Boss Audio Systems Musical Instrument GT 6B User Manual

Owner’s Manual  
Thank you, and congratulations on your choice of the BOSS  
GT-6B Bass Effects Processor.  
Before using this unit, carefully read the sections entitled:  
USING THE UNIT SAFELY (page 23)  
IMPORTANT NOTES (page 4)  
These sections provide important information concerning  
the proper operation of the unit.  
Additionally, in order to feel assured that you have gained a  
good grasp of every feature provided by your new unit,  
Owner’s manual should be read in its entirety. The manual  
should be saved and kept on hand as a convenient reference.  
Prin tin g Co n ve n tio n s in Th is Ma n u a l  
• Text or numerals enclosed in square brackets [ ] indicate buttons.  
[WRITE]  
WRITE button  
[UTILITY] UTILITY button  
• Reference such as (p. **) indicate pages in this manual to which  
you can refer.  
* All product names mentioned in this document are trademarks or  
registered trademarks of their respective owners.  
Copyright © 2002 BOSS CORPORATION  
All rights reserved. No part of this publication may be reproduced in any form  
without the written permission of BOSS CORPORATION.  
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013  
101b  
In households with small children, an adult  
should provide supervision until the child is  
capable of following all the rules essential for the  
safe operation of the unit.  
The unit and the AC adaptor should be located so  
their location or position does not interfere with  
their proper ventilation.  
..........................................................................................................  
102c  
..........................................................................................................  
014  
Always grasp only the plug on the AC adaptor  
cord when plugging into, or unplugging from, an  
outlet or this unit.  
Protect the unit from strong impact.  
(Do not drop it!)  
..........................................................................................................  
..........................................................................................................  
103b  
015  
Whenever the unit is to remain unused for an  
extended period of time, disconnect the AC  
adaptor.  
Do not force the units power-supply cord to share  
an outlet with an unreasonable number of other  
devices. Be especially careful when using  
..........................................................................................................  
104  
extension cordsthe total power used by all  
devices you have connected to the extension  
cords outlet must never exceed the power rating  
(watts/ amperes) for the extension cord. Excessive  
loads can cause the insulation on the cord to heat  
up and eventually melt through.  
Try to prevent cords and cables from becoming  
entangled. Also, all cords and cables should be  
placed so they are out of the reach of children.  
..........................................................................................................  
106  
Never climb on top of, nor place heavy objects on  
the unit.  
..........................................................................................................  
016  
Before using the unit in a foreign country, consult  
with your retailer, the nearest Roland Service  
Center, or an authorized Roland distributor, as  
listed on the Informationpage.  
..........................................................................................................  
107c  
Never handle the AC adaptor or its plugs with  
wet hands when plugging into, or unplugging  
from, an outlet or this unit.  
..........................................................................................................  
..........................................................................................................  
108b  
Before moving the unit, disconnect the AC  
adaptor and all cords coming from external  
devices.  
..........................................................................................................  
109b  
Before cleaning the unit, turn off the power and  
unplug the AC adaptor from the outlet (p. 12).  
..........................................................................................................  
110b  
Whenever you suspect the possibility of lightning  
in your area, disconnect the AC adaptor from the  
outlet.  
..........................................................................................................  
3
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IMPO RTAN T N O TES  
291a  
In addition to the items listed under USING THE UNIT SAFELYon page 23, please read and observe the following:  
Po w e r Su p p ly  
Me m o ry Ba ck u p  
501b  
301  
Do not use this unit on the same power circuit with any  
device that will generate line noise (such as an electric  
motor or variable lighting system).  
This unit contains a battery which powers the units  
memory circuits while the main power is off. When this  
battery becomes weak, the message shown below will  
appear in the display. Once you see this message, have the  
battery replaced with a fresh one as soon as possible to  
avoid the loss of all data in memory. To have the battery  
replaced, consult with your retailer, the nearest Roland  
Service Center, or an authorized Roland distributor, as  
listed on the Informationpage.  
302  
The AC adaptor will begin to generate heat after long  
hours of consecutive use. This is normal, and is not a  
cause for concern.  
307  
Before connecting this unit to other devices, turn off the  
power to all units. This will help prevent malfunctions  
and/ or damage to speakers or other devices.  
Pla ce m e n t  
351  
Using the unit near power amplifiers (or other equipment  
containing large power transformers) may induce hum.  
To alleviate the problem, change the orientation of this  
unit; or move it farther away from the source of inter-  
ference.  
Ad d itio n a l Pre ca u tio n s  
551  
Please be aware that the contents of memory can be  
irretrievably lost as a result of a malfunction, or the  
improper operation of the unit. To protect yourself against  
the risk of loosing important data, we recommend that  
you periodically save a backup copy of important data  
you have stored in the units memory in another MIDI  
device (e.g., a sequencer).  
352a  
This device may interfere with radio and television  
exception. Do not use this device in the vicinity of such  
receivers.  
352b  
Noise may be produced if wireless communications  
552  
devices, such as cell phones, are operated in the vicinity of  
this unit. Such noise could occur when receiving or initi-  
ating a call, or while conversing.  
Should you experience such problems, you should  
relocate such wireless devices so they are at a greater  
distance from this unit, or switch them off.  
Unfortunately, it may be impossible to restore the contents  
of data that was stored in another MIDI device (e.g., a  
sequencer) once it has been lost. Roland Corporation  
assumes no liability concerning such loss of data.  
553  
Use a reasonable amount of care when using the units  
buttons, sliders, or other controls; and when using its jacks  
and connectors. Rough handling can lead to malfunctions.  
355  
To avoid possible breakdown, do not use the unit in a wet  
area, such as an area exposed to rain or other moisture.  
554  
Never strike or apply strong pressure to the display.  
556  
When connecting / disconnecting all cables, grasp the  
connector itselfnever pull on the cable. This way you  
will avoid causing shorts, or damage to the cables  
internal elements.  
Ma in te n a n ce  
401a  
For everyday cleaning wipe the unit with a soft, dry cloth  
or one that has been slightly dampened with water. To  
remove stubborn dirt, use a cloth impregnated with a  
mild, non-abrasive detergent. Afterwards, be sure to wipe  
the unit thoroughly with a soft, dry cloth.  
558a  
To avoid disturbing your neighbors, try to keep the units  
volume at reasonable levels. You may prefer to use  
headphones, so you do not need to be concerned about  
those around you (especially when it is late at night).  
402  
559a  
Never use benzine, thinners, alcohol or solvents of any  
kind, to avoid the possibility of discoloration and/ or  
deformation.  
When you need to transport the unit, package it in the box  
(including padding) that it came in, if possible. Otherwise,  
you will need to use equivalent packaging materials.  
561  
Use only the specified expression pedal (EV-5; sold  
separately). By connecting any other expression pedals,  
you risk causing malfunction and/ or damage to the unit.  
Re p a irs a n d Da ta  
452  
Please be aware that all data contained in the units  
memory may be lost when the unit is sent for repairs.  
Important data should always be backed up in another  
MIDI device (e.g., a sequencer), or written down on paper  
(when possible). During repairs, due care is taken to avoid  
the loss of data. However, in certain cases (such as when  
circuitry related to memory itself is out of order), we  
regret that it may not be possible to restore the data, and  
Roland assumes no liability concerning such loss of data.  
562  
Use a cable from Roland to make the connection. If using  
some other make of connection cable, please note the  
following precautions.  
Some connection cables contain resistors. Do not use  
cables that incorporate resistors for connecting to this  
unit. The use of such cables can cause the sound level  
to be extremely low, or impossible to hear. For infor-  
mation on cable specifications, contact the manufac-  
turer of the cable.  
4
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Co n te n ts  
Th e Effe cts Ex p la in e d .................................. 2 5  
Ch a p te r 1  
Ch a p te r 2  
Using the Pedal Effects  
Ch a p te r 5  
Selecting Each Effect to Be Turned On and Off  
Ch a p te r 3  
Settings for Using the Expression Pedal Switch/  
I
5
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Co n te n ts  
Controlling Effects with the GT-6B Pedals,  
Ch a p te r 1 0  
Controlling Foot Volume and Pitch Shifter  
Enabling/ Disabling the Program Change Map Settings  
Ch a p te r 6  
Ch a p te r 7  
Usin g So u n d O n So u n d .............................. 5 4  
Ch a p te r 8  
Connecting Directly to a Recording  
Adjusting the Overall Sound to Match the Usage  
Ch a p te r 9  
Setting the Timing Used for Switching Patches  
Setting the Timing Used for Switching Patches  
Setting the External Foot Switch Functions  
6
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Ma in Fe a tu re s  
Po w e rfu l CO SM Mo d e lin g Effe cts Bu ilt-In  
Q u ick Se ttin g s  
Features internal high-quality modeled effects, including  
bass amp, overdrive/ distortion, compressor/ limiter, touch  
wah, pedal wah, and more.  
Each effect contains pre-programmed settings for each effect.  
Creating the effect sounds you want is simplejust select the  
preset settings for the effect you are using.  
In te rn a l An a lo g By p a ss Circu itry  
A W id e Va rie ty o f Effe cts  
When bypass is activated, signals can be output without  
passing through the AD/ DA converter. Moreover, analog  
signals also can be output without passing through the AD/  
DA converter when only chorus or reverb/ delay is used.  
The GT-6B provides 35 different effects, from pro-quality  
chorus, delay and reverb, to octave, defretter, synth-bass, a  
newly developed Auto Slap, and numerous other effects.  
Ex p re ssio n Pe d a l/ Ex p re ssio n Pe d a l  
Sw itch a n d Co n tro l Pe d a l  
Eq u ip p e d w ith XLR Ba la n ce d O u tp u t  
Co n n e cto rs  
The unit features an expression pedal and control pedal that  
you can use in setting the functions in each patch. The  
functions that can be assigned to the expression pedal vary  
with each patch you select, allowing you to use it as a wah  
pedal, volume pedal, or other kind of pedal.  
The GT-6B features two XLR type output jacks, enabling you  
to connect to PAs and recording decks. And not only can you  
output in stereo, these can also be selected as monaural  
outputs and direct outs.  
Furthermore, you can use the pedal as an expression pedal  
switchto control (turn on and off) the current effect by  
firmly pressing down at the front tip. (p. 46)  
Cu sto m ize Fu n ctio n  
The GT-6Bs internal Customize function lets you bring your  
own sensibilities into play, and design totally new effects by  
tweaking the settings for the Overdrive/ Distortion,and  
Pedal Waheffects.  
In clu d e s Dig ita l O u ts  
The unit also includes digital out connectors (coaxial),  
convenient for digital recording. (p. 58)  
The resulting creations can then be saved on the GT-6B as  
Customsettings. (p. 52)  
EZ To n e  
The GT-6B includes thirty representative effect sounds used  
for creating new sounds. Now its easy to select just the  
sounds you like. (p. 16)  
CO SM (Co m p o site O b je ct So u n d Mo d e lin g )  
Composite Object Sound Modeling (COSM) is an  
original sound modeling technology developed by  
Roland, in which the many factors that make up the  
original sound, such as the electrical circuitry, structural  
characteristics, materials used, and acoustics, are  
analyzed and then recombined to reproduce that same  
sound.  
7
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Pa n e l De scrip tio n s  
Fro n t Pa n e l  
fig.00-01  
44  
43  
30  
1
39  
41  
2
42  
40  
3
14  
4
5
8
9
12  
21  
31  
10  
6
7
32  
33  
35  
11  
13  
15  
27  
28  
29  
19  
17  
24  
18  
25  
20  
22  
26  
16  
23  
36  
38  
37  
34  
1
2
Disp la y  
CO MP/ LIMITER (p . 2 5 )  
A variety of information about the GT-6B appears here.  
The left display shows the bank number.  
(Co m p re sso r/ Lim ite r)  
3
4
5
ATK/ THR (Atta ck / Th re sh o ld ) Kn o b  
Adjusts the compressors attack and the volume at which  
the limiter begins to affect the sound.  
The right display indicates patch names, parameters,  
and a variety of other information.  
EFFECT LEVEL Kn o b  
SUS/ RATIO (Su sta in / Ra tio ) Kn o b  
Adjusts the length of the compressor decay and adjusts  
the limiters compression ratio.  
Adjust the overall volume.  
* When the Bypass EXP Mode (p. 55) and Noise Suppressor (p.  
turning this knob does not change the volume of the direct  
sound.  
LEVEL Knob  
Adjusts the compressor/ limiter volume level.  
8
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Pa n e l De scrip tio n s  
6
7
CO MP/ LIMITER O N / O FF Bu tto n  
Press this to switch the compressor/ limiter on and off  
and when changing other settings.  
PREAMP/ SPEAKER (p . 2 9 )  
(Pre a m p / Sp e a k e r)  
1 6 TYPE Kn o b  
Selects the preamp type.  
TYPE VARIATIO N Bu tto n  
Selects the compressor or limiter type.  
1 7 GAIN Kn o b  
Adjusts the amount of amplification from the preamp.  
This changes the sort of distortion you get with the amp.  
O VERDRIVE/ DISTO RTIO N (p . 2 6 )  
8
DRIVE Kn o b  
1 8 TREBLE/ Q Kn o b  
Adjusts the distortion effect from the overdrive or  
distortion.  
Adjusts the sound quality of the preamps upper range.  
Also adjusts the EQ bandwidth when the 3-band  
parametric EQ is operational.  
9
LEVEL Kn o b  
Adjusts the volume of the overdrive or distortion sound.  
1 9 MIDDLE/ FREQ (Fre q u e n cy ) Kn o b  
Adjusts the sound quality of the preamps midrange.  
Also adjusts the EDs midrange frequency when the 3-  
band parametric EQ is operational.  
1 0 O VERDRIVE/ DISTO RTIO N O N / O FF Bu tto n  
Press this to switch the overdrive or distortion on and off  
and when making changes to other settings.  
2 0 BASS/ GAIN Kn o b  
1 1 TYPE VARIATIO N Bu tto n  
Adjusts the sound quality of the preamps lower range.  
Also adjusts the amount of EQ amplification when the 3-  
band parametric EQ is operational.  
Selects the type of overdrive or distortion.  
CHO RUS (p . 2 7 )  
2 1 LEVEL/ TO TAL (To ta l Ga in ) Kn o b  
Adjusts the overall preamp volume level. Also adjusts  
the amount of amplification for the EQ overall when the  
3-band parametric EQ is operational.  
1 2 LEVEL Kn o b  
Adjusts the volume of the chorus sound. The chorus  
sound increases as the knob is turned more to the right.  
2 2 SPEAKER Kn o b  
1 3 CHO RUS O N / O FF Bu tto n  
Press this to switch the chorus on and off and when  
changing other settings.  
Selects the speaker type.  
2 3 PREAMP O N / O FF Bu tto n  
Press this to switch the preamp on and off and when  
changing other settings.  
REV/ DLY (p . 2 7 )  
(Re ve rb / De la y )  
2 4 3 BAN D PARAMETRIC EQ O N / O FF Bu tto n  
Switches the 3-band parametric EQ on and off.  
1 4 LEVEL Kn o b  
Adjusts the volume level of the reverb and delay sounds.  
The reverb or delay sound increases as the knob is  
turned more to the right.  
2 5 SELECT Bu tto n  
Switches the band for 3-band parametric EQ.  
1 5 REV/ DLY O N / O FF Bu tto n  
2 6 SPEAKER O N / O FF Bu tto n  
Press this to switch the speakers on and off and when  
changing other settings.  
Press this to switch the reverb or delay on and off and  
when changing other settings.  
* The PREAMP turns on automatically when the SPEAKER is  
turned on. Additionally, turning off the SPEAKER  
automatically turns off the PREAMP.  
9
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Pa n e l De scrip tio n s  
3 6 N AME/ N S/ MASTER Bu tto n (p . 2 1 , 4 4 )  
Use for naming patches (NAME), making noise  
suppressor settings (NS), and making the master settings  
(MASTER).  
W AH (p . 3 1 )  
2 7 W AH O N / O FF Bu tto n  
Press this to switch the wah on and off and when  
changing other settings.  
3 7 UTILITY Bu tto n  
This is used for making settings for the GT-6Bs overall  
operating environment.  
FX-1 (p . 3 3 )  
2 8 FX-1 O N / O FF Bu tto n  
Press this to switch FX-1 on and off and when changing  
other settings.  
3 8 EZ TO N E Bu tto n (p . 1 6 )  
Use this button when you want to use the EZ tones, and  
when searching for a desired tone.  
FX-2 (p . 3 5 )  
3 9 BAN K/ PATCH Pe d a ls  
Switch patches or banks with these pedals. Press both  
pedals simultaneously to switch to Tuner mode (p. 56).  
2 9 FX-2 O N / O FF Bu tto n  
Press this to switch FX-2 on and off and when changing  
other settings.  
4 0 EFFECT O N / O FF / N UMBER Pe d a l  
Use these to switch effects on and off and to switch patch  
numbers.  
4 1 BYPASS/ CTL (CO N TRO L) Pe d a l (p . 4 6 , 5 5 )  
Use this to switch between bypass and the sound with  
the effects added; you can also use this as a control pedal  
for any of a number of different functions that can be  
assigned to the pedal.  
3 0 PATCH/ VALUE Dia l  
Use this to switch patches and make changes to settings  
values.  
3 1 PARAMETER Bu tto n  
Press to select parameters.  
4 2 Ex p re ssio n Pe d a l  
* To jump to the main parameters, hold down one of these  
buttons while you press the other. With items for which there  
aren’t that many parameters, the GT-6B jumps to the last (or  
initial) parameter.  
Controls volume, wah, and other parameters.  
When you operate the expression pedal, please be  
careful not to get your fingers pinched between the  
movable part and the panel. When using the GT-6B in  
households with small children, take care not to allow  
young children to handle the unit or play with it. An  
adult should always be on hand to provide supervision  
and guidance with the operation of the unit.  
3 2 EXIT Bu tto n  
Use this to undo operations and to return to the Play  
screen (p. 13).  
3 3 W RITE Bu tto n  
Press to store settings.  
4 3 EXP PEDAL SW (Ex p re ssio n Pe d a l Sw itch )  
(p . 4 6 )  
3 4 PEDAL ASSIGN Bu tto n (p . 4 5 )  
Use this to make settings for the expression pedal and  
control pedal.  
Firmly press the front tip of the pedal down to switch the  
effect on and off.  
3 5 TUN ER/ BYPASS Bu tto n (p . 5 5 , 5 6 )  
Sw itch O n / O ff) In d ica to r  
Press to use the tuner and bypass functions.  
Lights up when the effect being controlled with the  
Expression Pedal Switch is on, and goes out when the  
effect is turned off.  
1 0  
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Pa n e l De scrip tio n s  
Re a r Pa n e l  
fig.00-02  
1
2
3 4  
8
9
10 11 12  
5
6 7  
1
2
IN PUT Ja ck  
7
8
DIGITAL O UT Co n n e cto r (p . 5 8 )  
The bass guitar is connected here.  
Outputs digital audio signals.  
O UTPUT LEVEL Kn o b  
SUB EXP PEDAL/ SUB CTL 1 ,2 Ja ck  
(SUB EXP Pe d a l/ SUB CO N TRO L Pe d a l) (p . 4 8  
)
Adjusts the volume level of the output from the output  
Connect an optional expression pedal (such as the EV-5)  
or foot switch (such as the FS-5U) here.  
(1/ 4phone) jack and headphone jacks.  
3
4
O UTPUT R/ L (MO N O ) Ja ck s  
9
MIDI IN / O UT Co n n e cto rs (p . 6 4 )  
Connect an external MIDI device to these connectors to  
transmit and receive MIDI messages.  
These are standard jacks that output unbalanced signals.  
Connect to amps, mixers, or other such devices.  
PHO N ES Ja ck  
1 0 PO W ER Sw itch  
A pair of stereo headphones can be connected to this  
jack.  
Switches the power to the on and off.  
1 1 AC Ad a p to r Ja ck  
5
6
O UTPUT Ja ck s (XLR)  
Connect the included AC adaptor (BRC-series) here.  
These are XLR jacks that provide balanced output.  
SELECT (O u tp u t Se le ct) Sw itch (p . 5 5 )  
This switch setting determines whether the signals  
output from the XLR output jacks are in stereo (L/ R), or  
as direct mono output.  
Hook the AC adaptor cord here to prevent the adaptor  
plug from becoming disconnected.  
1 1  
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Ch a p te r 1 Pla y in g So u n d s  
Ma k in g Co n n e ctio n s  
* To prevent malfunction and/or damage to speakers or other devices, always turn down the volume, and turn off the power on all devices  
before making any connections.  
* Raise the amp volume only after turning on the power to all connected devices.  
* When using mono output, connect the cable only to the OUTPUT L (MONO) jack.  
* Use only specified expression pedals (optional Roland EV-5 or Roland FV-300L and PCS-33). Use of other manufacturer’s products may  
result in damage to the unit.  
fig.01-01  
Bass Guitar  
AC Adaptor  
BRC-series  
Stereo  
Headphones  
EV-5  
FV-300L  
Bass Amp  
etc.  
Mixer  
FS-5U  
FS-5L  
etc.  
* To prevent the disruption of power to your unit (should the  
plug be pulled out accidentally), and to avoid applying undue  
stress to the AC adaptor jack, anchor the power cord using the  
cord hook, as shown in the illustration.  
* The pin assignment for the OUTPUT (XLR) connector  
connectors is as shown below. Before making any connections,  
make sure that this pin assignment is compatible with that of  
all your other devices.  
fig.01-02  
fig.01-50  
1: GND  
2: HOT  
3: COLD  
For more on how to use the OUTPUT (XLR) connectors,  
refer to p. 55  
* When using the unit with an expression pedal connected to the  
SUB EXP PEDAL/SUB CTL 1,2 jack, set Minimum Volume  
of an expression pedal to the “MIN” position.  
1 2  
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Ch a p te r 1 Pla y in g So u n d s  
* When using the GT-6B with a foot switch (the optional FS-  
5U) connected to the SUB EXP PEDAL/SUB CTL 1,2 jack,  
set the polarity switch as shown in the following.  
Tu rn in g O n th e Po w e r  
Once the connections have been completed, turn on power to  
your various devices in the order specified. By turning on  
devices in the wrong order, you risk causing malfunction  
and/ or damage to speakers and other devices.  
fig.01-03  
1 . Before you turn the power on, make sure of the  
following points.  
Polarity Switch  
Are all external devices properly connected?  
* You can use the special (optional Roland) PCS-31 connector  
cord to connect two foot switches.  
Is the volume on the GT-6B, your amp, and all other  
connected devices turned down to the minimum level?  
fig.01-04  
* The GT-6B' s volume is adjusted with the OUTPUT LEVEL  
knob on the rear panel. Turning this completely to the left  
(counterclockwise) sets the volume to the minimum level.  
PCS-31  
2 . Switch ON the POWER switch on the GT-6Bs rear  
panel.  
White  
Red  
The display changes, and the following appears in the  
display. After a brief interval (a few seconds), the unit  
switches to regular performance mode. The screen that  
appears at that point is called the Play screen.”  
fig.01-05  
When using the unit with a foot switch connected to the  
SUB EXP PEDAL/ SUB CTL 1,2 jack, make the settings  
given on p. 63.  
* When the GT-6B is turned on, the patch most recently selected  
when the power was last turned off is selected.  
* This unit is equipped with a protection circuit. A brief interval  
(a few seconds) after power up is required before the unit will  
operate normally.  
3 . Next, turn on the power to the bass amp (power amp).  
Ad ju stin g th e O u tp u t Le ve l  
Adjust the GT-6Bs output level with the OUTPUT LEVEL  
The explanations in this manual include illustrations that  
depict what should typically be shown by the display.  
Note, however, that your unit may incorporate a newer,  
enhanced version of the system (e.g., includes newer  
sounds), so what you actually see in the display may not  
always match what appears in the manual.  
knob on the rear panel.  
