  
(4-1/2” x 3-1/2”) that fits in a gig bag. There are no banks to change --just scroll up or down to  
128 program locations on any of the 16 MIDI channels.  
Enclosure:  
Dimensions:  
Weight:  
Power Engine 300 and Power Engine 400  
2U Rackmount Instrument Power Amplifiers  
*Due to the variety of amplifier emulations available, frequency response characteristics will vary.  
• 300-watt/4-Ohm mono and 400-watt/8-Ohm stereo formats  
• Dimensions: 17”w x 3.5”h x 10”d / Overall: 19”w x 3.8125”h x 11.5”d  
• Weight: Power Engine 300 @ 22.3 lbs; Power Engine 400 @ 26.25 lbs  
Power Engine 60  
1x12 open-back cabinet with 60 watts of transparent power  
• 8 Ohms / 100 watts handling  
• 12” Celestion® speaker  
Note: With on-going product development and improvements, specifications and/or the  
cosmetic appearance of this unit may change without prior notice.  
• 3-band active EQ controls  
Replacement parts are available, i.e., knobs, rack handles, faceplate, etc.  
For more information, please contact your authorized dealer or Tech 21.  
• Dimensions: 18.25”w x 18.75”h x 14.25”d • Weight: 36 lbs.  
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