* Turn the knob to the marked range to set the volume to a  
standard level.  
fig.01-06  
1 3  
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Ch a p te r 1 Pla y in g So u n d s  
N u m b e rs  
W h a t is a Pa tch ?  
The number appears at the left side of the right display, and  
When performing on your bass, you may select a variety of  
different tones according to what and where you are playing.  
The effects you want to use and the parameter settings (knob  
positions) will vary depending on the tone.  
is indicated by a numeral from 1through 4.”  
Se le ctin g Pa tch e s  
You can store combinations, or sets,of volume level and  
other of these parameter settings, and by using the pedals to  
switch these sets, you can change tones instantly. Each of these  
stored sets is called a patch.The GT-6B can store 80 User  
patches,the content of which you can change as you like,  
along with 40 Preset patcheswhich cannot be changed or  
overwritten. These 120 patches are divided into groups called  
banks,with each bank containing four patches.  
Ho w to Sw itch Pa tch e s  
Patches are switched by rotating the PATCH/ VALUE dial  
while in the Play screen.You can also switch patches by  
pressing the PATCH pedals.  
fig.01-10  
Patches within each bank are distinguished by the patch  
number(1-4).  
fig.01-07  
Preset Bank 0 (P0)  
ch  
Preset Bank 1 (P1)  
User Bank 20 (u0)  
ch  
ch  
When you turn the PATCH/ VALUE dial to the right  
(clockwise) or press the PATCH pedal, the patch  
User Bank 1 (U1)  
Patch  
Patch  
Patch  
Patch  
numbers are switched in ascending order, i.e., 1 2 3  
4 (next bank) 1 2 ...etc.  
When you turn the PATCH/ VALUE dial to the left  
(counterclockwise) or press the PATCH  
pedal, the  
Use r Ba n k s (U1 –U0 , u 1 –u 0 )  
patch numbers are switched in descending order, i.e., 4  
3 2 1 (bank before the current bank) 4 3 →  
...etc.  
These are indicated by a U*or u*appearing in the left display.  
fig.01-08  
* You cannot switch patches unless the Play screen (p. 13) is  
displayed. Press [EXIT] (p. 10) to return to the Play screen.  
* You cannot switch patches with the PATCH/VALUE dial  
when the dial function (p. 62) is set to VALUE only.  
Pre se t Ba n k s (P1 –P0 )  
These are indicated by a P*appearing in the left display.  
fig.01-09  
Number  
* Although you cannot overwrite the Preset patches, you can  
change (edit) a Preset patch’s settings. You can then save the  
resulting changes in the setting as a User patch.  
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Ch a p te r 1 Pla y in g So u n d s  
Tu rn in g Ea ch o f th e Effe cts in a  
Pa tch O n a n d O ff  
Tu rn in g O ff th e Po w e r  
1 . Before turning off the power, confirm the following.  
You can use pedals 14 to switch on and off the individual  
effects that are used in a patch. Each pedal shows the names  
of two effects; the effect that you are currently able to switch  
on and off is indicated in the lower row of the right display.  
You can also change these with [PEDAL ASSIGN] (p. 45).  
Is the volume on the GT-6B, your amp, and all other  
connected devices turned down to the minimum level?  
2 . Turn off the power to the bass amp (power amp) and  
3 . Turn the GT-6Bs power off.  
Sw itch in g Pa tch e s b y Sp e cify in g th e Ba n k  
a n d N u m b e r  
The GT-6B has been set at the factory so that you can  
switch patches using the PATCH/ VALUE dial or the  
PATCH  
and PATCH  
pedals, but you can change  
the settings by switching patches directly with the bank  
and number. For more detailed information, refer to p. 60.  
Ab o u t th e In fo rm a tio n Ap p e a rin g  
in th e Disp la y  
The following information is shown in the display.  
fig.01-11  
Number Patch Name  
Bank  
Effects  
If th e Pa tch Do e s N o t Sw itch  
On the GT-6B, you cannot switch patches in any screen other  
than the Play screen. If you are having this problem, press  
[EXIT] to return to the Play screen.  
1 5  
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Ch a p te r 2 Cre a tin g Yo u O w n Fa vo rite To n e s (Pa tch e s)  
Ge ttin g th e To n e s Yo u W a n t-  
Fa st (EZ To n e )  
Ad ju stin g th e To n e s w ith th e  
Kn o b s  
In addition to tones (patches) that you can actually use in  
performances, the GT-6B also features internal sample  
settings that are very useful when you want to create such  
tones on your own. This feature is called EZ Tone.”  
The GT-6B panel features fifteen knob controls. These knobs  
let you make changes to the selected patchs tone quickly and  
easily.  
* There are also other methods you can use to adjust the tone.  
Using the EZ Tone function lets you quickly find tone  
For more details, refer to p. 19.  
fig.02-03  
settings similar to the ones you want to create.  
fig.02-01  
2
3
4
1
CO MP ATK (Co m p re sso r a tta ck )  
This gives you a strong attack from picking when BOSS  
Comp, D-Compis selected as the type. The attack  
becomes sharper as you turn the knob to the right, giving a  
sound with greater bite.  
1 . Press [EZ TONE].  
2 . Rotate the VALUE dial to select the settings resembling  
those for the tone you want.  
3 . Press the ON/OFF buttons to turn effects on and off,  
LIMITER THR (Lim ite r th re sh o ld )  
and turn the knobs to adjust the tone.  
fig.02-02  
This adjusts the volume level at which the limiter is activated  
when Rack 160Dis selected as the type. As the knob is  
turned to the left, the limiter effect is apparent at lower  
volume levels.  
When Vtg Rack Uis selected as the type, this adjusts the  
volume of the sound input to the limiter. The effect becomes  
deeper as you turn the knob to the right.  
CO MP SUS (Co m p re sso r su sta in )  
This adjusts the amount of sustain when BOSS Comp, D-  
Compis selected as the type. More of the effect is added as  
you turn the knob to the right, lengthening the sustain time,  
while also bringing out noise that occurs when you are not  
playing the instrument.  
ON/OFF button  
* You can press [EZ TONE] again to compare the tone in use  
before entering EZ Tone mode with the present tone.  
4 . Press [EXIT] to return to the Play screen.  
LIMITER RATIO  
The tone switches to the tone selected in EZ Tone.  
This adjusts the limiters compression ratio when Rack  
160Dor Vtg Rack Uis selected as the type. The  
compression gets stronger as the knob is turned to the right.  
* Pressing [EXIT] while the readout is flashing (when the tone  
prior to switching to EZ Tone mode is selected) returns you to  
the patch that was selected before going into EZ Tone mode.  
* By pressing [TYPE VARIATION], you can then switch the  
COMP/LIMITER type.  
* If you want to save a tone you’ve created, use the Write  
procedure (p. 23) to save it to a User patch.  
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Ch a p te r 2 Cre a tin g Yo u O w n Fa vo rite To n e s (Pa tch e s)  
CO MP/ LIMITER LEVEL  
SPEAKER  
Adjusts the compressor/ limiter volume level. The volume  
increases as the knob is turned to the right.  
Selects the speaker type.  
When ORIGINAL is selected, you can select the speakers that  
are best suited for the PREAMP TYPE settings.  
O D/ DIST DRIVE (O ve rd rive / Disto rtio n Drive )  
Adjusts the degree of distortion in the overdrive or distortion  
sound. The distortion gets stronger as the knob is turned to  
the right.  
In addition, when [SELECT] is pressed, the PREAMP knobs  
then function as control knobs for adjusting the 3-band  
parametric EQ.  
The adjustment screen for each band (LOW, MID, HIGH)  
appearing in the display alternates each time you press  
[SELECT]. You can adjust the Q, frequency, and gain for each  
band.  
O D/ DIST LEVEL (O ve rd rive / Disto rtio n Le ve l)  
Adjusts the volume of the overdrive or distortion sound. The  
volume increases as the knob is turned to the right.  
* By pressing [TYPE VARIATION], you can then switch the  
OVERDRIVE/DISTORTION type.  
Q
This adjusts the Equalizer bandwidth (the range of frequencies  
affected by that EQ control). The bandwidth is narrowed as the  
knob is turned to the right, resulting in a more notched  
equalization. Use higher Q settings to affect specific  
frequencies and give the tone particular qualities. Conversely,  
the bandwidth becomes broader as the knob is turned to the  
left. Use lower Q settings when you want to adjust the overall  
low end or high end and change the overall tone.  
CHO RUS LEVEL  
Adjusts the volume of the chorus sound. The chorus sound  
increases as the knob is turned to the right, deepening the  
effect.  
REV/ DLY LEVEL (Re ve rb / De la y Le ve l)  
Adjusts the volume level of the reverb or delay sounds. The  
reverb or delay sound increases as the knob is turned to the  
right.  
FREQ (Fre q u e n cy )  
Adjusts the center frequency for the equalizer. The frequency  
Only the reverb sound is adjusted when Fx Select (p. 27) is  
set to R&D (Reverb&Delay). When SOS (SoundOnSound) is  
selected, this adjusts the playback level.  
GAIN  
Adjusts the volume level for the equalizer adjusted with the  
Q and FREQ settings above. The volume level for the  
frequency range is boosted more as the knob is turned  
further to the right of center; turning the knob to the left of  
the center position cuts those frequencies.  
PREAMP TYPE  
Selects the preamp type.  
PREAMP GAIN  
Adjusts the amount of amplification for the preamp, which  
changes the degree of distortion. The distortion gets stronger  
as the knob is turned to the right.  
TO TAL (To ta l Ga in )  
Adjusts the overall volume level of the 3-band equalizer. The  
overall volume level is boosted more as the knob is turned  
further to the right of center; turning the knob to the left of  
the center position cuts those frequencies.  
PREAMP TREBLE  
Adjusts the sound quality of the preamps upper range. The  
high frequencies are boosted as the knob is turned to the right.  
EFFECT LEVEL  
PREAMP MIDDLE  
Adjusts the overall effect volume level. The volume increases  
as the knob is turned to the right.  
Adjusts the sound quality of the preamps midrange. The  
midrange frequencies are boosted as the knob is turned to  
the right.  
* When the Bypass EXP Mode (p. 55) and Noise Suppressor (p.  
turning this knob does not change the volume of the direct  
sound.  
PREAMP BASS  
Adjusts the sound quality of the preamps lower range. The  
low frequencies are boosted as the knob is turned to the right.  
When you want to save a tone created with EZ Tone, or  
changed with the knob controls, use the Write procedure  
PREAMP LEVEL  
Adjusts the preamp volume level. The volume increases as  
the knob is turned to the right.  
1 7  
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Ch a p te r 2 Cre a tin g Yo u O w n Fa vo rite To n e s (Pa tch e s)  
3 . To select another effect to be switched on and off,  
Ad d in g a n d O m ittin g Effe cts  
repeat Steps 1 and 2.  
You can switch the internal effects on and off, which lets you  
change tones by adding and omitting effects.  
4 . Press [EXIT] to return to the Play screen.  
Sw itch in g Effe cts w ith th e Pe d a ls  
Usin g th e Bu tto n s to Sw itch  
Effe cts O n a n d O ff  
The GT-6B is set at the factory so that you can use Pedals 1”  
through 4to switch specific effects on and off. The names  
of effects that can be controlled with these pedals appear in  
the lower row of the display.  
You can switch each of the internal effects on and off with the  
respective effect ON/ OFF button.  
fig.02-04  
* The effects that can controlled can be selected individually for  
each patch (p. 45).  
fig.02-06  
1,2,3  
4
1
1 . Press the ON/OFF button for the effect you want to be  
able to switch on and off.  
1 . Press the pedal corresponding to the effect you want to  
The effect's name and on/ off status appear in the display.  
switch on and off.  
The indicator for an effects ON/ OFF button lights up  
Each time you press the pedal, the effect is alternately  
turned on or off, and the pedal indicator lights up or  
goes out.  
when the effect is enabled, and flashes when that effect is  
disabled.  
fig.02-05  
* While enabled, effects are indicated in capital letters in the  
display; disabled effects are indicated in lowercase letters.  
fig.02-07  
2 . Press the ON/OFF button again to switch the effect on  
or off, changing the indicator light status.  
* The PREAMP turns on automatically when the SPEAKER is  
turned on. Additionally, turning off the SPEAKER  
automatically turns off the PREAMP.  
Effects  
If you want to save a tone for which you have made  
settings, use the Write procedure (p. 23) to save the tone  
to a User patch.  
* As set at the factory, the indicator for the pedal corresponding  
to the effect being used also lights up and goes out in response  
to the effect status.  
* The effect name flashes in the display when that effect is  
turned off.  
* When you press [FX-1], [FX-2], or [WAH] in Step 1, the  
effect set with the FX Select parameter (“Making More  
Detailed Settings with Individual Parameters,” see p. 19) is  
switched on and off.  
1 8  
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Ch a p te r 2 Cre a tin g Yo u O w n Fa vo rite To n e s (Pa tch e s)  
Se ttin g th e Effe ct To n e s  
(Q u ick Se ttin g s)  
Ma k in g Mo re De ta ile d Se ttin g s  
w ith In d ivid u a l Pa ra m e te rs  
Quick Settings are preprogrammed effect settings. Each  
effect in the GT-6B has some available quick settings. You  
can easily create new effect sounds, without having to make  
any detailed adjustments, just by selecting and combining  
The effects include extra parameters in addition to those that  
can be adjusted directly with the knobs.  
You can more precisely create the sounds you want by  
editing each of these parameters individually.  
fig.02-10  
these Quick Settings.  
fig.02-08  
3
3
2
2
1
6
1
4
1 . Press the ON/OFF button for the effect with the  
1 . Press the ON/OFF button for the effect with the  
settings you want to change.  
settings you want to change.  
The parameters for the selected effect appear in the  
display.  
The parameters for the selected effect appear in the  
display.  
2 . Press PARAMETER [  
] [  
] to select the  
* During editing, the most recently edited parameter for each  
effect is indicated in the display.  
parameter whose settings are to be changed.  
When more than one parameter is shown in the display,  
2 . Press PARAMETER [  
] [  
] to display the  
press PARAMETER [  
the parameter to be set.  
] [  
] to move the cursor to  
“Quick Setting--.”  
fig.02-09  
You can jump to the most important parameters by  
pressing PARAMETER [  
down PARAMETER [  
] (or [  
] (or [  
]) while holding  
]). With items for  
3 . Rotate the VALUE dial to select the effect setting you  
which there arent that many parameters, the GT-6B  
want.  
jumps to the last (or first) parameter.  
* When you press [FX-1], [FX-2], or [WAH] in Step 1, the  
settings for the effect selected by means of the FX Select  
parameter (refer to the following item) are switched.  
3 . Rotate the VALUE dial to change the settings value.  
4 . Repeat Steps 2 and 3 for any other parameter settings  
you want to change.  
4 . Press [EXIT] to return to the Play screen.  
5 . If you want to change parameter settings in any other  
effects, repeat Steps 1 through 4.  
6 . Press [EXIT] to return to the Play screen.  
If you want to save a tone for which you have made  
settings, use the Write procedure (p. 23) to save the tone  
to a User patch.  
1 9  
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Ch a p te r 2 Cre a tin g Yo u O w n Fa vo rite To n e s (Pa tch e s)  
Pe d a l Be n d  
Usin g th e Pe d a l Effe cts (W a h ,  
Pe d a l Be n d , Rin g Mo d u la to r)  
fig.02-12  
4
You can use the GT-6Bs expression pedal to obtain wah,  
pedal bend (pedal-controlled pitch bend), and ring  
modulator effects.  
3
W a h  
fig.02-11  
1
4
1 5  
1 . Press [FX-2].  
3
2 . Turn on the FX-2 effect (“Adding Effects”; p. 18).  
* This step is not required if the effect is already on.  
3 . Press PARAMETER [  
] [  
] to select the FX  
Select parameter.  
5
4 . Rotate the VALUE dial to change the setting value to  
“PB.”  
1 . Press [WAH].  
Moving the expression pedal now gives you a pitch bend  
effect.  
2 . Turn on the wah effect (“Adding Effects”; p. 18).  
* This step is not required if the effect is already on.  
* By assigning PB on/off to the expression pedal switch, you can  
switch the Pedal Bend effect on and off by firmly pressing  
down on the pedal’s toe. (p. 46)  
3 . Press PARAMETER [  
] [  
] to select the FX  
Select parameter.  
4 . Rotate the VALUE dial to change the setting value to  
5 . Press [EXIT] to return to the Play screen.  
“WH.”  
A wah effect can now be obtained by moving the  
expression pedal.  
If you want to save a tone for which you have made  
settings, use the Write procedure (p. 23) to save the tone  
to a User patch.  
* By assigning WAH on/off to the expression pedal switch, you  
can switch the wah effect on and off by firmly pressing down  
on the pedal’s toe. (p. 46)  
5 . Press [EXIT] to return to the Play screen.  
If you want to save a tone for which you have made  
settings, use the Write procedure (p. 23) to save the tone  
to a User patch.  
2 0  
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Ch a p te r 2 Cre a tin g Yo u O w n Fa vo rite To n e s (Pa tch e s)  
Rin g Mo d u la to r  
N a m in g To n e s  
fig.02-13  
Each patch can be given a name (Patch Name) consisting of  
4
up to fourteen characters. You can assign whatever names  
you like, such as names suggesting the sound created or the  
name of the song in which it is to be used.  
fig.02-14  
3
3
2
1 5  
1 . Press [FX-1].  
2 . Turn on the FX-1 effect (“Adding Effects”; p. 18).  
1
3
* This step is not required if the effect is already on.  
3 . Press PARAMETER [  
] [  
] to select the FX  
1 . Press [NAME/NS/MASTER] until “Name” appears in  
Select parameter.  
the display.  
4 . Rotate the VALUE dial to change the setting value to  
* Each time [NAME/NS/MASTER] is pressed, the item that  
can be set is changed, following this order:  
“R.M.”  
Name Noise Suppressor Master Bypass EXP Mode  
Foot Volume Effect Chain.  
for R.M (the ring modulator) is controlled with the  
expression pedal.  
fig.02-15  
* By assigning R.M on/off to the expression pedal switch, you  
can switch the Pedal Bend effect on and off by firmly pressing  
down on the pedal’s toe. (p. 46)  
Cursor  
6 . Press [EXIT] to return to the Play screen.  
2 . Press PARAMETER [  
] [  
] to move the cursor to  
the portion of text you want to edit.  
If you want to save a tone for which you have made  
settings, use the Write procedure (p. 23) to save the tone  
to a User patch.  
3 . Rotate the VALUE dial to change the characters.  
* You can use the following functions when changing text  
characters.  
CAPS: Switches the character at the cursor position  
between uppercase and lowercase.  
INS:  
Inserts a blank space at the cursor position.  
DEL:  
Deletes the character at the cursor position and  
shifts the characters following it to the left.  
4 . If you want to edit names further, repeat Steps 2 and 3.  
5 . If you want to save the sequence youve set up, use the  
Write procedure (p. 23) to save it to a User patch.  
Press [EXIT] to return to the Play screen.  
2 1  
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Ch a p te r 2 Cre a tin g Yo u O w n Fa vo rite To n e s (Pa tch e s)  
Ch a n g in g th e O rd e r o f th e  
Effe cts (Effe ct Ch a in )  
You can switch effects on and off even while making the  
settings for the connection order. You can use the ON/  
OFF buttons corresponding to the effects appearing to  
the left and right of the cursor to turn these effects on  
and off.  
You can freely change the order in which the effects are  
connected.  
fig.02-16  
2
2
3
1
1 . Press [NAME/NS/MASTER] until “Effect Chain”  
appears in the display.  
* Each time [NAME/NS/MASTER] is pressed, the item that  
can be set is changed, following this order:  
Name Noise Suppressor Master Bypass EXP Mode-  
Foot Volume Effect Chain.  
fig.02-17  
* Effects are shown in lowercase letters when turned off.  
2 . Use the VALUE dial or PARAMETER [ ] [  
] to  
move the cursor to the point where you want to have  
the effect inserted.  
3 . Press the ON/OFF button for the effect you want to  
insert.  
The selected effect is inserted at the cursor position.  
* You cannot directly switch placement of the noise suppressor  
in the order of effects. However, you can change the placement  
indirectly by changing the order of other effects placed before  
and after the noise suppressor.  
* Use [PEDAL ASSIGN] to assign Foot Volume.  
4 . If you want to change the sequence further, repeat  
Steps 2 and 3.  
5 . If you want to save the sequence youve set up, use the  
Write procedure (p. 23) to save it to a User patch.  
Press [EXIT] to return to the Play screen.  
2 2  
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Ch a p te r 3 Sa vin g th e To n e s Yo u Ha ve Cre a te d  
W rite  
Co p y in g Pa tch e s  
When you want to save a tone created, or a tone for which  
changes have been made, use the Write procedure to save the  
tone to a User patch.  
You can copy a Preset or User patch to another User patch.  
fig.03-03  
3
* The newly created tone will be discarded if the power is turned  
off, or if the tone is switched (“How to Switch Patches’; p. 14)  
before you’ve carried out the Write procedure.  
fig.03-01  
2
2,4  
1,3  
1 . Select the copy-source patch (refer to “How to Switch  
Patches”; p. 14).  
2 . Press [WRITE].  
The content of the display changes, and the GT-6B is  
ready for a User patch to be specified as the copy  
1 . Press [WRITE].  
destination.  
fig.03-04  
The content of the display changes, and the GT-6B is  
Destination Patch  
ready for a patch to be specified as the save destination.  
fig.03-02  
Destination Patch  
3 . Rotate the VALUE dial to select the copy-destination  
patch.  
2 . Rotate the VALUE dial to select the save-destination  
* To cancel the copy, press [EXIT]. The Play screen returns to  
the display.  
patch.  
* Only User patches can be selected as the save destination.  
* This step is unnecessary if the current patch may be used.  
4 . Press [WRITE] once more.  
The GT-6B copies a tone to the copy-destination patch,  
* To cancel the Write procedure, press [EXIT]. The Play screen  
returns to the display.  
and youre returned to the Play screen.  
* The sound of the patch previously stored at the copy  
3 . Press [WRITE] once more.  
destination is permanently deleted once the write is executed.  
The tone is saved to the save-destination patch, and the  
Play screen returns to the display.  
* The sound of the patch previously stored at the save-  
destination is permanently deleted once the write is executed.  
2 3  
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Ch a p te r 3 Sa vin g th e To n e s Yo u Ha ve Cre a te d  
Ex ch a n g in g Pa tch e s  
On the GT-6B, you can exchange the positions of two User  
patches.  
fig.03-05  
4
3
2,5  
1 . Select the exchange-source patch (refer to “How to  
Switch Patches”; p. 14).  
2 . Press [WRITE].  
3 . Press PARAMETER [  
].  
The content of the display changes, and the GT-6B is  
ready for a User patch to be specified as the exchange  
destination.  
fig.03-06  
Destination Patch  
4 . Rotate the VALUE dial to select the exchange-  
destination User patch.  
* To cancel the exchange, press [EXIT]. The Play screen returns  
to the display.  
5 . Press [WRITE] once more.  
The tone stored in the exchange-source patch and the  
tone stored in the exchange-destination patch are  
exchanged, and youre returned to the Play screen.  
2 4  
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Ch a p te r 4 Th e Effe cts Ex p la in e d  
This chapter describes the particular qualities of each of the  
Rack 160D  
Vtg Rack U  
Models the dbx 160x.  
Models the UREI 1178.  
GT-6Bs internal effects, as well as the parameters used to  
control them.  
Atta ck  
(with BOSS Comp, D-Comp)  
The sound that is input to each effect is called the direct  
sound,and the sound modified by the effect is called  
the effect sound.”  
Adjusts the strength of the picking attack when the strings  
are played. Higher values result in a sharper attack, creating  
a more clearly defined sound.  
(with Vtg Rack U)  
All product names mentioned in this document are  
trademarks or registered trademarks of their respective  
owners.  
This adjusts the amount of time that is to pass between the  
point at which the input level exceeds the set threshold level  
and compression begins, and the time at which the  
compression ratio set with the Ratio setting is achieved.  
Compression is applied more rapidly as the value is  
increased.  
The names used for the sounds mentioned in this  
document are intended to be descriptive in nature, used  
solely to identify the equipment whose sound is  
simulated using COSM technology.  
Su sta in  
(with BOSS Comp, D-Comp)  
Boosts low-level signals, adjusting the time over which  
sounds are sustained. Higher values deepen the effect,  
resulting in a longer sustain.  
CO MP/ LIMITER  
(Co m p re sso r/ Lim ite r)  
The compressor is an effect that compresses (or attenuates)  
loud input levels and expands (boosts) low input levels, thus  
evening out the volume to create sustain without distortion.  
It also has the effect of evening out the sound.  
Th re sh o ld  
(with Rack 160D, Vtg Rack U)  
Adjust this as appropriate for the input signal from your  
bass. When the input signal level exceeds this threshold  
level, limiting will be applied. The limiter goes onto effect at  
lower levels as the value is reduced with Rack 160D.  
This controls the input level with Vtg Rack U. Increasing the  
value deepens the effect.  
The limiter is an effect that prevents distortion by  
suppressing input signals that exceed a set value (threshold).  
You can get the same effect achieved with the compressor by  
setting the threshold at a low value.  
(Thres (input)appears in the display.)  
The GT-6Bs COSM technology provides you with four types  
of modeled compressor/ limiter perfectly suited for the bass.  
Ra tio  
(with Rack 160D, Vtg Rack U)  
Adjusts the limiter compression ratio. Higher values create a  
stronger compression effect.  
Parameter  
Value  
On/Off  
Type  
Off, On  
BOSS Comp, D-Comp, Rack 160D,  
Vtg Rack U  
0100  
0100  
Re le a se  
(with Vtg Rack U)  
Attack  
Sustain  
Threshold  
Ratio  
This adjusts the time from when the signal level drops below  
the threshold until when the compression is removed. The  
higher the values set, the more rapidly the compression is  
released, and the more clearly the sound from the next string  
played is heard.  
0100  
1:1:1 (Rack 160D)  
4:120:1 (Vtg Rack U)  
0100  
Release  
Tone  
-50+50  
Level  
0100  
To n e  
(with BOSS Comp)  
O n / O ff  
Adjusts the tone. The higher the value set, the more the high  
frequencies are boosted, resulting in a harder sound.  
Sets the compressor/ limiter effect to ON or OFF.  
Ty p e  
Le ve l  
Selects the compressor/ limiter type.  
Adjusts the volume.  
BOSS Comp  
D-Comp  
Models the BOSS CS-3  
Models the MXR dyna comp.  
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Ch a p te r 4 Th e Effe cts Ex p la in e d  
Custom 2  
Type 2 for custom settings.  
O D/ DIST (O ve rd rive / Disto rtio n )  
This effect distorts the sound to create long sustain. The GT-  
6B provides nine types of distortion with two different  
custom settings.  
W h e n CUSTO M is Se le cte d fo r TYPE  
When the TYPE is set to CUSTOM, you can set the following  
parameters.  
O D: O ve rd rive  
Making CustomOverdrive/ Distortion Settings(p. 52)  
This provides the warm, natural type of distortion that  
occurs naturally when you turn up the volume on a tube  
amp. This effect is often used as an amp pre-booster.  
Parameter  
Value  
Type (12)  
Bottom (12)  
Top (12)  
Low (12)  
High (12)  
OD-2, BD-2, ODB-3, DS-1, MT-2, FUZZ  
-50+50  
-50+50  
-50+50  
-50+50  
DST: Disto rtio n  
This effect features a deep, powerful distortion that is  
difficult to achieve with amp distortion alone.  
Drive  
Adjusts the amount of distortion. The distortion gets more  
intense as the value is increased.  
FUZ: Fu zz  
This effect gives an even more powerful and intense  
Ba ss  
Adjusts the tone of the lower range. The bass is given more  
distortion than you get with regular distortion.  
emphasis as the value is increased.  
Parameter  
Value  
Tre b le  
On/Off  
Type  
Off, On  
Adjusts the tone of the upper range. The treble is given more  
Blues OD, Turbo OD, Bass OD,  
emphasis as the value is increased.  
Distortion, GUV DS, Metal Zone,  
60s FUZZ, Oct Fuzz, MUFF FUZZ,  
Effe ct Le ve l  
Adjusts the volume of the distorted sound.  
Custom 1, Custom 2  
0100  
Drive  
Bass  
-50+50  
Treble  
Effect Level  
Direct Level  
-50+50  
0100  
0100  
Dire ct Le ve l  
Adjusts the level of the Bass direct sound.  
O n / O ff (Effe ct O n / O ff)  
Sets the overdrive/ distortion effect to ON or OFF.  
Ty p e  
Selects the type of distortion.  
Blues OD  
Turbo OD  
Bass OD  
Distortion  
GUV DS  
Models the sound of the BOSS BD-2.  
Models the sound of the BOSS OD-2.  
Models the sound of the BOSS ODB-3.  
Standard distortion sound.  
Models the sound of the Marshall  
GUVNOR.  
Metal Zone  
60s FUZZ  
Oct Fuzz  
The sound of the BOSS MT-2.  
Models the sound of the FUZZFACE.  
Models the sound of the ACETONE  
FUZZ.  
MUFF FUZZ  
Custom 1  
Models the sound of the Electro-Har-  
monix Big Muff.  
Type 1 for custom settings.  
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Ch a p te r 4 Th e Effe cts Ex p la in e d  
Pre De la y  
CHO RUS  
Adjusts the time needed for the effect sound to be output  
after the direct sound has been output. Setting a longer pre-  
delay time results in a doubling effect.  
This is an effect that adds a slightly detuned sound to the  
original bass sound, resulting in a beautiful sound with  
greater depth and breadth. Developed by BOSS, this is one  
effect that is popular the world over.  
Lo w Cu t  
below a specified frequency. When the low end of the chorus  
sound is cut so that the chorus is applied only to the higher  
frequencies, the chorus sound appears only in the harmonics,  
without any modulation of the fundamental frequencies,  
creating a great sound effect for the bass. This setting adjusts  
the frequency at which the low-cut begins to take effect.  
When Flatis selected, the low-cut has no effect.  
*
When the Bypass EXP Mode (p. 55) and Noise Suppressor (p. 44)  
is set to “Off” and only CHORUS or REV/DLY is used, the direct  
sound is output as analog output.  
Parameter  
Value  
On/Off  
Mode  
Off, On  
Mono, Stereo  
Rate  
Depth  
Pre Delay  
Low Cut  
Effect Level  
0100, BPM BPM  
0100  
0.0 msec40.0 msec  
Flat, 55.0 Hz 800 Hz  
0100  
Effe ct Le ve l  
This adjusts the volume level of the chorus sound that is  
mixed with the direct sound. The effect deepens as the value  
is increased.  
O n / O ff (Effe ct O n / O ff)  
Sets the chorus effect to ON or OFF.  
REV/ DLY (Re ve rb / De la y )/  
SO S (So u n d O n So u n d )  
You can select and use the reverb/ delay or Sound On Sound  
with Fx Select.  
Mo d e  
Selects the chorus mode.  
Mono:  
Chorus with the same sound output from both the left and  
right channels.  
* When the Bypass EXP Mode (p. 55) and Noise Suppressor (p.  
the direct sound is output as analog output.  
Stereo:  
This is a stereo chorus effect that adds different chorus  
sounds to the left and right channels.  
Parameter  
Value  
Ra te  
On/Off  
Off, On  
Adjusts the rate of the chorus effect.  
Fx Select  
Reverb, Delay, Reverb&Delay,  
SoundOnSound  
* When set to BPM, the value of each parameter is set according  
to the value of the Master BPM (p. 44) specified for each patch.  
This makes it easy to achieve effect sound settings that match  
the tempo of the song (synchronizing the cycle to one-half or  
one-fourth of the BPM when the set cycle rate is increased).  
O n / O ff (Effe ct O n / O ff)  
Sets the reverb/ delay effect to ON or OFF.  
* This setting is not available when SoundOnSound is selected.  
When setting to the BPM, press PARAMETER [  
display the Master BPM settings screen.  
] to  
Fx Se le ct (Effe cts Se le ct)  
Reverb:  
De p th  
This effect adds reverberation to the sound.  
Adjusts the depth of the chorus effect. To use it for doubling,  
Delay:  
set the value to 0.”  
This effect creates and outputs a delayed sound from the  
direct sound.  
Doubling  
Reverb&Delay:  
You can also use reverb and delay simultaneously.  
With doubling, a slightly delayed sound (short delay  
sound) is added to the original sound, creating an effect  
that sounds like two people playing simultaneously  
(multiple sounds played), for an effect with greater depth.  
SoundOnSound:  
With this effect, a sound is played and recorded, and then  
while playback of that sound repeats (loops), following  
sounds are layered onto the sound one after another.  
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Ch a p te r 4 Th e Effe cts Ex p la in e d  
*
When Sound On Sound is selected, Pedal 4 and the BYPASS/  
CTL pedal function as Sound On Sound controls. For more  
detailed information, refer to “Using Sound On Sound” (p. 54).  
Hig h Cu t  
The high-cut filter cuts the frequencies above the specified  
high-cut filter begins to take effect. When Flatis selected,  
the high-cut filter has no effect.  
REV: Re ve rb  
De n sity  
Adjusts the density of the reverb sound.  
Parameter  
Value  
Type  
Room1, Room2, Hall1, Hall2, Plate  
0.1 s10.0 s (0.1 s step)  
0 ms10 0ms (1 ms step)  
Flat, 55.0 Hz, 110 Hz, 165 Hz, 200 Hz,  
280 Hz, 340 Hz, 400 Hz, 500 Hz,  
630 Hz, 800 Hz  
700 Hz, 1.00 kHz, 1.40 kHz, 2.00 kHz,  
3.00 kHz, 4.00 kHz, 6.00 kHz, 8.00 kHz,  
11.0 kHz, Flat  
Effe ct Le ve l  
Adjusts the volume of the reverb sound.  
Reverb Time  
Pre Delay  
Low Cut  
DLY: De la y  
Hi Cut  
Parameter  
Value  
Type  
Single, Pan  
Density  
Effect Level  
010  
0100  
Delay Time  
0 ms1400 ms, BPM BPM  
(20 ms step)  
Delay Time Fine  
TapTime  
FeedBack  
Hi  
0 ms20 ms (1 ms step)  
0 % 100 %  
0100  
700 Hz, 1.00 kHz, 1.40 kHz, 2.00 kHz,  
3.00 kHz, 4.00 kHz, 6.00 kHz, 8.00 kHz,  
11.0 kHz, Flat  
Ty p e  
This selects the reverb type. You can change the settings to  
obtain simulations of various different spaces.  
Room 1:  
Simulates the reverberation in a small room. Provides the  
bright reverberation of a live room.  
Effect Level  
0120  
Room 2:  
Ty p e  
Simulates the reverberation in a small room. Provides warm  
Select from the following two types.  
reverberations.  
Single:  
This is a conventional delay  
Hall 1:  
This simulates the reverberation of a concert hall. Provides  
clear reverberation that spreads out through the sound space.  
Pan:  
This is a delay effect for use only with stereo output. Delay  
Hall 2:  
times are assigned individually to the left and right channels,  
This simulates the reverberation of a concert hall. Provides a  
providing a tap delay effect.  
fig.04-01  
mild, understated reverberation sound.  
Feedback  
Plate:  
Simulates plate reverberation (a reverb unit that uses the  
vibration of a metallic plate). Provides a metallic sound with  
an extended upper range.  
Effect Level  
Delay Time  
INPUT  
OUTPUT L  
OUTPUT R  
DELAY  
Effect Level  
Tap Time  
Re ve rb Tim e  
Adjusts the length (time) of reverberation.  
De la y Tim e  
This determines the delay time. You can make settings in 20-  
Pre De la y  
Adjusts the time until the reverb sound appears.  
millisecond units.  
* When set to BPM, the value of each parameter is set according  
to the value of the Master BPM (p. 44) specified for each patch.  
This makes it easy to achieve effect sound settings that match  
the tempo of the song (synchronizing the cycle to one-half or  
one-fourth of the BPM when the set cycle rate is increased).  
Lo w Cu t  
The low-cut filter cuts the frequencies below the specified  
frequency. This setting adjusts the frequency at which the  
low-cut filter begins to take effect.  
When setting to the BPM, press PARAMETER [  
display the Master BPM settings screen.  
] to  
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Ch a p te r 4 Th e Effe cts Ex p la in e d  
De la y Tim e Fin e  
Makes fine adjustments (in units of 1 ms) to the delay time.  
Te m p o  
This sets the tempo that determines the length of the loop.  
The CTL pedal indicator flashes at the rate set here.  
When this is set to BPM,you can set the tempo with the  
Number 4 pedal (tap input).  
Ta p Tim e  
(Used Only with Pan)  
Adjusts the delay time of the right channel delay. This setting  
adjusts the right channel delay time relative to the left  
channel delay time, which is referenced as 100%.  
Pla y b a ck Le ve l  
Sets the volume level of the loop as it is played back.  
Fe e d b a ck  
Feedbackrefers to the return of a delay signal back to the  
input. This parameter adjusts the amount of signal returned.  
Higher values increase the number of the delay repeats.  
PREAMP/ SPEAKER  
COSM technology is used to simulate the distinguishing bass  
amp characteristics in the Preampsection, and is used to  
simulate various speaker sizes and cabinet constructions in  
Speaker Simulator.”  
Hig h Cu t  
The high-cut cuts the frequency component above the set  
frequency. This parameter adjusts the frequency where the  
high-cut starts working. When set to Flat,the high-cut does  
not affect the sound.  
Pre a m p  
De la y Le ve l  
Adjusts the volume of the delay sound.  
Parameter  
Value  
On/Off  
Type  
Off, On  
FLIP TOP, B MAN, BASS 360, T.E.,  
SESSION, CONCERT 810  
Off, On  
R&D: Re ve rb & De la y  
Bright  
Off, On  
Response  
Enhancer  
Pre Shape  
Gain  
Treble  
Ultra Hi  
Middle  
Mid Frequency  
Bass  
Ultra Lo  
Level  
BASS, FLAT  
0100  
Off, 1, 2  
0100  
0100 (or -50+50)  
Off, On  
0100 (or -50+50)  
220 Hz, 800 Hz, 3.0 kHz  
0100 (or -50+50)  
-, 0, +  
SO S: So u n d O n So u n d  
For more detailed instructions on using Sound On Sound,  
refer to p. 54.  
Parameter  
Value  
SOSMode  
Quantize  
HiQuality, LongTime  
Off, On  
Tempo  
Playback Level  
60160, BPM  
0100  
0100  
O n / O ff (Effe ct O n / O ff)  
Sets the preamp effect to ON or OFF.  
SO SMo d e (So u n d O n So u n d Mo d e )  
Selects the recording mode.  
Ty p e  
Selects the type of preamp.  
HiQuality:  
This mode gives priority to higher sound quality. You can  
record approximately 3 seconds of sound.  
FLIP TOP  
B MAN  
Models the Ampeg B-15.  
LongTime:  
Models the Fender Bassman 100.  
Models the acoustic 360.  
This mode gives priority to longer recording time. You can  
BASS 360  
T.E.  
record approximately 6 seconds of sound.  
Models the Trace Elliot AH600SMX.  
Models the SWR SM-400.  
SESSION  
CONCERT 810  
Q u a n tize  
When Quantize is set to ON, the length of the loop is  
adjusted automatically according to the tempo set in  
Tempo(next item), even if the position at which recording  
was stopped is somewhat off.  
Models the Ampeg SVT.  
Ga in  
Adjusts the amount of amp distortion.  
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Ch a p te r 4 Th e Effe cts Ex p la in e d  
Tre b le  
Adjusts the tone of the upper range.  
W h e n Ty p e is Se t to CO N CERT 8 1 0  
Brig h t O ff, O n  
Turns the bright setting on/ off. Turn this on to make the  
Mid d le  
sound brighter.  
Adjusts the tone of the midrange.  
Ultra Hi O ff, O n  
This controls the ultra high-frequency range lying beyond treble.  
* While some amps do not feature a middle control, this control  
still functions even when simulating such amps. If you want  
to recreate the sound as output by the original amp, set Middle  
to “0.”  
Ultra Lo , 0 , +  
This controls the character of the lower range.  
Mid d le Fre q (Mid d le Fre q u e n cy )  
This control adjusts the center frequency of the frequency  
range adjusted with the Middle control.  
Sp e a k e r  
* You cannot set this parameter when TYPE is set to “BASS  
360” (it is not displayed).  
Parameter  
Value  
On/Off  
Type  
Off, On  
1x15, 1x18, 2x15, 4x10, 8x10,  
Ba ss  
ORIGINAL  
Center, 1 cm10 cm  
0100  
Adjusts the tone of the lower range.  
Mic Setting  
Mic Level  
Direct Level  
Le ve l  
0100  
Adjusts the volume level for the overall preamp.  
In addition to these general controls, also included are the  
following controls particular to each amp.  
O n / O ff (Effe ct O n / O ff)  
Sets the speaker effect to ON or OFF.  
W h e n Ty p e is Se t to FLIP TO P  
Brig h t O ff, O n  
* The PREAMP turns on automatically when the SPEAKER is  
turned on. Additionally, turning off the SPEAKER  
automatically turns off the PREAMP.  
Turns the bright setting on/ off. Turn this on to make the  
sound brighter.  
TYPE  
This selects the speaker type.  
Re sp o n se BASS, FLAT  
This controls the overall amp characteristics. Select the  
position corresponding to the characteristics for one of the  
two types of sound.  
1x15”  
Models the Trace Elliot 1518.  
Models the SWR Big Ben.  
Models the Acoustic 402.  
Models the SWR Goliath.  
Models the Ampeg 810E.  
1x18”  
2x15”  
W h e n Ty p e is Se t to B MAN  
De e p O ff, O n  
4x10”  
8x10”  
This switch changes the character of the lower range.  
ORIGINAL  
Built-in speaker for the amp selected in  
Type.(*)  
W h e n Ty p e is Se t to BASS 3 6 0  
Brig h t O ff, O n  
(*) The following speaker connections are assumed: 810E (8 x  
10) for the CONCERT 810; Goliath (4 x 10) + Big Ben (1 x  
18) for the SESSION; and 1048 (4 x 10) + 1518 (1 x 15)  
for the T.E.”  
Turns the bright setting on/ off. Turn this on to make the  
sound brighter.  
W h e n Ty p e is Se t to T.E.  
Pre Sh a p e O ff,1 , 2  
Mic Se t. (Mic Se ttin g )  
This simulates the microphone position. Centersimulates  
the conditions when the microphone is pointed at the middle  
of the speaker cone. 110 cmindicates the distance  
separating the microphone from the center of the speaker  
cone.  
This is a shape switch that adds a particular nuance to the  
midrange.  
W h e n Ty p e is Se t to SESSIO N  
En h a n ce r 0 –1 0 0  
This controls the clarity and presence of the sound.  
Mic Le ve l  
Adjusts the volume of the microphone  
3 0  
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Ch a p te r 4 Th e Effe cts Ex p la in e d  
Dire ct Le ve l  
Adjusts the volume of the direct sound.  
Le ve l  
Adjusts the overall volume level of the 3-band equalizer. The  
volume level is boosted more as the knob is turned further to  
the right of center; turning the knob to the left of the center  
position cuts those frequencies.  
3 BAN D PARAMETRIC EQ  
This is a 3-band parametric equalizer allowing EQ for the  
lower range, midrange, and upper range.  
W AH  
* Each press of [SELECT] takes you to the next available  
The wah effect creates a unique tone by changing the  
frequency response of a filter.  
selection for the band, in this order: Lo Mid High Lo.  
With WAH, you can select the type to be used from the  
following.  
Parameter  
Value  
On/Off  
Low Q  
Off, On  
0.516  
Pedal Wah  
Touch Wah  
Auto Wah  
Low Frequency  
Low Gain  
Mid Q  
Mid Frequency  
Mid Gain  
31 Hz500 Hz  
-20 dB+20 dB  
0.516  
164 Hz2.6 kHz  
-20 dB+20 dB  
0.516  
Parameter  
Value  
On/Off  
Off, On  
High Q  
FX Select  
Pedal Wah, Touch Wah, Auto Wah  
High Frequency  
High Gain  
Total Gain  
1.0 kHz16 kHz  
-20 dB+20 dB  
-20 dB+20 dB  
O n / O ff (Effe ct O n / O ff)  
Switches the Wah effect on and off.  
O n / O ff (Effe ct O n / O ff)  
Switches the 3-band parametric EQ effect on and off.  
FX Se le ct (Effe ct Se le ct)  
Selects the wah effect function.  
* The following parameters affect the Lo, Mid, and High EQ  
together.  
W H: Pe d a l W a h  
The Expression pedal is used for real-time control of the wah  
Q
The range is narrowed as the value is increased.  
This adjusts the equalizer bandwidth (the range of  
frequencies to which the equalizer is applied). The  
bandwidth is narrowed as the value is increased, resulting in  
a more precise (notched) equalization. Use higher Q  
settings to affect specific frequencies and give the tone  
particular qualities. Conversely, the bandwidth becomes  
broader as the value is lowered. Use lower Q settings when  
you want to adjust the overall low end or high end and  
change the overall tone.  
effect.  
The GT-6Bs expression pedal automatically switches to the  
wah pedal function when WAHis selected in FX Select.  
Parameter  
Value  
Type  
CRY WAH, VO WAH, Bass WAH,  
Custom1, Custom2, Custom3  
0100  
0100  
Pedal Position  
Level  
Ty p e  
Fre q (Fre q u e n cy )  
Adjusts the EDs center frequency (for the range affected).  
Selects the type of wah effect.  
The frequency (upper range) increases as the value is raised.  
CRY WAH  
Models the 70s sound of the CRY BABY  
pedal.  
Ga in  
VO WAH  
Models the sound of the VOX V846.  
Adjusts the volume level for the equalizer adjusted with the  
Q and FREQ settings above. The volume level for the  
frequency range is boosted more as the knob is turned  
further to the right of center; turning the knob to the left of  
the center position cuts those frequencies.  
Bass WAH  
A broader wah that features a variable  
range, making it suitable for the bass range.  
Custom 13  
Custom wah sounds that are created by  
editing the parameters.  
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Ch a p te r 4 Th e Effe cts Ex p la in e d  
Down:  
W h e n Ty p e is Se t to Cu sto m 1 –3  
You can make settings for the following parameters when  
TYPE is set to Custom 13.  
The filter falls from higher to lower frequencies in response  
to the input level.  
Se n s  
Making CustomPedal Wah Settings (p. 53)  
according to the polarity setting. Higher values result in a  
stronger response, such that the filter responds with great  
sensitivity even when the strings are played lightly.  
Parameter  
Value  
Type (13)  
CRY WAH, VO WAH, Bass WAH  
Q (13)  
-50+50  
-50+50  
-50+50  
-50+50  
Range Low (13)  
Range High (13)  
Presence (13)  
Fre q (Fre q u e n cy )  
This adjusts the reference frequency for the Wah effect.  
Pe a k  
Pd l Po sitio n (Pe d a l Po sitio n )  
This adjusts the position of the wah pedal.  
This adds a particular character to the sound. Higher values  
produce a stronger tone which emphasizes the wah effect more.  
* This parameter is actually controlled with the expression pedal.  
De p th  
This adjusts the depth of the effect.  
Le ve l  
Adjusts the volume.  
Le ve l  
Adjusts the volume.  
TW : To u ch W a h  
The filter behaves differently, depending on the volume level  
of the instrument being input. This provides a unique effect  
whereby the filter changes according to how you play.  
AW : Au to W a h  
This allows you to have the filter change cyclically or in  
response to the instruments volume, as with Touch Wah.  
Parameter  
Value  
Parameter  
Value  
Mode  
Polarity  
Sens  
Frequency  
Depth  
Peak  
LPF, BPF, HPF  
Up, Down  
0100  
0100  
0100  
Mode  
LPF, BPF,  
Rate  
Depth  
0100, BPM BPM  
0100  
0100  
0100  
Down, Up  
0100  
Frequency  
Peak  
Polarity  
Sensitivity  
Level  
0100  
0100  
Level  
Mo d e  
0100  
Selects the wah mode.  
Mo d e  
Selects the wah mode.  
LPF (Low Pass Filter):  
This creates a wah effect over a wide frequency range,  
including the low end.  
LPF (Low Pass Filter):  
This creates a wah effect over a wide frequency range,  
BPF (Band Pass Filter):  
This creates a wah effect in a narrow range of midrange frequencies.  
including the low end.  
BPF (Band Pass Filter):  
This creates a wah effect in a narrow range of midrange  
HPF (High Pass Filter):  
This creates a wah effect over a wide range of frequencies in  
frequencies.  
the upper range.  
HPF (High Pass Filter):  
This creates a wah effect over a wide range of frequencies in  
Po la rity  
This selects the direction in which the filter changes in  
the upper range.  
response to the input.  
Up:  
The filter rises from lower to higher frequencies in response  
to the input level.  
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Ch a p te r 4 Th e Effe cts Ex p la in e d  
Ra te  
FX-1  
This selects the auto wah cycle.  
With FX-1, you can select the effect to be used from the  
following.  
* When set to BPM, the value of each parameter is set according  
to the value of the Master BPM (p. 44) specified for each patch.  
This makes it easy to achieve effect sound settings that match  
the tempo of the song (synchronizing the cycle to one-half or  
one-fourth of the BPM when the set cycle rate is increased).  
OCTAVE  
ENHANCER  
SLOW GEAR  
DEFRETTER  
When setting to the BPM, press PARAMETER [  
display the Master BPM settings screen.  
] to  
RING MOD (Ring Modulator)  
Parameter  
Value  
De p th  
On/Off  
FX Select  
Off, On  
Adjusts the depth of the auto wah effect.  
Octave, Enhancer, Slow Gear,  
Defretter, Ring Mod  
Fre q (Fre q u e n cy )  
This adjusts the reference frequency for the Wah effect.  
O n / O ff (Effe ct O n / O ff)  
Switches the FX-1 effect on and off.  
Pe a k  
This adds a particular character to the sound. Higher values  
produce a stronger tone which emphasizes the wah effect  
more.  
FX Se le ct (Effe ct Se le ct)  
Selects the effect to be used.  
Po la rity  
O CT: O cta ve  
This adds a sound one octave below the original sound,  
This selects the direction in which the filter changes in  
response to the input.  
resulting in a fatter sound.  
Up:  
The filter rises from lower to higher frequencies in response  
* Use this effect only when playing one note at a time. The  
octave sound does not sound good with chords.  
to the input level.  
* The unit may not operate correctly if the order in which the  
effects are connected is changed so that this is connected after  
FX-2, causing the sound to become muddy and indistinct.  
Down:  
The filter falls from higher to lower frequencies in response  
to the input level.  
Parameter  
Value  
Se n s  
This adjusts the sensitivity at which the filter changes  
according to the polarity setting. Higher values result in a  
stronger response, such that the filter responds with great  
sensitivity even when the strings are played lightly.  
Effect Level  
Direct Level  
0100  
0100  
Effe ct Le ve l  
This adjusts the volume of the sound played one octave  
* When the filter is set to be altered cyclically, set this to “0.”  
below the original sound.  
Le ve l  
Adjusts the volume.  
Dire ct Le ve l  
This adjusts the volume of the original sound.  
EN H: En h a n ce r  
This is an effect that clarifies the contour of the input sound  
by emphasizing the attack of the sound following changes in  
the input level.  
Parameter  
Value  
Sensitivity  
Frequency  
Mix Level  
0100  
800 Hz4.00 kHz  
0100  
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Ch a p te r 4 Th e Effe cts Ex p la in e d  
Se n s  
De p th  
This adjusts the Enhancer sensitivity. The more the value is  
increased, the more softly you can play and still have the  
effect applied.  
This controls the ratio of harmonics. Raising the value  
increases the harmonic components, resulting in a unique  
and different tone.  
Fre q (Fre q u e n cy )  
Sets the frequency range for the enhanced sound.  
Le ve l  
Adjusts the volume.  
Mix Le ve l  
Adjusts the amount of enhanced sound added to the mix.  
R.M: Rin g Mo d u la to r  
This effect combines the bass sound with the sound from the  
internal oscillator, creating a sound with a pitchless, metallic,  
bell-like character.  
SG: Slo w Ge a r  
This produces a volume-swell effect (similar to how a violin  
Parameter  
Value  
is played).  
Mode  
Normal, Intelligent  
0100  
0100  
Parameter  
Value  
Frequency  
Effect Level  
Direct Level  
Sens  
Rise Time  
0100  
0100  
0100  
Mo d e  
Se n s  
Selects the ring modulator mode.  
This adjusts the sensitivity of the slow gear. When the  
sensitivity is set to a lower value, the effect of the slow gear  
can be obtained only with somewhat stronger picking, while  
no effect is obtained with weaker picking. When the  
sensitivity is raised, the effect is obtained even with weak  
picking.  
Normal:  
This is a regular ring modulator effect.  
Intelligent:  
The oscillator frequency changes according to the pitch of the  
input sound, yielding a sound with more distinct changes in  
pitch, something that differs from the effect you get with the  
Normalsetting. This effect wont sound right unless the  
pitch of the bass is detected correctly. So its best to use this  
effect only when playing notes one at a time.  
Rise Tim e  
This adjusts the time needed for the volume to reach its  
maximum from the moment you begin picking.  
Fre q (Fre q u e n cy )  
Adjusts the frequency of the internal oscillator.  
DEF: De fre tte r  
This effect allows you to use a conventional bass to simulate  
a fretless bass.  
Effe ct Le ve l  
Adjusts the volume of the processed sound.  
Parameter  
Value  
Sens  
0100  
0100  
0100  
0100  
Dire ct Le ve l  
Adjusts the volume of the direct sound.  
Attack  
Depth  
Level  
Se n s  
This controls the sensitivity to the input sound. Adjust this  
setting while playing your bass until you obtain the most  
natural-sounding tone changes.  
Atta ck  
Adjusts the tone of the attack portion of the sound. The tone  
changes more slowly as the value is increased.  
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Ch a p te r 4 Th e Effe cts Ex p la in e d  
12Stage:  
FX-2  
This is a twelve-stage phaser. This produces a phase effect  
With FX-2, you can select the effect to be used from the  
following.  
with greater depth.  
Bi-Phase:  
PHASER  
This is a phaser effect in which two phase shift circuits are  
FLANGER  
connected in series.  
HARMONIST  
PITCH SHIFTER  
PEDAL BEND  
2x2 CHORUS  
AUTO SLAP  
SHORT DELAY  
VIBRATO  
Ra te  
This sets the rate of the phaser effect.  
* When set to BPM, the value of each parameter is set according  
to the value of the Master BPM (p. 44) specified for each patch.  
This makes it easy to achieve effect sound settings that match  
the tempo of the song (synchronizing the cycle to one-half or  
one-fourth of the BPM when the set cycle rate is increased).  
HUMANIZER  
TREMOLO/PAN  
BASS SYNTH  
When setting to the BPM, press PARAMETER [  
display the Master BPM settings screen.  
] to  
Parameter  
Value  
De p th  
On/Off  
FX Select  
Off, On  
Determines the depth of the phaser effect. The swirling effect  
Phaser, Flanger, Harmonist,  
PitchShifter, PedalBend, 2x2Chorus,  
AutoSlap, ShortDelay, Vibrato,  
Humanizer, Tremolo/Pan, BassSynth  
spreads out more as the value is increased.  
Ma n u a l  
Adjusts the center frequency for the phaser effect. The  
swirling effect occurs in a higher range of frequencies as the  
value is increased.  
O n / O ff (Effe ct O n / O ff)  
Switches the FX-2 effect on and off.  
Re so n a n ce  
FX Se le ct (Effe ct Se le ct)  
Selects the effect to be used.  
Adjusts the resonance (the amount of feedback). Increasing  
the value emphasizes the effect, creating a more unusual  
sound.  
PH: Ph a se r  
This effect adds a rotating, swirling character to the sound.  
Although it resembles the flanger effect, the sense of swirling  
from the phaser is mellower and more natural.  
Ste p  
This turns the step function on and off. When the step  
function is turned on, changes in the sound occur in steps.  
Ste p Ra te  
Parameter  
Value  
This adjusts the rate at which the step effect occurs. Raising  
the value increases the resolution (steps are shorter).  
Type  
4stage, 8stage, 12stage, Bi-Phase  
* When set to BPM, the value of each parameter is set according  
to the value of the Master BPM (p. 44) specified for each patch.  
This makes it easy to achieve effect sound settings that match  
the tempo of the song (synchronizing the cycle to one-half or  
one-fourth of the BPM when the set cycle rate is increased).  
Rate  
Depth  
Manual  
Resonance  
Step  
0100, BPM BPM  
0100  
0100  
0100  
Off, On  
Step Rate  
Level  
0100, BPM BPM  
0100  
When setting to the BPM, press PARAMETER [  
display the Master BPM settings screen.  
] to  
Ty p e  
Le ve l  
Adjusts the volume.  
Selects the arrangement (number of stages) for the phaser  
effect.  
4Stage:  
This is a four-stage phaser. This provides a light phaser.  
8Stage:  
This is an eight-stage phaser. It is a popular phaser effect.  
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Ch a p te r 4 Th e Effe cts Ex p la in e d  
FL: Fla n g e r  
HRM: Ha rm o n ist  
This effect adjusts the shift in pitch according to an analysis  
of the pitch of the bass input, allowing you to create  
harmonics based on Diatonic or user definable scales.  
This produces a flanging effect that gives a sort of twisting”  
character to the sound. Although it resembles the phaser  
effect, the flanger yields a colder, more metallic twisting  
effect.  
* Because of the need to analyze the pitch, chords (two or more  
sounds played simultaneously) cannot be played.  
Parameter  
Value  
Parameter  
Value  
Rate  
0100, BPM BPM  
Voice  
Harmony  
1-Voice, 2-Mono, 2-Stereo  
-2oct+2oct, Scale 1Scale29  
Depth  
0100  
0100  
0100  
0100  
0100  
Manual  
Resonance  
Separation  
Level  
Pre Delay  
Feedback  
Level  
0 ms300 ms, BPM BPM  
0100  
0100  
Key  
Direct Level  
C(Am)B(G#m)  
0100  
Ra te  
This sets the rate of the flanging effect.  
Vo ice  
* When set to BPM, the value of each parameter is set according  
to the value of the Master BPM (p. 44) specified for each patch.  
This makes it easy to achieve effect sound settings that match  
the tempo of the song (synchronizing the cycle to one-half or  
one-fourth of the BPM when the set cycle rate is increased).  
(harmony).  
1-Voice:  
One-voice pitch-shifted sound output in mono.  
When setting to the BPM, press PARAMETER [  
display the Master BPM settings screen.  
] to  
2-Mono:  
Two-voice pitch-shifted sound (HR1, HR2) output in mono.  
De p th  
2-Stereo:  
Adjusts the modulation depth. The twisting effect spreads  
Two-voice pitch-shifted sound (HR1, HR2) output through  
out more as the value is increased.  
the left and right channels.  
Ma n u a l  
Ha rm (Ha rm o n y )  
Adjusts the center frequency for the flanger effect. The  
twisting effect occurs in a higher range of frequencies as the  
value is increased.  
This determines the pitch of the sound added to the input  
sound, when you are making a harmony. You can have this  
sound play up to 2 octaves higher or lower than the input  
sound.  
Re so n a n ce  
Adjusts the resonance (the amount of feedback). Increasing the  
When the scale is set to Scale 1Scale29,harmonies  
corresponding to the user-set scale are produced.  
The following shows the parameters that can be set for User  
scales.  
value emphasizes the effect, creating a more unusual sound.  
Se p a ra tio n  
Adjusts the amount of separation. Raising the value increases  
User 129  
DIR CB  
EFF CB (+/- 2 octave)  
the separation between the left and right sides.  
Le ve l  
Adjusts the volume.  
Creating Harmonist Scales (User Scale)(p. 37)  
Pre Dly (Pre De la y )  
Adjusts the time from when the direct sound is played until  
the harmonist sounds are produced. Normally, you can leave  
this set at 0 ms.”  
* When set to BPM, the value of each parameter is set according  
to the value of the Master BPM (p. 44) specified for each patch.  
This makes it easy to achieve effect sound settings that match  
the tempo of the song (synchronizing the cycle to one-half or  
one-fourth of the BPM when the set cycle rate is increased).  
When setting to the BPM, press PARAMETER [  
display the Master BPM settings screen.  
] to  
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Ch a p te r 4 Th e Effe cts Ex p la in e d  
5 . Press PARAMETER [  
] [  
] to move the cursor,  
Fe e d b a ck  
then rotate the PATCH/VALUE dial to set the User scale.  
This adjusts the feedback amount of the harmonist sound.  
* Only PS1 can be selected when this is set to 2-Mono or 2-  
Stereo.  
Sca le  
You can switch the number of the user scale.  
Le ve l  
DIR (Dire ct)  
Sets the note name of the input sound.  
This adjusts the volume of the harmonist sound.  
Ke y  
EFF (Effe ct)  
This specifies the key of the song you are playing. By  
specifying the key, you can create harmonies that fit the key  
of the song. The key setting corresponds to the key of the  
Sets the note name of the output sound.  
The triangle next to the note name indicates the octave.  
One downward-pointing triangle indicates a note one octave  
below the note displayed; two triangles indicate a two-octave  
drop.  
song (#, b) as follows.  
fig.04-02  
One upward-pointing triangle indicates a note one octave  
above the note displayed; two triangles indicate a two-octave  
rise.  
P.S: Pitch Sh ifte r  
This effect changes the pitch of the original sound (up or  
down) within a range of two octaves.  
Parameter  
Value  
Voice  
Mode  
Pitch  
Fine  
1-Voice, 2-Mono, 2-Stereo  
Fast, Medium, Slow, Mono  
-24 +24  
Dire ct Le ve l  
Adjusts the volume of the direct sound.  
-50+50  
Pre Delay  
Feedback  
Level  
0 ms300 ms, BPM BPM  
Cre a tin g Ha rm o n ist Sca le s (Use r Sca le )  
If the harmony does not sound the way you intend when  
Harmonyis set to any value from -2oct to +2oct,then  
use a User scale.”  
0100  
0100  
0100  
Direct Level  
You can set any of 29 different User scales.”  
Vo ice  
* User scales represent settings common to all patches, so they  
are constantly updated (saved) without the Write procedure  
being carried out. You can carry out Factory Reset for the  
system to restore the settings to their original factory-set  
values (p. 73).  
This selects the number of voices for the pitch shift sound  
(the harmony).  
1-Voice:  
One-voice pitch-shifted sound output in mono.  
2-Mono:  
1 . Press [FX-2], then press PARAMETER [  
] [  
] so  
Two-voice pitch-shifted sound (PS1, PS2) output in mono.  
that “FX Select” is displayed.  
2-Stereo:  
2 . Rotate the PATCH/VALUE dial to select “HRM.”  
Two-voice pitch-shifted sound (PS1, PS2) each output  
through left and right channels.  
3 . Press PARAMETER [ ] [ ] to select “HR1  
Harm” (or “HR2 Harm”), then rotate the PATCH/  
VALUE dial to select a setting from “Scale 1–29.”  
Mo d e  
Selects the pitch shifter mode.  
4 . Press PARAMETER [  
] a number of times so that  
Fast, Medium, Slow:  
the User scale settings screen is displayed.  
fig.04-03  
This is a normal pitch shifter capable of inputting chords.  
The response becomes slower as you switch from Fast to  
Medium and then Slow, but the modulation (off-key sounds)  
decreases at the same time.  
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Ch a p te r 4 Th e Effe cts Ex p la in e d  
Mono:  
Pitch Min  
This mode is for the input of individual notes.  
Select this setting when you want to obtain a pedal bend  
effect using an external expression pedal.  
This sets the pitch at the point where the expression pedal is  
fully lifted.  
Pitch Ma x  
* Because of the need to analyze the pitch, chords (two or more  
sounds played simultaneously) cannot be played.  
This sets the pitch at the point where the expression pedal is  
all the way down.  
Pitch  
Pd l Po sitio n (Pe d a l Po sitio n )  
Adjusts the amount of pitch shift (the amount the pitch  
This adjusts the pedal position for pedal bend.  
changes) in semitone steps.  
Effe ct Le ve l  
This adjusts the volume of the pitch bend sound.  
Fin e  
Makes fine adjustments to the pitch shift.  
* “100” units of change in Fine is equivalent to “1” full change  
in pitch.  
Dire ct Le ve l  
Adjusts the volume of the direct sound.  
Pre Dly (Pre De la y )  
Adjusts the time from when the direct sound is played until  
the pitch shifted sounds are produced. Normally, you can  
leave this set at 0 ms.”  
2 CE: 2 x 2 Ch o ru s  
Two separate stereo chorus units are used for the lower and  
upper ranges in order to create a more natural chorus sound.  
* When set to BPM, the value of each parameter is set according  
to the value of the Master BPM (p. 44) specified for each patch.  
This makes it easy to achieve effect sound settings that match  
the tempo of the song (synchronizing the cycle to one-half or  
one-fourth of the BPM when the set cycle rate is increased).  
Parameter  
Value  
Crossover Frequency 100 Hz4.00 kHz  
Low Rate  
0100, BPM BPM  
0100  
0.0 msec40.0 msec  
0100  
Low Depth  
Low Pre Delay  
Low Level  
When setting to the BPM, press PARAMETER [  
display the Master BPM settings screen.  
] to  
Fe e d b a ck  
High Rate  
0100, BPM BPM  
0100  
0.0 msec40.0 msec  
0100  
High Depth  
High Pre Delay  
High Level  
This adjusts the feedback amount of the pitch shift sound.  
Increasing the Feedback level produces an effect whereby the  
sound seems to rise and fall with the reverberations.  
*
Only PS1 can be selected when this is set to 2-Mono or 2-Stereo.  
Xo ve r f (Cro sso ve r fre q u e n cy )  
This parameter sets the frequency at which the direct sound  
is divided into low- and high-frequency ranges.  
Le ve l  
This adjusts the volume of the pitch shift sound.  
Lo Ra te (Lo w Ra te )  
Adjusts the rate of the chorus effect in the lower range.  
Dire ct Le ve l  
Adjusts the volume of the direct sound.  
* When set to BPM, the value of each parameter is set according  
to the value of the Master BPM (p. 44) specified for each patch.  
This makes it easy to achieve effect sound settings that match  
the tempo of the song (synchronizing the cycle to one-half or  
one-fourth of the BPM when the set cycle rate is increased).  
PB: Pe d a l Be n d  
This lets you use the pedal to get a pitch bend effect. The GT-  
6Bs expression pedal automatically switches to the pedal  
bend function when PB is selected.  
When setting to the BPM, press PARAMETER [  
display the Master BPM settings screen.  
] to  
Parameter  
Value  
Lo De p th (Lo w De p th )  
Adjusts the depth of the chorus effect for the lower range. If  
Pitch Min  
Pitch Max  
Pedal Position  
Effect Level  
Direct Level  
-24+24  
-24+24  
0100  
0100  
0100  
you wish to use this as a doubling effect, use a setting of 0.”  
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Ch a p te r 4 Th e Effe cts Ex p la in e d  
Parameter  
Value  
Lo Pre Dly (Lo w Pre De la y )  
Adjusts the time from when the direct sound in the lower  
range is output until the effect sound is output. Extending  
the pre-delay produces the sensation of multiple sounds  
being played (doubling effect).  
Step  
Pitch  
117  
-24 +24  
Length  
Sound  
Attack  
,
,
,
,
,
,
Mute, Stacc, Full  
Less, Thumb, Pluck  
Lo Le ve l (Lo w Le ve l)  
Adjusts the volume of the lower range.  
Creating Original Phrases (User Phrase)(p. 39)  
Hi Ra te (Hig h Ra te )  
Adjusts the rate of the chorus effect for the upper range.  
Lo o p  
When set to OFF,the phrase plays one time, and then  
* When set to BPM, the value of each parameter is set according  
to the value of the Master BPM (p. 44) specified for each patch.  
This makes it easy to achieve effect sound settings that match  
the tempo of the song (synchronizing the cycle to one-half or  
one-fourth of the BPM when the set cycle rate is increased).  
stops. When set to On,the phrase plays continuously.  
Te m p o  
Adjusts the rate for the phrase.  
* When set to BPM, the value of each parameter is set according  
to the value of the Master BPM (p. 44) specified for each patch.  
This makes it easy to achieve effect sound settings that match  
the tempo of the song (synchronizing the cycle to one-half or  
one-fourth of the BPM when the set cycle rate is increased).  
When setting to the BPM, press PARAMETER [  
display the Master BPM settings screen.  
] to  
Hi De p th (Hig h De p th )  
Adjusts the depth of the chorus effect for the upper range. If  
When setting to the BPM, press PARAMETER [  
display the Master BPM settings screen.  
] to  
you wish to use this as a doubling effect, use a setting of 0.”  
Hi Pre Dly (Hig h Pre De la y )  
Se n s  
Adjusts the time from when the direct sound in the upper  
range is output until the effect sound is output. Extending  
the pre-delay will produce the sensation of multiple sounds  
being played (doubling effect).  
Adjusts the sensitivity for the triggering. With low settings,  
softly picked notes will not retrigger the phrase (i.e., the  
phrase will continue playing), but strongly picked notes will  
retrigger the phrase so that it will play back from the  
beginning. With high settings of this parameter, the phrase  
will be retriggered even when you play softly.  
Hi Le ve l (Hig h Le ve l)  
Adjusts the volume of the upper range.  
Effe ct Le ve l  
Adjusts the phrase volume.  
ASL: Au to Sla p  
This effect lets you have phrases play automatically, just by  
Dire ct Le ve l  
Adjusts the volume of the direct sound.  
playing a single string. Simply slap a string to play a phrase.  
* Sounds may become jumbled if large amounts of MIDI data  
are received while Auto Slap is in use.  
Cre a tin g O rig in a l Ph ra se s (Use r Ph ra se )  
In addition to the 20 different prepared phrases, you can also  
create up to ten of your own original phrases (User phrases).  
Parameter  
Value  
Phrase  
Loop  
Preset1Preset20, User1User10  
Off, On  
* User phrases represent settings common to all patches, so they  
are constantly updated (saved) without the Write procedure  
being carried out. You can carry out Factory Reset for the  
system to restore the settings to their original factory-set  
values (p. 73).  
Tempo  
0100, BPM BPM  
Sensitivity  
Effect Level  
Direct Level  
0100  
0100  
0100  
1 . Press [FX-2], then press PARAMETER [  
] [  
] so  
that “FX Select” is displayed.  
Ph ra se  
Selects the phrase played with Auto-Slap.  
When User 110 is selected, the user-set phrase is played.  
The following shows the parameters that can be set for User  
phrases.  
2 . Rotate the PATCH/VALUE dial to select “ASL.”  
3 . Press [ ] a number of times to select “Phrase,” then  
rotate the PATCH/VALUE dial to make the desired  
choice from User 1–10.  
3 9  
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Ch a p te r 4 Th e Effe cts Ex p la in e d  
4 . Press PARAMETER [  
] a number of times until the  
Atta ck  
User Phrase settings screen is displayed.  
Specifies that the note is to be played with an attack.  
fig.04-04  
Less:  
The note is played with no attack. Good for hammering and  
other such techniques.  
Thumb:  
The note is played with the sound as if the string is struck  
5 . Press PARAMETER [  
] [  
] to move the cursor,  
with the thumb.  
then rotate the PATCH/VALUE dial to set the User  
phrase.  
Pluck:  
fig.04-50  
The note is played with the sound as if the string is plucked  
with the index finger.  
Step  
Pitch  
You can express ghost notes by setting Muteand  
specifying Thumbor Pluck.”  
SDD: Sh o rt De la y  
Length  
Sound  
Attack  
This is a delay with the maximum delay time of 400 ms. This  
is an effective way to make the sound fatter.  
Parameter  
Value  
Delay Time  
Feedback  
Effect Level  
0 ms700 ms, BPM BPM  
0100  
0120  
* When you want to place the currently set step at the very end,  
turn the PATCH/VALUE dial clockwise in the settings screen  
for the step that follows it (it does not matter which parameter  
is selected), until “---” appears in the bottom row of the screen.  
De la y Tim e  
Adjusts the delay time.  
* When set to BPM, the value of each parameter is set according  
to the value of the Master BPM (p. 44) specified for each patch.  
This makes it easy to achieve effect sound settings that match  
the tempo of the song (synchronizing the cycle to one-half or  
one-fourth of the BPM when the set cycle rate is increased).  
STEP  
Sets the step number. The number within the phrase is  
displayed.  
When setting to the BPM, press PARAMETER [  
display the Master BPM settings screen.  
] to  
Pitch  
Inputs the pitches of the notes. Specify by how many  
semitones notes are to be raised or lowered.  
Fe e d b a ck  
Feedback refers to returning the delayed signal back into the  
input of the delay. This parameter adjusts the volume that is  
returned to the input. Higher settings result in more delay  
repeats.  
Le n g th  
Inputs the note lengths. Specify the length of notes on the  
score.  
So u n d  
Effe ct Le ve l  
Adjusts the volume of the delay sound.  
This setting determines the manner in which sounds are  
played.  
Mute:  
Mutes are specified as note lengths without the sound being  
played.  
Stacc:  
Staccato, whereby the sound is played extremely briefly.  
Full:  
The note is played for its full specified length.  
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Ch a p te r 4 Th e Effe cts Ex p la in e d  
Mo d e  
VIB: Vib ra to  
The vibrato effect is created by slightly modulating the pitch.  
This sets the mode used to switch the vowels.  
1 Shot:  
Parameter  
Value  
The tone changes from Vowel 1 to Vowel 2 one time only as  
the strings are played. The time required for the change is  
adjusted with the Rate setting.  
Rate  
Depth  
0100, BPM BPM  
0100  
Trigger  
Rise Time  
Off, On  
0100  
Auto:  
The change in tone between the two vowels (Vowel 1 and  
Vowel 2) is repeated.  
Ra te  
Random:  
This adjusts the period of the vibrato.  
Five vowels (a, e, i, o, u) are switched randomly.  
* When set to BPM, the value of each parameter is set according  
to the value of the Master BPM (p. 44) specified for each patch.  
This makes it easy to achieve effect sound settings that match  
the tempo of the song (synchronizing the cycle to one-half or  
one-fourth of the BPM when the set cycle rate is increased).  
(with 1 Shot and Auto)  
Selects the first vowel.  
fig.04-05  
When setting to the BPM, press PARAMETER [  
display the Master BPM settings screen.  
] to  
De p th  
Vowel 1  
Vowel 2  
This adjusts the depth of the vibrato.  
Trig g e r  
Vo w e l 2  
(with 1 Shot and Auto)  
The vibrato is turned on and off with the foot switch.  
Selects the second vowel.  
* This parameter is premised on the trigger being turned on  
with the foot switch only when producing the vibrato effect.  
Use this by assigning it to the CTL pedal or other control (p.  
46).  
Trig g e r  
(with Auto and Random)  
This selects whether or not the tone changes start  
simultaneously as the strings are played.  
It could be said that when 1 Shotis selected, the trigger is  
always on.  
Rise Tim e  
This adjusts the time from the moment the trigger is turned  
on until the set vibrato effect is obtained.  
Se n s  
This adjusts the trigger sensitivity. With the sensitivity at a  
low setting, the trigger is activated only when greater force is  
used to play the strings, but not when the strings are played  
softly.  
HMN : Hu m a n ize r  
This effect changes the sound of the bass guitar into sounds  
resembling the human voice. Applying this after distorting  
the sound with OD/ DIST or other such effect strengthens the  
effect.  
Ra te  
For more on the order in which effects are connected, refer to  
p. 22.  
This adjusts the cycle over which the two vowels change.  
* When set to BPM, the value of each parameter is set according  
to the value of the Master BPM (p. 44) specified for each patch.  
This makes it easy to achieve effect sound settings that match  
the tempo of the song (synchronizing the cycle to one-half or  
one-fourth of the BPM when the set cycle rate is increased).  
Parameter  
Value  
Mode  
1 Shot, Auto, Random  
Vowel1  
Vowel2  
Trigger  
Sensitivity  
a, e, i, o, u  
a, e, i, o, u  
On, Off  
Mode= 1 Shot, Auto  
Mode= 1 Shot, Auto  
When setting to the BPM, press PARAMETER [  
display the Master BPM settings screen.  
] to  
0100  
Rate  
0100, BPM BPM  
De p th  
Depth  
Manual  
Level  
0100  
0100  
0100  
Adjusts the depth of the effect. The transition between  
vowels becomes clearer as the value is increased.  
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Ch a p te r 4 Th e Effe cts Ex p la in e d  
Ma n u a l  
(with Auto)  
SYN : Ba ss Sy n th  
This effect produces a synth bass sound. Two methods are  
used, the Internal Sound Generator methodand the  
Waveform Shaping method.”  
Sets the point at which the two vowels will be switched.  
When set to 50,an equal length of time is used to switch  
Vowel 1 and Vowel 2. When it is set to lower than 50,the  
time for Vowel 1 is shorter. When it is set to higher than 50,”  
the time for Vowel 1 is longer.  
In te rn a l So u n d Ge n e ra to r Me th o d  
The unit detects pitch and attack information in the input  
bass sound and causes the internal sound generator to  
generate sound. Please note the following points.  
Le ve l  
This sets the volume of the humanizer.  
* This function does not work properly with chords. Be sure to  
mute all the other strings and play single notes.  
* If you want to play a string before a previous sound has  
stopped, completely mute the previous sound first, and then  
play the next string with a firm, clear attack.  
T/ P: TREMO LO / PAN  
This provides a tremolo or auto pan effect.  
* Sounds may not be generated correctly if the unit is unable to  
detect the attack.  
Parameter  
Value  
Mode  
Tremolo, Pan  
Wave Shape  
0100  
W a ve fo rm Sh a p in g Me th o d  
The synth bass sound is created by serial processing of the  
input bass sound.  
Rate  
Depth  
0100, BPM BPM  
0100  
Mo d e  
Parameter  
Value  
This selects either the tremolo or auto pan.  
Wave  
Square, Saw, Brass, Bow  
0, -1  
0100  
0100  
0100  
Tremolo:  
Octave Shift  
PWM Rate  
PWM Depth  
Noise Level  
Sens  
This is an effect that cyclically changes the volume.  
Pan:  
This effect alternately switches the volume levels set for the  
left and right sides, making sounds played in stereo appear  
to fly back and forth between the speakers.  
0100  
Hold  
Off, On  
Off, On  
0100  
0100  
-100+100  
0100  
0100  
0100  
Off, On  
-24+24  
-24+24  
0100  
Attack Trigger  
Resonance  
Cutoff Freq  
Depth  
W a ve Sh a p e  
This adjusts how changes in volume level are made. When  
set to lower values, the change occurs smoothly; the change  
becomes progressively more sudden as the value is  
increased.  
Decay  
Synth Level  
Direct Level  
Bend  
Pitch Min  
Pitch Max  
Pedal Position  
Ra te  
This adjusts the cycle for the change in volume.  
* When set to BPM, the value of each parameter is set according  
to the value of the Master BPM (p. 44) specified for each patch.  
This makes it easy to achieve effect sound settings that match  
the tempo of the song (synchronizing the cycle to one-half or  
one-fourth of the BPM when the set cycle rate is increased).  
W a ve  
This selects the type of waveform used as the foundation of  
the bass synthesizer.  
When setting to the BPM, press PARAMETER [  
display the Master BPM settings screen.  
] to  
Square:  
A square wave (  
)is produced by the internal  
sound generator.  
De p th  
Saw:  
Adjusts the depth of the volume change.  
A saw wave (  
generator.  
)is produced by the internal sound  
Brass:  
Waveform shaping outputs a soft sound with a fast attack  
and a sharp edge.  
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Ch a p te r 4 Th e Effe cts Ex p la in e d  
* When using the synth bass with this parameter on, errors may  
occur if the unit is unable to detect the attack properly.  
Completely mute the other strings, and play single notes.  
Bow:  
Waveform shaping outputs a soft sound with no attack.  
O cta ve Sh ift  
(with Square and Saw)  
Re so n a n ce  
This adjusts the filter resonance (the amount of feedback).  
Increasing the value emphasizes the effect, creating a more  
unusual sound.  
This outputs sound one octave below the original sound.  
PW M Ra te (Pu lse W id th Mo d u la tio n Ra te )  
(with Square)  
Cu to ff Fre q (Cu to ff fre q u e n cy )  
This adjusts the frequency at which the harmonic  
components are cut off (the cutoff frequency). This parameter  
determines the tone at the point that the filter movement  
finally stops.  
Modulation is applied to the waveform (Square wave only)  
to create a broader, fatter sound. Higher values increase the  
rate of the modulation.  
PW M De p th (Pu lse W id th Mo d u la tio n De p th )  
(with Square)  
De p th  
This adjusts the PWM depth. When set to 0,no PWM effect  
This adjusts how much the filter shifts. When a positive  
value is set, playing a string causes the filter to go upwards,  
starting from the conditions determined with the cutoff  
frequency. Conversely, the movement is downward when  
the value is negative. The change becomes more dramatic as  
the numerical value is increased.  
is obtained.  
N o ise Le ve l  
This adjusts the noise added to the sound from the sound  
generator. Adding noise gives the synth bass a special type of  
ambience.  
De ca y  
Se n s  
(with Square and Saw, or Attack Trig On)  
This sets the rate for the filters movement. The filter moves  
more slowly as the value is increased.  
This adjusts the input sensitivity.  
In Internal Sound Generator method, although the response  
of the internal sound generator improves as the sensitivity  
value is increased, errors occur more often. Try to set the  
value as high as possible without causing errors.  
In Waveform Shaping method, this lets you adjust the  
sensitivity of the shifting filter in response to the strings as  
they are played when the attack trigger is turned off. Raising  
this value allows the filter to respond with greater sensitivity,  
even when the strings are played softly.  
Sy n th Le ve l  
This determines the volume of the synthesizer sound.  
Dire ct Le ve l  
Adjusts the volume of the direct sound.  
Be n d  
(with Square, Saw)  
Ho ld  
You can use the expression pedal to control the frequency of  
sounds from the internal sound generator.  
Use this by setting the parameter to Onand assigning the  
expression pedal or similar controller to Pdl Position.  
(with Square and Saw)  
This sustains the sound output by the sound generator. You  
can use a control pedal or other such control to hold synth  
bass sounds at the same pitch at which they are played.  
* When using the Hold function, be aware of the importance of  
the order in which the effects are connected. When the noise  
suppressor is connected after FX-2, held synth sounds are not  
output when the bass input sound is stopped. In such cases, be  
sure to place FX-2 ahead of the noise suppressor (p. 22).  
Pitch Min  
(with Square, Saw)  
Sets the pitch produced when the expression pedal is  
released.  
Pitch Ma x  
(with Square, Saw)  
Atta ck Trig (Atta ck Trig g e r)  
(with Brass and Bow)  
Sets the pitch produced when the expression pedal is fully  
depressed.  
This setting determines whether the filter acts according to  
the envelope of the input sound or mechanically by detecting  
the vibration of the strings as they are played. When set to  
OFF, the filter operates in response to the volume of the  
input bass sound, like a touch wah; when set to ON, the filter  
operates more mechanically, as with the Internal Sound  
Generator method, by detecting the degree of attack.  
Pd l Po sitio n (p e d a l p o sitio n )  
(with Square, Saw)  
Adjusts the Pedal Bend pedal position.  
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Ch a p te r 4 Th e Effe cts Ex p la in e d  
N S: N o ise Su p p re sso r  
Master BPM Tap Input  
You can use the CTL pedal to set the Master BPM by  
This effect reduces the noise and hum picked up by the bass.  
Use this when noise that occurs when you are not playing the  
bass becomes noticeable. Since it suppresses the noise by  
monitoring the volume level of the actual bass sound being  
input, it always gives a natural effect.  
means of tap input.  
Depress the CTL pedal two or more times in time with  
the performances tempo, and the Master BPM is set to  
match the timing youve used while depressing the  
pedal.  
Parameter  
Value  
To use the CTL pedal and tap tempo to set the Master  
BPM, set Pedal Assign as follows:  
On/Off  
Threshold  
Release  
Off, On  
0100  
0100  
Quick Settings (p. 46)  
CTL PEDAL:  
BPM (TAP)  
O n / O ff (Effe ct O n / O ff)  
This parameter turns the noise suppressor on/ off.  
Manual Settings (p. 47)  
CTL PEDAL:  
On  
This setting can be made with the PATCH/ VALUE dial.  
CTL PEDAL Target:  
CTL PEDAL Target Min:  
Master BPM (Tap)  
Off  
* You cannot switch the noise suppressor on and off by pressing  
[NAME/NS/MASTER].  
CTL PEDAL Target Max: On  
CTL PEDAL Source Mode: Normal  
Th re sh o ld  
Adjust this parameter as appropriate for the volume of the  
noise. If the noise level is high, a higher setting is  
appropriate. Use a lower setting when the noise level is low.  
* High threshold settings may prevent sounds from being  
output when you play with your bass volume turned down.  
FV: Fo o t Vo lu m e  
This is a volume control effect.  
Re le a se  
This is normally controlled with the expression pedal.  
Adjusts the time from when the noise suppressor begins to  
function until the noise level reaches 0.”  
Parameter  
Value  
Level  
0100  
Le ve l  
MASTER  
This sets the volume level for the Foot Volume.  
Parameter  
Value  
* Note the following points when Bypass EXP Mode (p.55) is  
set to “Off.”  
Effect Level  
Master BPM  
0120  
40250  
Analog bypass sound is output when all effects are  
set to OFF,and the volume level cannot be  
controlled using the Foot Volume.  
Effe ct Le ve l  
Adjusts the overall volume of the processed sound.  
When CHORUS or REV/DLY are the only effects  
being used, only the analog bypass sound is output  
for the direct sound, so only the effect sound's  
volume level is controlled with Foot Volume.  
*
When the Bypass EXP Mode (p. 55) and Noise Suppressor (p.  
direct sound is output as analog output. In this case, EFFECT  
LEVEL does not change the volume of the direct sound.  
Ma ste r BPM  
Adjusts the BPM value for each patch.  
* BPM (beats per minute) indicates the number of quarter note  
beats that occur in one minute.  
* When you have an external MIDI device connected, the  
Master BPM is synchronized to the external MIDI device’s  
tempo, so you cannot set the Master BPM. If you want to be  
able to set the Master BPM, set the “MIDI: Sync Clock” (p.  
65) to Internal.  
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Ch a p te r 5 Se ttin g th e Pe d a l Fu n ctio n s (Pe d a l Assig n )  
Se ttin g s fo r Usin g th e  
Ex p re ssio n Pe d a l  
These settings can be saved separately to individual  
patches.  
Normally, FV(Foot Volume) is assigned to the  
Se le ctin g Ea ch Effe ct to Be Tu rn e d  
O n a n d O ff w ith th e N u m b e r Pe d a ls  
expression pedal, allowing it to be used as a volume  
pedalto control the volume level.  
You can change the effects that are turned on and off with  
* When bypass is in effect, you may be unable to control the  
the number pedals 14.  
volume level with the expression pedal. In such instances, set  
1 . Press PARAMETER [  
] [  
] in the Play screen to  
Bypass EXP Mode to “On” (p. 55).  
display the following screen.  
fig.05-01  
Se ttin g th e Ra n g e o f th e Vo lu m e  
Ch a n g e  
You can set the minimum and maximum values determining  
the range over which the volume level changes when you  
move the expression pedal.  
2 . Press PARAMETER [  
] [  
] to move the cursor,  
and turn the PATCH/VALUE dial to select the effect to  
be assigned to the pedal.  
1 . Press [PEDAL ASSIGN].  
The effects that can be assigned to each pedal are shown  
below.  
2 . Press PARAMETER [  
] [  
] to display the  
following screen.  
Number 1: COMP/ LIMITER or WAH  
Number 2: OD/ DIST or FX-1  
Number 3: CHORUS or FX-2  
(Setting the minimum value)  
fig.05-02  
Number 4: This pedal is a dedicated PEV/ DLY pedal.  
However, when selecting Sound On Sound  
with the REV/ DLY FX Select (p. 27), the  
Sound On Sound control function is  
fig.05-03  
automatically assigned to this pedal and the  
CTL pedal. Refer to p. 54 for more  
information when using this function.  
* The name and on/off status of the selected effect appear in the  
display in capitals when the effect is on, and in lowercase when  
the effect is off.  
3 . Rotate the PATCH/VALUE dial to set the value.  
Values: 0100  
* Each of the effect names indicated in the display are the actual  
effect names as selected with FX Select and other controls.  
4 . To save the settings, perform the Write procedure (p. 23).  
Press [EXIT] to return to the Play screen.  
3 . To save the settings, perform the Write procedure (p. 23).  
Press [EXIT] to return to the Play screen.  
When WAH(Pedal Wah: p. 20, 31) or FX-2 PB”  
automatically functions as a pedal wahor pedal  
bend.”  
* When these are off, the expression pedal automatically  
functions as a “volume pedal.”  
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Ch a p te r 5 Se ttin g th e Pe d a l Fu n ctio n s (Pe d a l Assig n )  
If Yo u Do n ’t W a n t to Use th e  
Ex p re ssio n Pe d a l a s a “ Vo lu m e Pe d a l”  
Se ttin g s fo r Usin g th e Ex p re ssio n  
Pe d a l Sw itch / CTL Pe d a l  
Use the procedure below to turn the expression pedal off.  
1 . Press [PEDAL ASSIGN].  
Ma k in g Se ttin g s In sta n tly  
(Q u ick Se ttin g s)  
2 . Press PARAMETER [  
] [  
] a number of times  
until you have one of the following screens displayed.  
fig.05-04  
Quick Settings is a function that lets you set the most  
appropriate values for related effect parameters instantly,  
just by selecting the preset pedal settings.This greatly  
reduces the hassle of selecting and setting parameters one by  
one.  
Pe d a l Se ttin g s fo r th e Ex p re ssio n Pe d a l Sw itch  
Select the parameter to be controlled when you press down  
on the toe of the expression pedal.  
3 . Press [PEDAL ASSIGN] once more, to set it to “Off.”  
WAH  
Effect On/ Off  
FX-2  
Effect On/ Off  
4 . To save the settings, perform the Write procedure (p.  
OD/DIST  
Effect On/ Off  
23).  
REV/DLY  
CHORUS  
PARAMETRIC EQ  
FX-1  
Effect On/ Off  
Press [EXIT] to return to the Play screen.  
Effect On/ Off  
Effect On/ Off  
Effect On/ Off  
LEVEL INC  
PATCH SELECT  
BYPASS  
Increase the volume level gradually  
Switch for Patch Select Mode (p. 60  
Bypass On/ Off  
)
Pe d a l Se ttin g s fo r th e CTL Pe d a l  
OD/DIST  
Effect On/ Off  
REV/DLY  
CHORUS  
PARAMETRIC EQ  
FX-1  
Effect On/ Off  
Effect On/ Off  
Effect On/ Off  
Effect On/ Off  
FX-2  
Effect On/ Off  
WAH  
Effect On/ Off  
PATCH SELECT  
BPM (TAP)  
BYPASS  
Switch for Patch Select Mode (p. 60  
Master BPM Tap Input  
Bypass On/ Off  
)
1 . Press [PEDAL ASSIGN].  
2 . Press PARAMETER [  
] [  
] to display the  
following screens.  
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Ch a p te r 5 Se ttin g th e Pe d a l Fu n ctio n s (Pe d a l Assig n )  
(Expression pedal switch)  
fig.05-05  
Ed itin g “ Q u ick Se ttin g s”  
Whenever necessary, you can edit parameter values set in the  
Quick Settings.  
1 . Press [PEDAL ASSIGN].  
(CTL pedal)  
2 . Press PARAMETER [  
] [  
] to display the  
fig.05-06  
following screen.  
fig.05-07  
Expression Pedal Switch  
Target  
Expression Pedal Switch  
Target value range: Min  
Holding down [  
] (or [  
]) and pressing [  
]
Expression Pedal Switch  
Target value range: Max  
(or [ ]) causes the GT-6B to jump to the main screen,  
allowing you to reduce the number of times you need to  
press the buttons.  
Expression Pedal Switch  
Source Mode  
3 . Rotate the PATCH/VALUE dial to select the pedal  
CTL Pedal  
Target  
setting.  
CTL Pedal  
Target value range: Min  
4 . Repeat steps 2–3 as necessary.  
5 . To save the settings, use the Write procedure (p. 23).  
Target value range: Max  
Press [EXIT] to return to the Play screen.  
CTL Pedal  
Source Mode  
If Yo u Do n ’t W a n t to Use th e  
Ex p re ssio n Pe d a l Sw itch o r CTL Pe d a l  
3 . Rotate the PATCH/VALUE dial to change the setting  
value.  
1 . Press [PEDAL ASSIGN].  
4 . Repeat steps 2–3 as necessary.  
2 . Press PARAMETER [  
] [  
] to display the  
following screens.  
5 . To save the settings, use the Write procedure (p. 23).  
(Expression pedal switch)  
fig.05-05  
Press [EXIT] to return to the Play screen.  
Ta rg e t  
Select the parameters to be controlled.  
Ta rg e t Va ria tio n Ra n g e  
(CTL pedal)  
fig.05-06  
This sets the range within which the parameter being  
controlled can be changed.  
The range between the minimum value (Min) and the  
maximum value (Max) is changed.  
So u rce Mo d e  
3 . Press [PEDAL ASSIGN] once more, to set it to “Off.”  
This selects the function of the foot switch (p. 50).  
4 . To save the settings, perform the Write procedure (p. 23).  
Press [EXIT] to return to the Play screen.  
4 7  
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Ch a p te r 5 Se ttin g th e Pe d a l Fu n ctio n s (Pe d a l Assig n )  
Ma k in g th e Assig n O n / O ff Se ttin g  
Co n tro llin g Effe cts w ith th e GT-6 B Pe d a ls,  
Ex te rn a l Pe d a ls, a n d Ex te rn a l MIDI De vice s  
fig.05-10  
Make these settings when controlling effects with the GT-  
6Bs expression pedal, expression pedal switch, or CTL  
pedal, or with external pedals or external MIDI devices  
connected to the GT-6B.  
This selects the eight Assign ON/ OFF settings (ASSIGN 18).  
Only set the assigns you will be using to On.”  
You can make up to eight separate settings per patch (using  
* Be sure to set any Assign settings not being used to “Off.”  
Assign numbers 18) determining what parameters are  
controlled by which controllers.  
fig.05-08  
1 . Press [PEDAL ASSIGN].  
2 . Press PARAMETER [  
] [  
] to select the Assign  
3
ON/OFF setting screen (ASSIGN 1–8).  
3 . Press [PEDAL ASSIGN] to set the function to ON or  
OFF.  
The setting is toggled between Onand Offeach time  
2
[PEDAL ASSIGN] is pressed.  
Ma k in g Se ttin g s In sta n tly  
(Q u ick Se ttin g s)  
1
Using Quick Settings lets you quickly finish making the  
settings to the parameters described below, without having  
to set them all individually.  
1 . Press [PEDAL ASSIGN].  
2 . Press PARAMETER [  
] [  
] to display the  
As you rotate the PATCH/ VALUE dial in the Quick Setting  
screen to select the prepared pedal settings, the most  
appropriate values for related parameters are selected  
instantly.  
following screen.  
fig.05-09  
Assign On/Off  
Quick Setting  
PATCH LEVEL  
PREAMP GAIN  
OD/DST DRIVE  
DELAY LEVEL  
CHORUS LEVEL  
REVERB LEVEL  
MASTER BPM  
Target  
Target value range: Min  
Target value range: Max  
Sourece  
SUB EXP FV  
Controlling Foot Volume with the External Expression  
Pedal  
Source Mode  
Active Range Low  
Active Range High  
SUB EXP PS  
Controlling Pitch Shifter with the External Expression  
Pedal  
3 . Rotate the VALUE dial to change the setting value.  
4 . Repeat Steps 2 and 3 as needed until the settings are  
completed.  
5 . To save the settings, use the Write procedure (p. 23).  
Press [EXIT] to return to the Play screen.  
4 8  
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Ch a p te r 5 Se ttin g th e Pe d a l Fu n ctio n s (Pe d a l Assig n )  
Ta rg e t Ra n g e (Min , Ma x )  
fig.05-12  
Ma k in g th e Pa ra m e te r Se ttin g s  
This sets the parameters to be controlled with Assign.  
Ta rg e t  
fig.05-11  
The parameter value selected as the target changes within the  
This sets the parameter to be affected.  
range defined by the Minand Max,set this parameter.  
You can make adjustments to more parameters than those  
available in the Quick Settings.  
When using the CTL pedal, foot switch, or other controller  
that acts as an on/ off switch, the minimum value(Min) is  
produced when you release your foot from the pedal, while  
depressing the pedal produces the maximum value(Max).  
The parameters that you can select as the target are shown  
below.  
Effect On/ Off for each effect  
Effect parameters  
Patch Level  
W h e n u sin g th e fo o t sw itch  
fig.05-13  
Amount of Change  
in parameter Value  
Master BPM  
Foot Volume  
maximum value  
Target Max  
Bypass On/ Off  
Switch for Patch Select Mode (p. 60)  
Master BPM  
MIDI Start/ Stop  
MIDI Start and Stop messages are output from the MIDI OUT  
connector, and these control the performance of the sequencer  
or other external MIDI device.  
minimum value  
Target Min  
Off  
On  
MMC Start/ Stop  
Release  
Depress  
Foot Switch  
MMC Start and Stop messages are output from the MIDI OUT  
connector, and these control the performance of the recorder or  
other external MIDI device.  
When using an expression pedal or other controller that  
changes values over a continuous range, the value of the  
setting changes accordingly within the range set by the  
minimum (MIN) and maximum (MAX) values.  
Patch Level INC/ DEC (increase/ decrease)  
* Although you can set this so that the same target is controlled  
by more than one controller, in such cases make sure not to  
have different sources changing the parameter at the same  
time. Changing the parameter simultaneously while using  
different sources may result in noise being generated.  
W h e n u sin g th e e x p re ssio n p e d a l  
fig.05-14  
maximum value  
Target Max  
* The GT-6B does not transmit MIDI clock. Therefore, when  
MIDI Start/Stop is selected as the target, set the receiving  
device so its own clock is used for the performance.  
minimum value  
Target Min  
When the pedal  
is fully raised  
When the pedal  
is fully advanced  
Expression Pedal  
Additionally, when the target is of an on/ off type, the  
median value of the received data is used as the dividing line  
in determining whether to switch it on or off.  
4 9  
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Ch a p te r 5 Se ttin g th e Pe d a l Fu n ctio n s (Pe d a l Assig n )  
* The CTL pedal indicator lights according to the settings made  
W h e n co n tro llin g a n O n / O ff ta rg e t w ith th e  
e x p re ssio n p e d a l  
with the CTL pedal.  
fig.05-15  
So u rce Mo d e  
fig.05-17  
On  
Target Max  
ON  
This determines the manner in which the setting is to be  
changed when a momentary-type foot switch (such as the  
optional FS-5U) is used.  
Off  
Target Min  
OFF  
When the pedal  
When the pedal  
is fully raised  
When the pedal  
is fully advanced  
is advanced halfway  
* The GT-6B’s control pedal is a momentary-type pedal. Switch  
the settings as needed to accommodate your setup.  
Expression Pedal  
* The range that can be selected changes according to the target  
setting.  
N o rm a l  
The normal state is Off (minimum value), with the switch On  
(maximum value) only while the foot switch is depressed.  
* When the “minimum” is set to a higher value than the  
“maximum,” the change in the parameter is reversed.  
To g g le  
* The values of settings may change if the target is altered after  
the “minimum value” and “maximum value” are set. Be sure  
to check the “minimum value” and “maximum value” settings  
after changing the target.  
The setting alternately switches between On (maximum  
value) and Off (minimum value) with each press of the foot  
switch.  
Ex a m p le (1 )  
So u rce  
fig.05-16  
When switching effects on and off with a foot switch  
Source  
Source Mode  
Momentary-Type Toggle  
CTL pedal  
FS-5U (external)  
This sets the controller (source) that affects the target  
parameter. Controllers that can be selected as the source are  
shown below.  
Latch Type  
FS-5L (external)  
Normal  
Normal  
Expression pedal  
EV-5 (external)  
EXP PEDAL  
EXP SW  
Expression pedal  
Expression pedal switch  
CTL pedal  
CTL PEDAL  
Ex a m p le (2 )  
* The CTL pedal indicator is not lit. The indicator lights up  
according to the CTL pedal setting (p. 46).  
When the effect is applied more, or is on only while the  
SUB EXP PEDAL  
Source  
Source Mode  
External expression pedal connected to the SUB EXP  
PEDAL/ SUB CTL 1, 2 jack.  
Momentary-Type Normal  
CTL pedal  
FS-5U (external)  
* Set SYS: Sub CTL 1 Func (p. 63) to “Assignable.”  
SUB CTL 1, 2  
Latch Type  
FS-5L (external)  
cannot function  
Normal  
Foot switch connected to the SUB EXP PEDAL/ SUB CTL  
1, 2 jack.  
Expression pedal  
EV-5 (external)  
* Set SYS: Sub CTL 1, 2 Func (p. 63) to “Assignable.”  
MIDI CC# 131, 6495  
Control Change messages from an external MIDI device  
(131, 6495).  
5 0  
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Ch a p te r 5 Se ttin g th e Pe d a l Fu n ctio n s (Pe d a l Assig n )  
Active Ra n g e  
fig.05-18  
Co n tro llin g Fo o t Vo lu m e a n d Pitch Sh ifte r  
w ith a n Ex te rn a l Ex p re ssio n Pe d a l  
Make the following settings to use an expression pedal  
connected to the SUB EXP PEDAL/ SUB CTL 1,2 jack to  
control foot volume and pitch shifter.  
* Set SYS: Sub CTL1 Func (p. 63) to “Assignable.”  
1 . Press [PEDAL ASSIGN].  
When an expression pedal or other controller that changes  
the value consecutively is used as the source, this sets the  
operational range within which the value of the setting  
changes. If the controller is moved outside the operational  
range, the value does not change, but instead stops at  
minimumor maximum.”  
2 . Press PARAMETER [  
] [  
], to display one of the  
Assign On/Off screens for ASSIGN 1–8.  
fig.05-10  
(Ex a m p le ) Act. Ra n g e Lo : 4 0 , Act. Ra n g e Hi: 8 0  
fig.05-19a  
* When the upper row of the screen indicates “OFF” (flashing),  
press [PEDAL ASSIGN] to set it to “ON” (lit).  
maximum value  
Target Max  
3 . Rotate the PATCH/VALUE dial to select the following  
settings:  
For Foot Volume:  
SUB EXP FV  
For Pitch Shifter:  
minimum value  
Target Min  
SUB EXP PS  
fig.05-20  
0
40  
80  
127  
Act. Range Act. Range  
Lo  
Hi  
fig.05-19b  
On  
Off  
ON  
4 . If Pitch Bend has been selected in Step 3, carry out the  
following.  
OFF  
Press [FX-2] so that Onappears in the display.  
0
40 60 80  
Act. Range Center Act. Range  
Lo value Max  
127  
Next, press PARAMETER [  
] [  
] to display FX  
Select,then select P.Swith the PATCH/ VALUE dial.  
* When using a foot switch or other on/off switching controller  
as the source, leave these at “Lo: 0” and “Hi: 127.” With  
certain settings, the value may not change.  
5 1  
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Ch a p te r 6 Usin g th e Cu sto m ize Fu n ctio n  
With the GT-6s Customize function, you can rely on your  
own sensibilities and create a totally new effect by tweaking  
the settings for the Preamp/ Speaker Simulator,”  
3 . Press PARAMETER [  
] [  
] to show the special  
Custom parameters.  
fig.06-02  
Custom  
Type  
Overdrive/ Distortion,and Pedal Wah.The result can  
then be saved on the GT-6 as Customsettings.  
Custom  
Bottom  
You can also use these custom settings in other patches.  
Custom  
Top  
Customsettings are automatically updated (saved),  
even if you don't carry out the Write procedure. For this  
reason, you need to keep in mind that once you change  
the settings, the previous settings can no longer be  
restored.  
Custom  
Low  
Custom  
High  
* You can restore “custom” settings to their original factory-set  
values by carrying out Factory Reset for the system (p. 73).  
4 . Rotate the PATCH/VALUE dial to change the setting  
value.  
5 . Repeat Steps 3 and 4 as needed.  
All product names mentioned in this document are  
trademarks or registered trademarks of their respective  
owners.  
6 . Press [EXIT] to return to the Play screen.  
The names used for the sounds mentioned in this  
document are intended to be descriptive in nature, used  
solely to identify the equipment whose sound is  
simulated using COSM technology.  
Ty p e  
Selects the basic type of preamp.  
OD-2:  
This is the sound of the BOSS OD-2.  
BD-2:  
This is a crunch sound produced with the BOSS BD-2.  
ODB-3:  
Ma k in g “ Cu sto m ”  
This is the sound of the BOSS ODB-3.  
O ve rd rive / Disto rtio n Se ttin g s  
DS-1:  
This gives a basic, traditional distortion sound.  
You can prepare two different sets of settings in the GT-6B,  
Custom 1 and Custom 2.  
MT-2:  
This is the sound of the BOSS MT-2.  
* Editing the Custom 1 or Custom 2 settings alters all tones in  
patches that use these custom settings.  
FUZZ:  
This models the sound of the FUZZ.  
1 . Press the OD/DS ON/OFF switch.  
Bo tto m -5 0 –+5 0  
The OD/ DS Edit screen appears.  
Adjusts the amount of distortion in the lower range.  
2 . Press OVERDRIVE/DISTORTION [TYPE  
VARIATION] to display “Custom 1” or “Custom 2.”  
fig.06-01  
To p -5 0 –+5 0  
Adjusts the amount of distortion in the upper range.  
Lo w -5 0 –+5 0  
Adjusts the tone of the lower range.  
Hig h -5 0 –+5 0  
Adjusts the tone of the upper range.  
5 2  
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Ch a p te r 6 Usin g th e Cu sto m ize Fu n ctio n  
Ty p e  
Ma k in g “ Cu sto m ” Pe d a l  
W a h Se ttin g s  
Selects the basic type of wah.  
CRY WAH:  
This models the 70s-type sound of the CRY BABY wah  
Here, you can make three different sets of settings, Custom 1,  
Custom 2, and Custom 3.  
pedal.  
VO WAH:  
* Editing the Custom 1, 2, or 3 settings alters all tones in  
patches that use these custom settings.  
This models the sound of the VOX V846.  
Bass WAH:  
1 . Press [WAH].  
Wah featuring a broader range of variations for the bass  
range.  
The WAH edit screen appears.  
2 . Press PARAMETER [  
] [  
] so that “FX Select” is  
Q -5 0 –+5 0  
displayed, then rotate the PATCH/VALUE dial to select  
“WH.”  
Adjusts the amount of characteristic effect applied to the wah  
tone.  
3 . Press PARAMETER [  
] [  
] until “Type”  
Ra n g e Lo w -5 0 –+5 0  
appears in the display.  
Selects the tone produced when the pedal is rocked back.  
4 . Rotate the PATCH/VALUE dial to select from “Custom  
1–3.”  
fig.06-03  
Ra n g e Hig h -5 0 –+5 0  
Selects the tone produced when the pedal is pressed fully  
forward.  
Pre se n ce -5 0 –+5 0  
Adjusts the tonal quality of the wah effect.  
5 . Press PARAMETER [  
] [  
] to show the custom  
parameters.  
fig.06-04  
Custom  
Type  
Custom  
Q
Custom  
Range Low  
Custom  
Range High  
Custom  
Presence  
6 . Rotate the PATCH/VALUE dial to change the setting  
value.  
7 . Repeat Steps 4 through 6 as needed.  
8 . Press [EXIT] to return to the Play screen.  
5 3  
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Ch a p te r 7 Usin g So u n d O n So u n d  
You can use the Sound On Sound functionby selecting  
SOSwith the REV/ DLY Fx Select (p. 27).  
3 . Press the CTL pedal to end the recording.  
When you stop recording, the recorded phrases  
simultaneously starts playing back. The CTL pedals red  
indicator light goes out, and the green indicator flashes,  
indicating that playback is in progress.  
Here, the Number 4 pedal and the BYPASS/ CTL pedal  
automatically function as Sound On Sound controls.  
fig.07-01  
In addition, the Number 4 pedals indicator lights up,  
indicating that the memory contains recorded data.  
fig.07-04  
Lit  
Dark Blink  
Number 4 pedal:  
CTL pedal:  
Stop, Erase  
fig.07-05  
Lit Blink  
4 . Press the CTL pedal once again to  
Record, Play, Overdub  
begin overdubbing.  
* The Number 4 pedal won’t function as the Sound On Sound  
control pedal if the Patch Select mode (p. 60) has been set to  
the Bank/Number method of selection.  
Synchronize the overdub to the  
recorded phrase.  
The CTL pedals green indicator  
flashes and the red indicator light  
goes on, indicating that playback  
The available recording time in HiQltymode (in  
which priority is placed on sound quality) is  
approximately 3 seconds, and approximately 6 seconds  
in LongTimemode (in which priority is placed on  
longer recording time).  
and recording are being carried out simultaneously.  
Each time the CTL pedal is pressed, playback and  
overdubbing repeat.  
5 . When you have finished playback and overdubbing,  
press the Number 4 pedal.  
fig.07-06  
Pro ce d u re  
Dark  
6 . If you want to erase the results of  
your recording, press and hold  
down the Number 4 pedal for at  
least two seconds.  
fig.07-02  
Blink  
1 . Confirm that the CTL pedals red  
indicator is flashing.  
This means that the GT-6B is in  
recording standby mode and that  
there is nothing in the memory.  
Additionally, the rate at which the  
indicator flashes indicates the  
* The recorded content is temporary. Note that carrying out the  
following procedures erases the recording.  
tempo, allowing you to use this as a quick tempo check  
during recording.  
Turning off the power to the GT-6B.  
Switching to another patch  
* Depress the Number 4 pedal at least twice while “Tempo” (p.  
you' ’ve used while depressing the pedal (tap input).  
Setting the REV/ DLY Fx Select to anything other than  
SOS.”  
fig.07-03  
Switch for SOSMode  
Lit  
2 . Press the CTL pedal to begin  
recording.  
* For more information about each of the “SOS” parameters,  
refer to p. 29.  
The CTL pedals red indicator stops  
flashing and stays lit, indicating that  
the GT-6B is recording.  
* Recording stops automatically as soon  
as the amount that' s been recorded  
exceeds the available recording time.  
5 4  
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Ch a p te r 8 Co n ve n ie n t Fe a tu re s o f th e GT-6 B  
Sw itch in g By p a ss O n a n d O ff  
O u tp u ttin g So u n d s W ith o u t  
Effe cts Ap p lie d (By p a ss)  
Usin g th e Pe d a l  
The GT-6B features bypass circuitry. By using the bypass, the  
signal path, from input to output, consists entirely of analog  
circuitry. To switch to bypass, carry out the following  
procedure.  
When the BYPASS/ CTL pedal or the expression pedal  
switch function is set to Bypass,these pedals then toggle  
between bypassor effect oneach time they are pressed.  
The green BYPASS/ CTL pedal is lit while the unit is in  
bypass mode (refer to Settings for Using the Expression  
Pedal Switch/ CTL Pedal: p. 46).  
Usin g th e Ex p re ssio n Pe d a l Eve n  
W h e n By p a ss Is in Effe ct  
Usin g th e Bu tto n s  
You can use Bypass EXP Mode to set the routing of the  
signals when bypass is in effect; these settings can be made  
separately for each individual patch.  
Each time the panel button [TUNER/ BYPASS] is pressed, the  
unit switches between Tuner mode (p. 56),” “Bypass mode”  
and Play mode.”  
1 . Press [NAME/NS/MASTER] until “Bypass EXP Mode”  
appears in the display.  
Co n n e ctin g Dire ctly to a Re co rd in g Mix e r  
o r PA Mix e r (XLR Ba la n ce d O u tp u t)  
* Each time [NAME/NS/MASTER] is pressed, the item that  
can be set is changed, following this order:  
Name Noise Suppressor Master Bypass EXP Mode  
The GT-6B features balanced outputs that utilize XLR  
connectors. Although direct boxes are generally used to  
connect bass (effects processor) outputs to mixers in concert  
halls and recording studios, you can connect the GT-6B  
directly to the mixer, which lets you avoid degradations in  
the sound quality, as well as any additional problems that  
Foot Volume Effect Chain.  
fig.08-50  
2 . Rotate the PATCH/VALUE dial to select “On” or “Off.”  
might occur as the result of connecting multiple devices.  
fig.08-02  
Off:  
You cannot use the expression pedal while bypass is in  
effect. The bypass sound does not pass through the AD/  
DA converter, and analog bypass sound is output. The  
analog bypass sound is also output for the direct sound  
when only CHORUS or REV/ DLY is used. (However,  
the expression pedal affects only the effect sound.)  
On:  
You can use the expression pedal while bypass is in  
effect. The bypass sound is output after passing through  
the AD/ DA converter. Also, the direct sound is output  
after passing through the AD/ DA converter even when  
CHORUS or REV/ DLY is used, so you can use the  
expression pedal to control the volume level for sounds  
including the direct sound.  
Sw itch in g th e XLR O u tp u t  
Co n n e cto r Sig n a ls  
You can select the signals to be output from the XLR  
connectors with the OUTPUT SELECT switch on the rear  
panel.  
3 . To save the settings, perform the Write procedure (p. 23).  
R-O UTPUT-L: Ste re o O u tp u t  
Press [EXIT] to return to the Play screen.  
The GT-6Bs stereo output is output as is, without change. Set  
the switch to this position when recording in stereo or  
sending stereo signals to a PA.  
5 5  
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Ch a p te r 8 Co n ve n ie n t Fe a tu re s o f th e GT-6 B  
DIRECT/ MO N O : Dire ct/ Mo n o O u tp u t  
Tu n in g th e Ba ss  
Output from one of the connectors is the GT-6Bs stereo  
output mixed to mono; the direct bass direct sound (the  
analog bypass sound from the input jack) is output from the  
other connector.  
The GT-6B is equipped with an Internal automatic chromatic  
tuner. Turning on the tuner mutes the output and activates  
the tuner.  
This switch setting determines whether the signals output  
from the XLR output jacks are output in stereo (L/ R) or as  
direct mono output. Set the switch to this position when  
using only one mixer channel, for example during concerts.  
Additionally, for recording, you can record the direct bass  
sound on a separate channel, then later on you can remix the  
direct sound with the effect sound during mixdown.  
Tu rn in g th e Tu n e r Fu n ctio n O n  
Use the following procedure to switch to Tuner mode.  
fig.08-04  
Q u ick Pa tch Vo lu m e Ad ju stm e n t  
(EFFECT LEVEL Kn o b )  
For quick and easy adjustment of the current patchs volume,  
use the EFFECT LEVEL knob.  
You can control the patch level of the currently selected  
Usin g th e Pe d a l  
patch directly by turning the EFFECT LEVEL knob.  
fig.08-03  
To switch to Tuner mode, simultaneously press the PATCH  
and PATCH  
pedals.  
Press either the PATCH  
to the original mode.  
or PATCH  
pedals to return  
Usin g th e Bu tto n s  
Each time the panel button [TUNER/ BYPASS] is pressed, the  
unit switches between Tuner mode,” “Bypass mode (p. 55)”  
and Play mode.”  
Ab o u t th e Disp la y Du rin g Tu n in g  
* When the Bypass EXP Mode (p. 55) and Noise Suppressor (p.  
the direct sound is output as analog output.In this case,  
EFFECT LEVEL does not change the volume of the direct  
sound.  
With the GT-6Bs internal tuner, the note name is indicated in  
the upper row of the display and the Tuning Guide is shown  
in the lower row, indicating the difference between the input  
sound and the sound in the display.  
Furthermore, the tuning status is also indicated by the  
pedals' indicators.  
fig.08-05  
* The patch level as adjusted with the PATCH LEVEL knob is  
saved when the Write procedure (p. 23) is carried out.  
Note Name  
Tuning Guide  
When the difference from the correct pitch falls within 50  
cents, the Tuning Guide then indicates the size of that  
difference. As you watch the Tuning Guide, tune the bass so  
that the appears in the center.  
5 6  
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Ch a p te r 8 Co n ve n ie n t Fe a tu re s o f th e GT-6 B  
When the sound is higher than the indicated note name  
At this time, the indicators of the PATCH  
and  
PATCH pedals light, indicating that the instrument is  
appears to the right of center in the Tuning Guide.  
fig.08-52  
precisely in tune.  
fig.08-06  
too high  
tuned  
The pedals' indicators flash from left to right.  
4 . Repeat Steps 1–3 until all of the strings are tuned.  
too low  
Ch a n g in g th e Tu n e r Se ttin g s  
Ho w to Tu n e  
You can change the following tuner-related settings.  
1 . Play a single open note on the string being tuned.  
Sta n d a rd Pitch (4 3 5 –4 4 5 Hz)  
fig.08-07  
The name of the note closest to the pitch of the string that  
was played appears in the display.  
* Only play a single note on the one string being tuned.  
2 . Tune the string until the string name appears in the  
display.  
The frequency of A4 (the middle A on a piano keyboard)  
played by an instrument (such as a piano) that provides the  
pitch to which the other instruments refer in tuning before a  
performance begins is called the standard pitch. You can set  
the standard pitch on the GT-6B to frequencies from 435 to  
445 Hz.  
General Four-String Bass  
4th 3rd 2nd 1st  
Regular  
E
D#  
D
A
G#  
G
D
C#  
C
G
F#  
F
1/ 2 Step Down  
1 Step Down  
* This is set to 440 Hz when shipped from the factory.  
General Five-String Bass  
1 . Turn the Tuner function on.  
5th  
4th 3rd 2nd 1st  
Regular  
B
E
G#  
G
A
C#  
C
D
F#  
F
2 . Press PARAMETER [  
] until “TUNER Pitch” is  
1/ 2 Step Down  
1 Step Down  
A#  
A
D#  
D
displayed.  
3 . Rotate the VALUE dial to change the settings.  
General Six-String Bass  
4 . Press [TUNER/BYPASS] or [EXIT] to return to the Play  
6th  
5th  
B
4th 3rd 2nd 1st  
screen, or press PARAMETER [  
Tuner screen.  
] to return to the  
Regular  
E
G#  
G
A
C#  
C
D
F#  
F
G
B
1/ 2 Step Down  
1 Step Down  
A#  
A
D#  
D
A#  
3 . As you watch the Tuning Guide, adjust the basss  
tuning until “” appears in the center.  
When the sound is lower than the indicated note name  
appears to the left of center in the Tuning Guide.  
fig.08-51  
The pedals' indicators flash from right to left.  
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Ch a p te r 8 Co n ve n ie n t Fe a tu re s o f th e GT-6 B  
Ad ju stin g th e O ve ra ll So u n d to Ma tch  
th e Usa g e En viro n m e n t (Glo b a l)  
Usin g th e Dig ita l O u t  
Digital signals are output from the DIGITAL OUT connector  
on the rear panel. You can connect this directly to the digital  
in connector of a digital recorder or other device and record  
The GT-6B includes a feature that allows you to change all of  
the patch settings temporarily. This is called the Global  
function.”  
with no degradation in sound quality.  
fig.08-10  
With the Global function, you can temporarily change your  
settings to match those of your equipment and the operating  
environment, while leaving the settings in the patches  
untouched.  
1 . Press [UTILITY], then press PARAMETER [  
]
DIGITAL IN  
[
] to display the following screen.  
fig.08-53  
Global: Noise Suppressor Threshold  
Global: Reverb Level  
Ad ju stin g th e O u tp u t Le ve l  
fro m DIGITAL O UT  
With the GT-6B, you can adjust the output level of DIGITAL  
OUT independently of the analog output level.  
2 . Rotate the PATCH/VALUE dial to change the settings  
value.  
1 . Press [UTILITY], then press PARAMETER [  
]
[
] so that “Digital Out” is displayed.  
3 . Repeat Steps 1 and 2 as needed.  
fig.09-52  
4 . Press [EXIT] to return to the Play screen.  
N S Th rsh o ld (N o ise Su p p re sso r Th re sh o ld )  
-2 0 d B–+2 0 d B  
Adjusts the noise suppressor threshold level settings for each  
patch in a range from -20 dB to +20 dB.  
2 . Rotate the PATCH/VALUE dial to set the digital output  
level.  
This adjustment is an effective way to get equivalent output  
with each of your basses when you are connecting more than  
one bass.  
Valid settings: 0200  
* Raising the level too high may cause clipping of the signal  
within the unit. Check the meter (p. 59) or otherwise monitor  
the signal while setting this to an appropriate level.  
* Set to “0 dB” when using this in individual patch settings.  
* This has no effect on patches in which the noise suppressor is  
turned off.  
3 . Press [EXIT] to return to the Play screen.  
Re vrb Le ve l (Re ve rb Le ve l) 0 %2 0 0 %  
Adjusts the reverb level settings for each patch in a range  
from 0% to 200%.  
Adjusting the reverb level is an effective way to match the  
reverberation of the performance venue.  
* Set to “100%” when using this in individual patch settings.  
* This has no effect on patches in which reverb is turned off.  
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Ch a p te r 8 Co n ve n ie n t Fe a tu re s o f th e GT-6 B  
Ch e ck in g th e Effe ct O u tp u t  
Le ve l w ith th e Le ve l Me te r  
You can meter the output level of each effect. This is handy  
for checking the effectsoutput levels.  
1 . Press [UTILITY] a number of times until “METER” is  
displayed.  
* You can also select this by pressing [UTILITY], and then  
pressing PARAMETER [  
] [  
].  
fig.08-11  
2 . Rotate the PATCH/VALUE dial to select the effect  
whose level you want to check.  
* Only effects that are turned on can be selected.  
* You can check the level of signals being input to the INPUT  
jack by selecting “Input.” Selecting “Output” allows you to  
check the level of signals output from the GT-6B.  
* You may not be able to achieve the effects adequately if your  
output levels are set too high. While checking the meter and  
making sure the needle doesn’t fluctuate, adjust the output  
level of each of your effects to the optimum value.  
3 . Press [EXIT] to return to the Play screen.  
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Ch a p te r 9 O th e r Fu n ctio n s  
Ad ju stin g th e Disp la y Co n tra st  
(LCD Co n tra st)  
Se ttin g th e Tim in g Use d fo r Sw itch in g  
Pa tch e s (Pa tch Se le ct Mo d e )  
Depending on where the GT-6B is placed the display may  
become hard to read. If this occurs, adjust the display  
contrast.  
This setting determines how patches are switched with the  
pedals.  
1 . Press [UTILITY], then press PARAMETER [  
]
1 . Press [UTILITY] a number of times until “LCD  
[
] so that “Patch Select” is displayed.  
fig.09-03  
Contrast” is displayed.  
* You can also select this by pressing [UTILITY], and then  
pressing PARAMETER [  
] [  
].  
* Turning on the power while holding down [UTILITY] enables  
you to display this screen directly.  
2 . Rotate the PATCH/VALUE dial to set the method to be  
fig.09-01  
used for switching patches.  
UP/DOWN:  
Patches are switched only with the PATCH  
PATCH pedals.  
* This is the setting made at the factory.  
and  
2 . Rotate the PATCH/VALUE dial to adjust the contrast.  
Values: 116  
*
For more on how the unit operates while switching patches  
when set to “UP/DOWN,” refer to “Selecting Patches” (p. 14).  
3 . Press [EXIT] to return to the Play screen.  
BANK/NUMBER:  
Patches are switched by directly specifying the bank and  
number.  
Lim itin g th e Ba n k s Th a t Ca n  
Be Sw itch e d (Ba n k Ex te n t)  
3 . Press [EXIT] to return to the Play screen.  
By setting an upper limit to the banks, thus limiting the range  
of banks that can be switched, you can set the GT-6 so that  
only the patches you need can be selected.  
Se le ctin g Pa tch e s b y Dire ctly  
Sp e cify in g th e Ba n k a n d N u m b e r  
This is good way to change tones by switching patches one  
after another.  
1 . Press [UTILITY], then press PARAMETER [  
]
[
] so that “Bank Extent” is displayed.  
fig.09-50  
Sw itch in g O n ly th e N u m b e r  
fig.09-04  
2 . Rotate the PATCH/VALUE dial to set the upper limit  
for the banks.  
Valid Settings: U1P0  
3 . Press [EXIT] to return to the Play screen.  
1
1 . Press the number pedal matching the number of the  
patch you want to use.  
That pedals indicator lights up, and the GT-6B switches  
to that patch.  
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Ch a p te r 9 O th e r Fu n ctio n s  
Sw itch in g th e Ba n k a n d N u m b e r  
fig.09-05  
Se ttin g th e Tim in g Use d fo r Sw itch in g  
Pa tch e s (Pa tch Ch a n g e Mo d e )  
1
This sets the timing with which the GT-6B switches to the  
next patch when switching patches with the pedals.  
The Patch Change mode appears only when BANK/  
NUMBERhas been chosen as the Patch Select mode.  
1 . Press [UTILITY], then press PARAMETER [  
]
[
] so that “Patch Change” is displayed.  
fig.09-51  
2
1 . Press the BANK  
or BANK  
pedal to select the  
desired bank.  
2 . Rotate the PATCH/VALUE dial to set the timing for  
When you switch banks, the indicator for number pedal  
last pressed before pressing the BANK pedal flashes, and  
the GT-6B is ready for the patch number to be specified  
(the patch cannot yet be switched in this condition).  
switching patches.  
Immediate:  
The patch switches the instant a BANK pedal or any of  
the number pedals is pressed.  
2 . Press a number pedal to select the patch you want to  
Wait for a NUM.:  
use.  
Although the indication in the display is updated to  
reflect the change in the bank when a BANK pedal is  
pressed, the patch doesnt get changed at that point. The  
actual change to the newly selected patch takes place  
only after a number pedal has been pressed, and a  
complete bank and number combination has thus been  
entered.  
The indicator for the selected number pedal lights up,  
and the GT-6B switches to that patch.  
* The delay and reverb sounds are suspended while patches are  
switched.  
3 . Press [EXIT] to return to the Play screen.  
6 1  
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Ch a p te r 9 O th e r Fu n ctio n s  
Se ttin g Ex p re ssio n Pe d a l Ho ld ”  
Se le ctin g th e PATCH/ VALUE  
Dia l Fu n ctio n (Dia l Fu n ctio n )  
This setting determines whether or not the Pedal Assigns (p.  
patches are switched.  
This setting determines whether or not patches are switched  
by rotating the PATCH/ VALUE dial.  
* Expression Pedal Hold does not function if the Assign Source  
mode is set to Toggle (whereby the value is toggled between  
Min and Max each time the pedal is pressed).  
1 . Press [UTILITY], then press PARAMETER [  
]
[
] so that “Dial Func” is displayed.  
fig.09-02  
1 . Press [UTILITY], then press PARAMETER [  
]
[
] so that “EXP Pdl Hold” is displayed.  
fig.09-06  
2 . Rotate the PATCH/VALUE dial to select the PATCH/  
VALUE dial function.  
PATCH No.& VALUE:  
2 . Rotate the PATCH/VALUE dial to set Expression Pedal  
The dial is used both for switching patches and changing  
the value of settings. In addition to switching patches  
with the pedals, you can also switch them by rotating the  
PATCH/ VALUE dial.When shipped from the factory,  
you can use this setting.  
Hold.  
On: The Pedal Assign status is carried over.  
(Example)  
If a patch is switched while the volume is being  
controlled with the expression pedal, the volume of the  
subsequent patch will take on the value determined by  
the current pedal position (angle).  
VALUE Only:  
In this setting, the PATCH VALUE Dial is used only for  
changing the value of parameter settings, not patches.  
If the expression pedal is controlling the wah effect in the  
patch being switched to, then the volume assumes the  
value set in the patch, and the patchs wah effect is given  
the value corresponding to the current pedal position  
(angle).  
3 . Press [EXIT] to return to the Play screen.  
Off: The Pedal Assign status is not carried over.  
(Example)  
If a patch is switched while the volume is being  
controlled with an expression pedal, the volume of the  
subsequent patch is set to the value set in that patch.  
If the expression pedal is operated, and that information  
is transmitted to the GT-6B, the volume changes in  
accordance with the movement of the pedal.  
3 . Press [EXIT] to return to the Play screen.  
6 2  
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Ch a p te r 9 O th e r Fu n ctio n s  
Se ttin g th e Kn o b Fu n ctio n s  
(Kn o b Mo d e )  
Se ttin g th e Ex te rn a l Fo o t Sw itch  
Fu n ctio n s (SUB CTL 1 , 2 Fu n ctio n )  
This sets the way the values of settings are changed when the  
control knobs are turned.  
This sets the foot switch functions for Sub Control 1and  
Sub Control 2when you have an external foot switch  
connected to the rear panels SUB EXP PEDAL/ SUB CTL1,2  
jack.  
1 . Press [UTILITY], then press PARAMETER [  
]
[
] so that “Knob Mode” is displayed.  
* When connecting two foot switches using the special optional  
Roland PCS-31 connector cord, the foot switch connected  
using the plug with the white stripe functions according to the  
Sub Control 1 settings, and the foot switch connected using  
the plug with the red stripe functions according to the Sub  
Control 2 settings.  
fig.09-07  
2 . Rotate the PATCH/VALUE dial to set the Knob mode.  
Immediate:  
* When you have only one foot switch connected, the Sub  
Control 1 settings are used.  
Turning the knobs immediately changes the values.  
Current Setting:  
1 . Press [UTILITY], then press PARAMETER [  
] so that “SubCTL 1 Func” or “SubCTL 2 Func” is  
displayed.  
]
Values begin to change only once the knob position  
reaches the values set in the patch.  
[
fig.09-08  
3 . Press [EXIT] to return to the Play screen.  
2 . Rotate the PATCH/VALUE dial to set the function for  
the foot switch.  
Assignable:  
The controller set in each patchs Pedal Assign (p. 46) is  
used.  
Bypass On/Off:  
The foot switch is used as a bypass On/ Off switch.  
Patch Select:  
The foot switch is used for switching Patch Select mode  
(p. 60).  
MIDI Start/Stop:  
The foot switch is used for starting and stopping an  
external MIDI device (such as a sequencer).  
MMC Play/Stop:  
The foot switch is used for controlling Play and Stop for  
the external MIDI device (such as a hard disk recorder).  
3 . Press [EXIT] to return to the Play screen.  
6 3  
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Ch a p te r 1 0 Usin g MIDI  
Co n tro llin g th e GT-6 B Re m o te ly Fro m  
a n Ex te rn a l MIDI De vice  
W h a t Ca n Yo u Do w ith MIDI?  
You can perform the following operations using MIDI with  
the GT-6B.  
Sw itch in g Pa tch N u m b e rs  
When the GT-6B receives Program Change messages from  
the external MIDI device, the corresponding patches are  
switched simultaneously.  
* The use of MIDI requires that the MIDI channels of the  
connected devices match. If the MIDI channel settings are not  
correct, the GT-6B will be unable to exchange data with other  
MIDI devices.  
You can set the correspondence between MIDI Program  
Change messages and the GT-6Bs patches using the  
Program Change Map (p. 69). Make these settings when  
you create correspondences for effect sounds with other  
MIDI devices.  
O p e ra tin g Fro m th e GT-6 B  
O u tp u ttin g Pro g ra m Ch a n g e Me ssa g e s  
When a patch is selected on the GT-6B, a Program Change  
message corresponding to the patch number is transmitted  
simultaneously. The external MIDI device then switches its  
The connections shown in the figure below are for a  
settings according to the Program Change message it receives.  
fig.10-01  
sequencer automatically performing the backing as a bass is  
being played. The patches are switched automatically when  
the program numbers corresponding to the patches are input  
along with the performance data at the points where you  
have determined the GT-6B patches are to be switched.  
fig.10-02  
MIDI OUT  
MIDI IN  
MIDI OUT  
MIDI IN  
O u tp u ttin g Co n tro l Ch a n g e Me ssa g e s  
Data describing the actions of the CTL pedal, expression  
pedal, expression pedal switch, and external devices  
connected to the SUB EXP PEDAL/ SUB CTL 1,2 jack are  
output as Control Change messages. Such messages can be  
used to (among other things) manipulate the parameters of  
an external MIDI device.  
MIDI Sta rt/ Sto p , MMC Pla y / Sto p  
MIDI Start/ Stop or MMC Start/ Stop messages are output  
when the CTL pedal, the expression pedal, the expression  
pedal switch, or the external device connected to the SUB  
EXP PEDAL/ SUB CTL 1,2 jack is operated, allowing you to  
control the performance of the external MIDI device.  
Re ce ivin g Co n tro l Ch a n g e Me ssa g e s  
You can control specified parameters during a  
performance through Control Change messages received  
by the GT-6B. Parameters to be controlled are set with  
Pedal Assign (p. 46).  
* For more on how to make the settings, refer to p. 48 and 63.  
Tra n sm ittin g Da ta  
Re ce ivin g Da ta  
You can use Exclusive messages to transmit the settings for  
effect sounds and other content stored in the GT-6B to other  
MIDI devices. For example, you can provide another GT-6B  
with the same settings, and save effect sound settings to a  
sequencer or other device.  
The GT-6B can receive data transmitted from another GT-6B,  
as well as data thats been stored on a sequencer.  
6 4  
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Ch a p te r 1 0 Usin g MIDI  
MIDI TX Ch a n n e l (MIDI Tra n sm it Ch a n n e l)  
1 –1 6 , Rx  
Ma k in g th e Se ttin g s fo r MIDI  
Fu n ctio n s  
fig.10-06  
Here is a description of the GT-6Bs MIDI functions. Set them  
as needed, depending on the intended use.  
1 . Press [UTILITY] a number of times until the following  
This sets the MIDI Transmit channel used for transmitting  
MIDI messages. When set to Rx,this MIDI channel is same  
as the MIDI Receive channel.  
screen appears.  
fig.10-03  
* This was set to “Rx” when the unit was shipped from the  
factory.  
MIDI De vice ID  
1 –3 2  
2 . Press PARAMETER [  
] [  
] so that the  
parameter that you want to set appears in the display.  
fig.10-07  
3 . Rotate the PATCH/VALUE dial to change the setting  
value.  
4 . Repeat steps 2–3 as necessary.  
This sets the Device ID used for transmitting and receiving  
Exclusive messages.  
5 . Press [EXIT] to return to the Play screen.  
MIDI RX Ch a n n e l (MIDI Re ce ive Ch a n n e l)  
1 –1 6  
* This was set to 1 when the unit was shipped from the factory.  
fig.10-03  
MIDI Sy n c Clo ck  
Au to , In te rn a l  
fig.10-08  
This sets the MIDI channel used for receiving MIDI  
messages.  
* This was set to 1 when the unit was shipped from the factory.  
You can synchronize the performance of a sequencer or other  
external MIDI device.  
MIDI O m n i Mo d e  
O m n i O ff, O m n i O n  
fig.10-05  
Auto:  
When no MIDI Clock from the external MIDI  
device is being received, the performance is  
synchronized to the tempo set in MASTER BPM;  
when the external MIDI devices MIDI Clock is  
being received, the performance is synchronized  
to that.  
When set to Omni On,messages are received on all  
Internal: The performance is synchronized to the tempo set  
channels, regardless of the MIDI channel settings.  
in MASTER BPM.  
* Even when Omni Mode is set to ON, the only Exclusive  
messages received are those for Device ID data set with  
“Device ID.”  
* This was set to “Auto” when the unit was shipped from the  
factory.  
* When you have an external MIDI device connected, the  
Master BPM is then synchronized to the external MIDI  
device’s tempo, thus disabling the Master BPM setting. If you  
want to be able to set the Master BPM, set to “Internal.”  
* This was set to “Omni On” when the unit was shipped from  
the factory.  
* When synchronizing performances to the MIDI Clock signal  
from an external MIDI device, timing problems in the  
performance may occur due to errors in the MIDI Clock.  
6 5  
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Ch a p te r 1 0 Usin g MIDI  
MIDI PC O UT (MIDI Pro g ra m Ch a n g e O u t)  
MIDI SUB CTL 1 O UT (MIDI Su b Co n tro l 1 O u t)  
O ff, O n  
O ff, 1 –3 1 , 3 3 –9 5  
fig.10-09  
fig.10-13  
This setting determines whether or not Program Change  
This sets the controller number when operation data from  
the external pedal connected to the SUB CTL 1 jack is output  
as Control Change messages. When set to Off,Control  
Change messages are not output.  
messages are output when patches are switched on the GT-  
6B.  
Off: Program Change messages are not output, even when  
patches are switched.  
MIDI SUB CTL 2 O UT (MIDI Su b Co n tro l 2 O u t)  
O ff, 1 –3 1 , 3 3 –9 5  
On: Program Change messages are simultaneously output  
when patches are switched.  
fig.10-14  
MIDI EXP O UT (MIDI Ex p re ssio n Pe d a l O u t)  
O ff, 1 –3 1 , 3 3 –9 5  
fig.10-10  
This sets the controller number when operation data from  
the external pedal connected to the SUB CTL 2 jack is output  
as Control Change messages. When set to Off,Control  
Change messages are not output.  
This sets the controller number when expression pedal  
operation data is output as Control Change messages. When  
set to Off,Control Change messages are not output.  
MIDI EXP SW O UT  
(MIDI Ex p re ssio n Pe d a l Sw itch O u t)  
O ff, 1 –3 1 , 3 3 –9 5  
fig.10-11  
This sets the controller number when expression pedal  
switch operation data is output as Control Change messages.  
When set to Off,Control Change messages are not output.  
MIDI CTL O UT (MIDI Co n tro l Pe d a l O u t)  
O ff, 1 –3 1 , 3 3 –9 5  
fig.10-12  
This sets the controller number when CTL pedal operation  
data is output as Control Change messages. When set to  
Off,Control Change messages are not output.  
6 6  
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Ch a p te r 1 0 Usin g MIDI  
W h e n Tra n sm ittin g Da ta to An o th e r GT-6 B  
Tra n sm ittin g a n d Re ce ivin g  
MIDI Da ta  
Connect as shown in the figure below, and match the Device  
ID for the transmitting and receiving devices.  
fig.10-16  
On the GT-6B, you can use Exclusive messages to provide  
another GT-6B with identical settings, and save effect  
settings on a sequencer or other device. This transmission of  
data is called Bulk Dump,while receiving such data is  
referred to as Bulk Load.”  
Tra n sm ittin g Da ta to a n Ex te rn a l  
MIDI De vice (Bu lk Du m p )  
MIDI OUT  
MIDI IN  
The following types of data can be transmitted. You can  
transmit data by specifying the range from the start to the  
end of transmission.  
Displayed  
Data Transmitted  
System  
Includes settings for utility parameters,  
Harmonist scales, Auto Slap phrases and  
overdrive/ distortion, and wah custom  
edit parameters.  
U1-1U0-4,  
u1-1u0-4  
Settings for patch Numbers U1-1 through  
U0-4 and u1-1 through u0-4  
Tra n sm ittin g  
fig.10-17  
Temp  
Settings for what is currently being played  
2
Ma k in g th e Co n n e ctio n s  
W h e n Sa vin g to a MIDI Se q u e n ce r  
Connect as shown in the figure below, and put the sequencer  
in the mode where it is standing by, ready to receive  
1,2  
Exclusive messages.  
fig.10-15  
4 3 1  
1 . Press [UTILITY], then press PARAMETER [  
]
[
] so that “Bulk Dump” is displayed.  
fig.10-18  
MIDI OUT  
MIDI IN  
2 . Press PARAMETER [  
] [  
] to move the cursor,  
and rotate the PATCH/VALUE dial to select the start  
and end of the data to be transmitted.  
3 . When the data to be sent has been determined, press  
[WRITE].  
* For instructions on operating the sequencer, refer to the  
owner’s manual for the sequencer you are using.  
The data is transmitted.  
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Ch a p te r 1 0 Usin g MIDI  
fig.10-19  
Re ce ivin g  
1 . Press [UTILITY], then press PARAMETER [  
]
[
] so that “Bulk Load” is displayed.  
fig.10-20  
When the transmission is completed, the screen prior to  
transmission returns to the display.  
4 . Press [EXIT] to return to the Play screen.  
2 . Transmit the data from the external MIDI device.  
The following appears in the display when the GT-6B  
Re ce ivin g Da ta fro m a n Ex te rn a l  
MIDI De vice (Bu lk Lo a d )  
receives the data.  
fig.10-21  
Ma k in g th e Co n n e ctio n s  
W h e n Re ce ivin g Da ta Sa ve d o n a MIDI  
Se q u e n ce r  
The following appears in the display when the GT-6B  
Connect as shown below. Set the GT-6Bs Device ID to the  
finishes receiving the data.  
fig.10-22  
same number that was used when the data was transmitted  
to the MIDI sequencer.  
fig.10-02  
Further data can be received at this point.  
3 . Press [EXIT] to quit Bulk Load.  
After you press [EXIT], Checking...appears in the  
display, indicating that the GT-6B is checking the  
received data. When the check is completed, the Play  
screen returns to the display.  
MIDI OUT  
MIDI IN  
* For instructions on operating the sequencer, refer to the  
owner’s manual for the sequencer you are using.  
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Ch a p te r 1 0 Usin g MIDI  
Pro ce d u re  
fig.10-24  
Se ttin g th e Pro g ra m Ch a n g e Ma p  
When switching patches using Program Change messages  
transmitted by an external MIDI device, you can freely set  
the correspondence between Program Change messages  
received by the GT-6B and the patches to be switched to in  
the Program Change Map.”  
2
3
In itia l Pro g ra m Ch a n g e Ma p Se ttin g s  
The Program Change Map set at the factory is shown below.  
Program Number  
Bank/ Patch Number  
1
1,4 6  
1
2
U1-1  
U1-2  
U1-3  
U1-4  
U2-1  
:
1 . Press [UTILITY], then press PARAMETER [  
]
3
[
] so that “MIDI Map Select” is displayed.  
fig.10-25  
4
5
:
:
:
:
:
2 . Rotate the PATCH/VALUE dial to select “Prog.”  
39  
40  
41  
42  
:
U0-3  
U0-4  
u1-1  
u1-2  
:
* You cannot set the Program Change Map when “Fix” is  
selected (it is not displayed).  
* See the following item for more on “MIDI Map Select.”  
3 . Press PARAMETER [  
] until “MIDI Program Map”  
appears in the display.  
fig.10-26  
:
:
:
:
79  
80  
81  
82  
:
u0-3  
u0-4  
P1-1  
P1-2  
:
Program Number  
Patch Number  
4 . Press PARAMETER [  
] [  
] to move the cursor,  
:
:
and rotate the PATCH/VALUE dial to set the received  
Program number and the corresponding patch number.  
:
:
119  
120  
121  
122  
:
P0-3  
P0-4  
P0-4  
P0-4  
:
5 . Repeat Step 4 as needed, setting patch numbers to their  
corresponding Program numbers, until the Program  
Change Map is completed.  
6 . Press [EXIT] to return to the Play screen.  
128  
P0-4  
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Ch a p te r 1 0 Usin g MIDI  
En a b lin g / Disa b lin g th e Pro g ra m  
Ch a n g e Ma p Se ttin g s (MIDI Ma p Se le ct)  
Ch a n g in g Pa tch N u m b e rs o n a n  
Ex te rn a l MIDI De vice Fro m th e GT-6 B  
This setting determines whether patches are switched  
according to the Program Change Map settings, or to the  
default settings when the GT-6B receives Program Change  
messages.  
When patches are switched with the GT-6B, a Program  
Change message is transmitted. The correspondence  
between the GT-6Bs initial bank and patch numbers and the  
transmitted Program Change messages is shown in the table  
below.  
1 . Press [UTILITY], then press PARAMETER [  
]
[
] so that “MIDI Map Select” is displayed.  
fig.10-25  
Bank/ Patch Number  
Program Number  
U1-1  
U1-2  
U1-3  
U1-4  
U2-1  
:
1
2
3
2 . Rotate the PATCH/VALUE dial to select “Fix” or  
4
“Prog.”  
5
Fix:  
Switches to the patches according to the  
default settings. For more on the default  
:
:
:
settings, refer to Initial Program Change Map  
Settings(p. 69).  
:
:
U0-3  
U0-4  
u1-1  
u1-2  
:
39  
40  
41  
42  
:
Prog:  
Switches to the patches according to the  
Program Change Map settings.  
3 . Press [EXIT] to return to the Play screen.  
:
:
:
:
u0-3  
u0-4  
P1-1  
P1-2  
:
79  
80  
81  
82  
:
:
:
:
:
P0-3  
P0-4  
119  
120  
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Ap p e n d ice s  
fig.11-102  
Ab o u t MIDI  
T.V. information from many different broadcasting station is  
sent through an antena.  
Broadcasting  
Station A  
MIDI is an acronym for Musical Instrument Digital Interface,  
and is a world-wide standard for allowing electronic musical  
equipment to communicate by transmitting messages such as  
performance information and sound selections. Any MIDI  
equipped device is able to transmit applicable types of data  
to another MIDI equipped device, even if the two devices are  
different models or were made by different manufacturers.  
Broadcasting  
Station B  
Broadcasting  
Station C  
Select the channel of the  
broadcasting station you  
wish to watch  
In MIDI, performance information such as playing a key or  
pressing a pedal are transmitted as MIDI Messages.  
MIDI has sixteen channels 1 16, and MIDI messages will be  
received by the instrument (the receiving device) whose  
channel matches the channel of the transmitter.  
Ho w MIDI m e ssa g e s a re  
tra n sm itte d a n d re ce ive d  
* If omni mode is on, data of all MIDI channels will be received  
regardless of the MIDI channel setting. If you do not need to  
control a specific MIDI channel, you may set Omni On.  
First, we will explain briefly how MIDI messages are  
transmitted and received.  
Ma in ty p e s o f MIDI m e ssa g e  
u se d b y th e GT-6 B  
MIDI co n n e cto rs  
The following types of connector are used to convey MIDI  
messages. MIDI cables are connected to these connectors as  
MIDI includes many types of MIDI messages that can convey  
a variety of information. MIDI messages can be broadly  
divided into two types; messages that are handled separately  
by MIDI channel (channel messages), and messages that are  
handled without reference to a MIDI channel (system  
messages).  
needed.  
fig.11-101  
Ch a n n e l m e ssa g e s  
These messages are used to convey performance  
information. Normally these messages perform most of the  
control. The way in which a receiving device will react to  
each type of MIDI message will be determined by the  
settings of the receiving device.  
MIDI IN:  
This connector receives messages from another  
MIDI device.  
Pro g ra m ch a n g e m e ssa g e s  
MIDI OUT: This connector transmits messages from this  
These messages are generally used to select sounds, and  
include a program change number from 1 to 128 which  
specifies the desired sound.  
device.  
MIDI THRU: This connector re-transmits the messages that  
were received at MIDI IN.  
* The GT-6B features both “MIDI IN” and “MIDI OUT”  
connectors.  
Co n tro l ch a n g e m e ssa g e s  
These messages are used to enhance the expressiveness of a  
performance. Each message includes a controller number,  
and the settings of the receiving device will determine what  
aspect of the sound will be affected by control change  
messages of a given controller number.  
MIDI ch a n n e ls  
MIDI is able to independently control more than one MIDI  
device over a single MIDI cable. This is possible because of  
the concept of MIDI channels.  
The specified parameters can be controlled with the GT-6B.  
The idea of MIDI channels is somewhat similar to the idea of  
television channels. By changing channels on a television set,  
you can view a variety of programs. This is because the  
information of a particular channel is received when the  
channels of the transmitter and receiver match.  
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Ap p e n d ice s  
Sy ste m m e ssa g e s  
Fa cto ry Se ttin g s  
System messages include exclusive messages, messages used  
for synchronization, and messages used to keep a MIDI  
system running correctly.  
Tu n e r  
TUNER Pitch:  
A= 440 Hz (p. 57)  
Ex clu sive m e ssa g e s  
Glo b a l  
Exclusive messages handle information related to a units  
own unique sounds, or other device-specific information.  
Generally, such messages can only be exchanged between  
devices of the same model by the same manufacturer.  
Exclusive messages can be employed to save the settings for  
effects programs into a sequencer, or for transferring such  
data to another GT-6B.  
NS Threshold:  
Reverb Level:  
0 dB (p. 58)  
100% (p. 58)  
Sy ste m  
LCD Contrast:  
BANK Extent:  
16 (p. 60)  
P0  
The two instruments must be set to the same device ID  
numbers when exchanging SysEx messages.  
Patch Select Mode:  
EXP Pedal Hold:  
Dial Function:  
Knob Mode:  
UP/DOWN (p. 61)  
On (p. 62)  
PATCH No.& VALUE (p. 62)  
Immediate (p. 63)  
Assignable (p. 63)  
Assignable (p. 63)  
100  
Ab o u t th e MIDI im p le m e n ta tio n  
Sub CTL1 Func:  
Sub CTL2 Func:  
Digital Out Level  
MIDI allows a variety of messages to be exchanged between  
instruments, but it is not necessarily the case that all types of  
message can be exchanged between any two MIDI devices.  
Two devices can communicate only if they both use the types  
of messages that they have in common.  
MIDI  
MIDI RX Channel:  
MIDI Omni Mode:  
MIDI TX Channel:  
MIDI Device ID:  
1 (p. 65)  
Thus, every owners manual for a MIDI device includes a  
MIDI Implementation Chart.This chart shows the types of  
message that the device is able to transmit and receive. By  
comparing the MIDI implementation charts of two devices,  
you can tell at a glance which messages they will be able to  
exchange. Since the charts are always of a uniform size, you  
Omni On (p. 65)  
Rx (p. 65)  
1 (p. 65)  
MIDI Sync Clock:  
MIDI PC OUT:  
Auto (p. 65)  
On (p. 66)  
7 (p. 66)  
MIDI EXP OUT:  
can simply place the two charts side by side.  
fig.11-103  
MIDI EXP SW OUT:  
MIDI CTL OUT:  
81 (p. 66)  
80 (p. 66)  
Off (p. 66)  
Off (p. 66)  
Fix (p. 69)  
Fold here  
MIDI Device A  
MIDI Device B  
MIDI Sub CTL1OUT:  
MIDI Sub CTL2OUT:  
MIDI Map Select:  
Function  
Transmit  
Recognized  
Remarks  
A separate publication titled MIDI Implementationis  
also available. It provides complete details concerning  
the way MIDI has been implemented on this unit. If you  
should require this publication (such as when you intend  
to carry out byte-level programming), please contact the  
nearest Roland Service Center or authorized Roland  
distributor.  
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Ap p e n d ice s  
Re sto rin g th e Fa cto ry  
Ad ju stin g th e Ex p re ssio n Pe d a l  
Se ttin g s (Fa cto ry Re se t)  
Although the GT-6Bs expression pedal has been set for  
optimum operation at the factory, extended use and the  
operating environment can result in the pedal going out of  
adjustment.  
Restoring the GT-6B to the settings made at the factory is  
referred to as Factory Reset.”  
Not only can you return all of the settings to the values in  
effect when the GT-6B was shipped from the factory, you can  
If you encounter problems such as being unable to fully cut  
off the sound with the volume pedal, you can use the  
following procedure to readjust the pedal.  
also specify the range of settings to be reset.  
fig.11-201  
2
1
3
1 . Hold down [PEDAL ASSIGN] while you switch on the  
power.  
The following messages alternate in the display.  
fig.11-601  
3
4
1 . Turn off the power.  
2 . With the pedal completely released, press [WRITE].  
The message ---OK! ---appears, and then the following  
2 . While holding down COMP/LIMITER ON/OFF button  
messages alternate in the display.  
fig.11-602  
and [TYPE VARIATION], turn on the power.  
The Factory Reset range setting screen appears in the  
display.  
fig.11-202  
The area of data you wish to factory reset  
* To cancel the Factory Reset, press [EXIT].  
* If you press [WRITE] when the pedal is not completely  
released, or when the pedal position (angle) is not correct, the  
message “--- Area Over! ---” appears in the display, and you  
are prevented from proceeding to the next step. If this occurs,  
readjust the pedal position.  
3 . Press PARAMETER [  
] [  
] to move the cursor,  
and rotate the PATCH/VALUE dial to specify the range  
of settings you want to restore to the factory settings.  
System:  
System parameters, Harmonist scales, Auto Slap phrases  
and overdrive/ distortion, and wah custom edit  
parameters  
3 . With the pedal fully depressed, press [WRITE].  
--- OK! ---appears, followed by press [EXIT].”  
#U1-1#u0-4:  
* If you press [WRITE] when the pedal is not fully depressed, or  
when the pedal position (angle) is not correct, the message “---  
Area Over! ---” appears in the display, and you are prevented  
from proceeding to the next step. If this occurs, readjust the  
pedal position.  
Settings for patch Numbers U1-1 through u0-4  
4 . If you want to proceed with the factory reset, press  
[ENTER].  
The specified range of data is restored, and the Play  
screen returns to the display.  
4 . Press [EXIT].  
After the message Checking data please wait...has  
been displayed, the Play screen returns to the display.  
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Ap p e n d ice s  
I Ca n ’t Ch a n g e Pa tch e s  
Tro u b le sh o o tin g  
Is something other than the Play screen shown in the  
display?  
If there is no sound, or if the GT-6B does not function as you  
expect, first check the following points. If the measures in  
this checklist do not resolve your problem, you should  
contact your dealer or the nearest Roland Service Center.  
On the GT-6B, patches can be selected only when the  
Play screen is displayed. Press [EXIT] to return to the  
Play screen (p. 10).  
N o so u n d / Vo lu m e is w e a k  
Pa ra m e te rs sp e cifie d w ith co n tro l  
a ssig n ca n ’t b e co n tro lle d a s in te n d e d  
Are the connection cables broken?  
Try exchanging the connection cable.  
Is the effect switched off?  
To control a parameter using the expression pedal or  
parameter you intend to control is switched on.  
Is the GT-6B correctly connected to the other devices?  
Check connections with the other devices (p. 12).  
Is the connected amp/ mixer turned off, or the volume  
lowered?  
Is something other than Assignableselected for the  
SUB CTL 1,2 function setting?  
Check the settings of the connected device.  
When operating a foot switch connected to the SUB  
EXP/ SUB CTL 1, 2 jack, set the SUB CTL 1, 2 function to  
Assignable.(p. 63)  
Is the EFFECT LEVEL knob lowered?  
Adjust the EFFECT LEVEL knob to an appropriate  
position (p. 17).  
Do the MIDI channel settings of both devices match  
(when using MIDI)?  
Is Tuner/ Bypass set to ON?  
The direct sound is not output by setting the Tuner/  
Bypass to On(p. 56).  
Make sure that the MIDI channels of both devices match  
(p. 65).  
* When “Omni On” is selected in Omni mode, messages on all  
MIDI channels are received, regardless of the MIDI channel  
settings (p. 65).  
Is each effect set correctly?  
Use the Meter function(p. 59) to check the output level  
of each effect. If there is an effect for which the meter is  
not moving, check the settings for that effect.  
Make sure that the controller numbers of both devices  
match (p. 66).  
Is FV: Levelor MST: Effect Levelspecified as a Pedal  
Assign Target?  
Vo lu m e le ve l d o e s n o t ch a n g e w ith  
Fo o t Vo lu m e  
Carry out the operation in accordance with the source.(p.  
50)  
Is OFFselected in Bypass EXP Mode (p. 55) and Noise  
Suppressor (p. 44)?  
Th e vo lu m e le ve l o f th e in stru m e n t  
co n n e cte d to IN PUT ja ck is to o lo w :  
If OFFis set in Bypass EXP Mode, note the following:  
When all effects are set to OFF, the analog bypass sound  
is output, and the volume cannot be controlled with Foot  
Volume (p. 44).  
Could you be using a connection cable that contains a  
resistor?  
Use a connection cable that does not contain a resistor.  
When CHORUS or REV/ DLY are the only effects being  
used, analog bypass sound is output for the direct  
sound, so only the effect sound is controlled with the  
FOOT VOLUME (p. 44).  
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Ap p e n d ice s  
MIDI m e ssa g e s a re n o t tra n sm itte d /  
re ce ive d  
Erro r Me ssa g e s  
If an incorrect operation is attempted or execution is not  
possible, an error message will appear in the display. When  
this occurs, continue by following the instructions indicated  
in the error message.  
Is the MIDI cable broken?  
Try using a different MIDI cable.  
Is the GT-6B correctly connected to the external MIDI  
device?  
fig.11-301  
Check connections with the other MIDI device.  
Do the MIDI channel settings of both devices match?  
Make sure that the MIDI channels on both devices match  
(p. 65).  
The memory backup battery inside the GT-6B has run  
down. (This message appears when the power is turned  
on.)  
If sending messages from the GT-6B, have you set the  
settings necessary for sending data?  
Replace the battery as soon as possible. For battery  
replacement, please contact the nearest Roland Service  
Center or your dealer.  
Check the on/ off status (p. 66) for transmission of  
Program Change messages and the settings for the  
controller numbers to be transmitted (p. 66).  
fig.11-302  
There is a problem with the MIDI cable connections.  
Check that MIDI cables have not been disconnected or  
broken.  
fig.11-303  
Youve attempted to switch patches by rotating the  
PATCH/ VALUE dial, but the Dial function (p. 62) is set  
to VALUE Only.”  
If you want to be able to switch patches using the  
PATCH/ VALUE dial, set the Dial function to PATCH  
No. & VALUE.”  
fig.11-304  
More MIDI messages were received in a short time than  
could be processed correctly.  
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Ap p e n d ice s  
MIDI Im p le m e n ta tio n Ch a rt  
fig.11-401  
BASS EFFECTS PROCESSOR  
Date: Dec. 10, 2001  
Version: 1.00  
Model GT-6B  
MIDI Implementation Chart  
Transmitted  
Recognized  
Remarks  
Function...  
Basic  
Channel  
Default  
Changed  
116  
116  
116  
116  
Memorized  
Memorized  
Default  
Messages  
Altered  
X
X
OMNI ON/OFF  
X
X
Mode  
**************  
Note  
Number :  
X
X
True Voice  
**************  
**************  
Note ON  
Note OFF  
X
X
X
X
Velocity  
After  
Touch  
Key's  
Ch's  
X
X
X
X
Pitch Bend  
X
X
131  
3363  
6495  
O
O
O
O
X
O
* 1  
* 1  
Control  
Change  
Prog  
O
O
Program Number  
: True #  
Change  
0127  
0127  
1128  
System Exclusive  
O
O
: Song Pos  
: Song Sel  
: Tune  
X
X
X
X
X
X
System  
Common  
System  
Real Time  
: Clock  
: Command  
X
O
O
X
: All sound off  
X
X
X
X
X
X
X
X
O
X
:
Local ON/ OFF  
: All Notes OFF  
: Active Sense  
: Reset  
Aux  
Message  
* 1 Recognizes messages designated for use for realtime control over parameters.”  
A separate publication titled MIDI Implementationis also available. It provides complete  
details concerning the way MIDI has been implemented on this unit. If you should require this  
publication (such as when you intend to carry out byte-level programming), please contact the  
nearest Roland Service Center or authorized Roland distributor.  
Notes  
Mode 1 : OMNI ON, POLY  
Mode 2 : OMNI ON, MONO  
O : Yes  
X : No  
Mode 3 : OMNI OFF, POLY Mode 4 : OMNI OFF, MONO  
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Ap p e n d ice s  
Ma in Sp e cifica tio n s  
GT-6 B: Ba ss Effe cts Pro ce sso r  
(REVERB/ / DELAY)  
LEVEL knob  
XLR OUTPUT jacks L/ R (MONO/ DIRECT)  
DIGITAL OUT connector (coaxial)  
SUB EXP PEDAL/ SUB CTL PEDAL 1,2 jack  
MIDI connectors IN/ OUT  
AD Co n ve rsio n  
24-bit + AF method  
ON/ OFF button  
DA Co n ve rsio n  
(PREAMP/ SPEAKER, 3 BAND PARAMETRIC EQ)  
TYPE knob  
AC Adaptor Jack  
24-bit  
GAIN knob  
Po w e r Su p p ly  
Sa m p lin g fre q u e n cy  
TREBLE knob (also used as Q knob)  
MIDDLE knob (also used as FREQUENCY knob)  
BASS knob (also used as GAIN knob)  
LEVEL knob (also used as TOTAL knob)  
SPEAKER knob  
AC 14 V: Supplied AC adaptor  
44.1 kHz  
Cu rre n t Dra w  
Pro g ra m Me m o rie s  
800 mA  
120: 80 (User) + 40 (Preset)  
PREAMP ON/ OFF button  
SPEAKER ON/ OFF button  
EQ ON/ OFF button  
Dim e n sio n s  
N o m in a l In p u t Le ve l  
515 (W) x 261 (D) x 75 (H) mm  
INPUT: -10 dBu  
20-5/ 16 (W) x 10-5/ 16 (D) x 3 (H) inches  
EQ SELECT button  
In p u t Im p e d a n ce  
(WAH)  
W e ig h t  
INPUT: 1 M  
ON/ OFF button  
4.7 kg/ 10 lbs 6 oz (excluding AC Adaptor)  
(FX-1)  
N o m in a l O u tp u t Le ve l  
ON/ OFF button  
Acce sso rie s  
OUTPUT: -10 dBu  
AC adaptor (BRC-series)  
Owners Manual  
(FX-2)  
(Standard jack, at OUTPUT LEVEL marking position)  
OUTPUT: -10 dBu (XLR jack, 600 load)  
ON/ OFF button  
Patch List  
(MASTER)  
Roland Service (Information sheet)  
O u tp u t Im p e d a n ce  
EFFECT LEVEL knob  
PARAMETER buttons L/ R  
EXIT button  
OUTPUT: 2 k (Phone jack)  
OUTPUT:  
O p tio n s  
Foot Switch:  
600 k(XLR jack, HOTCOLD)  
300 k, HOTGND, COLDGND)  
WRITE button  
FS-5U, FS-5L  
PEDAL ASSIGN button  
TUNER/ BYPASS button  
NAME/ NS/ MASTER button  
UTILITY button  
Expression Pedal:  
EV-5 (Roland)  
Dig ita l O u tp u t  
FV-300L + PCS-33 (Roland)  
Connection Cord:  
EIAJ CP1201, S/ P DIF  
EZ TONE button  
PCS-31 (Roland) (1/ 4stereo phone  
plug - 1/ 4phone plug x 2)  
Dy n a m ic Ra n g e  
Number pedals 14  
PATCH pedals (Up/ Down)  
BYPASS/ CONTROL pedal  
Expression pedal  
95 dB or greater (IHF-A)  
Co n tro l  
*
0 dBu = 0.775 Vrms  
< Front panel >  
Expression pedal switch  
PATCH/ VALUE dial  
(COMP/ LIMITER)  
ATTACK/ THRESHOLD knob  
SUSTAIN/ RATIO knob  
LEVEL knob  
In the interest of product improvement, the  
specifications and/ or appearance of this unit  
are subject to change without prior notice.  
< Rear panel >  
OUTPUT LEVEL knob  
OUTPUT SELECT switch  
Power Switch  
On/ Off button  
TYPE VARIATION button  
AF Me th o d  
(Ad a p tive Fo cu s Me th o d )  
Disp la y  
(OVERDRIVE/ DISTORTION)  
DRIVE knob  
16 characters, 2 lines (backlit LCD)  
7 segments, 2 characters (LED)  
This is a proprietary method from  
Roland that vastly improves the signal-  
to-noise (S/ N) ratio of the A/ D and  
D/ A converters.  
LEVEL knob  
ON/ OFF button  
TYPE VARIATION button  
Co n n e cto rs  
INPUT jack  
(CHORUS)  
Output Jacks L (MONO)/ R  
Headphone Jack  
LEVEL knob  
ON/ OFF button  
7 7  
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In d e x  
Numerics  
A
B
C
D
7 8  
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In d e x  
M
N
O
P
7 9  
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In d e x  
T
U
V
W
X
8 0  
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MEMO  
8 1  
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MEMO  
8 2  
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For EU Countries  
CAUTION  
Danger of explosion if battery is  
incorrectly replaced.  
Replace only with the same or  
equivalent type recommended by the  
manufacturer.  
Apparatus containing  
Lithium batteries  
Discard used batteries according to the  
manufacturers instructions.  
ADVARSEL!  
Lithiumbatteri - Eksplosionsfare ved  
fejlagtig håndtering.  
Udskiftning må kun ske med batteri af  
samme fabrikat og type.  
VARNING  
Explosionsfara vid felaktigt batteribyte.  
Använd samma batterityp eller en  
ekvivalent typ som rekommenderas av  
apparattillverkaren.  
Levér det brugte batteri tilbage til  
leverandøren.  
Kassera använt batteri enligt  
fabrikantens instruktion.  
ADVARSEL  
Eksplosjonsfare ved feilaktig skifte av  
batteri.  
VAROITUS  
Paristo voi räjähtää, jos se on  
virheellisesti asennettu.  
Benytt samme batteritype eller en  
tilsvarende type anbefalt av  
apparatfabrikanten.  
Brukte batterier kasseres i henhold til  
fabrikantens instruks joner.  
Vaihda paristo ainoastaan  
laitevalmistajan suosittelemaan  
tyyppiin. Hävitä käytetty paristo  
valmistajan ohjeiden mukaisesti.  
For EU Countries  
For the USA  
This product complies with the requirements of European Directive 89/336/EEC.  
FEDERAL COMMUNICATIONS COMMISSION  
RADIO FREQUENCY INTERFERENCE STATEMENT  
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the  
FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential  
installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in  
accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee  
that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or  
television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the  
interference by one or more of the following measures:  
Reorient or relocate the receiving antenna.  
Increase the separation between the equipment and receiver.  
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.  
Consult the dealer or an experienced radio/TV technician for help.  
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:  
(1) This device may not cause harmful interference, and  
(2) This device must accept any interference received, including interference that may cause undesired operation.  
Unauthorized changes or modification to this system can void the users authority to operate this equipment.  
This equipment requires shielded interface cables in order to meet FCC class B Limit.  
For Canada  
NOTICE  
This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.  
AVIS  
Cet appareil numérique de la classe B respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.  
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G601744601  
00-xx-xx-xxx  
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