BOSSCO GS-10 User manual

Owner’s Manual
03342912 ‘04-2-3N
Thank you, and congratulations on your choice of the
BOSS GS-10 Guitar Effects System with USB Audio Interface.
Before using this unit, carefully read the sections entitled:
• USING THE UNIT SAFELY (page 2–3)
• IMPORTANT NOTES (page 4–5)
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.
Copyright © 2003 BOSS CORPORATION
All rights reserved. No part of this publication may be reproduced in any form
without the written permission of BOSS CORPORATION.
■ Printing Conventions in This Manual
• Text or numerals enclosed in square brackets [ ] indicate buttons.
[WRITE] WRITE button
[USB] USB button
•Reference such as (p. **) indicate pages in this manual to which you
can refer.

This product complies with the requirements of European Directive 89/336/EEC.
For EU Countries
For EU Countries
Apparatus containing
Lithium batteries
ADVARSEL!
Lithiumbatteri - Eksplosionsfare ved
fejlagtig håndtering.
Udskiftning må kun ske med batteri af
samme fabrikat og type.
Levér det brugte batteri tilbage til
leverandøren.
VARNING
Explosionsfara vid felaktigt batteribyte.
Använd samma batterityp eller en
ekvivalent typ som rekommenderas av
apparattillverkaren.
Kassera använt batteri enligt
fabrikantens instruktion.
CAUTION
Danger of explosion if battery is
incorrectly replaced.
Replace only with the same or
equivalent type recommended by the
manufacturer.
Discard used batteries according to the
manufacturer’s instructions.
ADVARSEL
Eksplosjonsfare ved feilaktig skifte av
batteri.
Benytt samme batteritype eller en
tilsvarende type anbefalt av
apparatfabrikanten.
Brukte batterier kasseres i henhold til
fabrikantens instruks joner.
VAROITUS
Paristo voi räjähtää, jos se on
virheellisesti asennettu.
Vaihda paristo ainoastaan
laitevalmistajan suosittelemaan
tyyppiin. Hävitä käytetty paristo
valmistajan ohjeiden mukaisesti.
For Canada
This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
Cet appareil numérique de la classe B respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.
NOTICE
AVIS
For the USA
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.
Tested To Comply With FCC Standards
FOR HOME OR OFFICE USE
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.
USING THE UNIT SAFELY
001
• Before using this unit, make sure to read the
instructions below, and the Owner’s Manual.
..........................................................................................................
002c
•Do not open (or modify in any way) the unit or its
AC adaptor.
..........................................................................................................
003
• Do not attempt to repair the unit, or replace parts
within it (except when this manual provides
specific instructions directing you to do so). Refer
all servicing to your retailer, the nearest Roland
Service Center, or an authorized Roland
distributor, as listed on the “Information” sheet.
..........................................................................................................
004
• Never use or store the unit in places that are:
• Subject to temperature extremes (e.g., direct
sunlight in an enclosed vehicle, near a heating
duct, on top of heat-generating equipment); or
are
• Damp (e.g., baths, washrooms, on wet floors);
or are
• Humid; or are
• Exposed to rain; or are
• Dusty; or are
• Subject to high levels of vibration.
..........................................................................................................
007
•Make sure you always have the unit placed so it is
level and sure to remain stable. Never place it on
stands that could wobble, or on inclined surfaces.
..........................................................................................................
008c
• Be sure to use only the AC adaptor supplied with
the unit. Also, make sure the line voltage at the
installation matches the input voltage specified on
the AC adaptor’s body. Other AC adaptors may
use a different polarity, or be designed for a
different voltage, so their use could result in
damage, malfunction, or electric shock.
..........................................................................................................
009
• Do not excessively twist or bend the power cord,
nor place heavy objects on it. Doing so can
damage the cord, producing severed elements and
short circuits. Damaged cords are fire and shock
hazards!
..........................................................................................................
010
• This unit, either alone or in combination with an
amplifier and headphones or speakers, may be
capable of producing sound levels that could
cause permanent hearing loss. Do not operate for
a long period of time at a high volume level, or at
a level that is uncomfortable. If you experience
any hearing loss or ringing in the ears, you should
immediately stop using the unit, and consult an
audiologist.
..........................................................................................................
011
•Do not allow any objects (e.g., flammable material,
coins, pins); or liquids of any kind (water, soft
drinks, etc.) to penetrate the unit.
..........................................................................................................
012b
• Immediately turn the power off, remove the AC
adaptor from the outlet, and request servicing by
your retailer, the nearest Roland Service Center, or
an authorized Roland distributor, as listed on the
“Information” sheet when:
• The AC adaptor, the power-supply cord, or the
plug has been damaged; or
• If smoke or unusual odor occurs
• Objects have fallen into, or liquid has been
spilled onto the unit; or
• The unit has been exposed to rain (or otherwise
has become wet); or
•The unit does not appear to operate normally or
exhibits a marked change in performance.
..........................................................................................................
Used for instructions intended to alert
the user to the risk of injury or material
damage should the unit be used
improperly.
* Material damage refers to damage or
other adverse effects caused with
respect to the home and all its
furnishings, as well to domestic
animals or pets.
Used for instructions intended to alert
the user to the risk of death or severe
injury should the unit be used
improperly.
The ●symbol alerts the user to things that must be
carried out. The specific thing that must be done is
indicated by the design contained within the circle. In
the case of the symbol at left, it means that the power-
cord plug must be unplugged from the outlet.
The symbol alerts the user to important instructions
or warnings.The specific meaning of the symbol is
determined by the design contained within the
triangle. In the case of the symbol at left, it is used for
general cautions, warnings, or alerts to danger.
The symbol alerts the user to items that must never
be carried out (are forbidden). The specific thing that
must not be done is indicated by the design contained
within the circle. In the case of the symbol at left, it
means that the unit must never be disassembled.
2

3
013
• 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.
..........................................................................................................
014
• Protect the unit from strong impact.
(Do not drop it!)
..........................................................................................................
015
•Do not force the unit’s power-supply cord to share
an outlet with an unreasonable number of other
devices. Be especially careful when using
extension cords—the total power used by all
devices you have connected to the extension
cord’s 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.
..........................................................................................................
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 “Information” sheet.
..........................................................................................................
023
• DO NOT play a CD-ROM disc on a conventional
audio CD player. The resulting sound may be of a
level that could cause permanent hearing loss.
Damage to speakers or other system components
may result.
..........................................................................................................
101b
• The unit and the AC adaptor should be located so
their location or position does not interfere with
their proper ventilation.
..........................................................................................................
102c
• Always grasp only the plug on the AC adaptor
cord when plugging into, or unplugging from, an
outlet or this unit.
..........................................................................................................
103b
• At regular intervals, you should unplug the AC
adaptor and clean it by using a dry cloth to wipe
all dust and other accumulations away from its
prongs. Also, disconnect the power plug from the
power outlet whenever the unit is to remain
unused for an extended period of time. Any
accumulation of dust between the power plug and
the power outlet can result in poor insulation and
lead to fire.
..........................................................................................................
104
• 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.
..........................................................................................................
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.
..........................................................................................................
110b
• Whenever you suspect the possibility of lightning
in your area, disconnect the AC adaptor from the
outlet.
..........................................................................................................

4
IMPORTANT NOTES
291a
In addition to the items listed under “USING THE UNIT SAFELY” on page 2–3, please read and observe the following:
Power Supply
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).
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.
Placement
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.
352a
• This device may interfere with radio and television
reception. Do not use this device in the vicinity of such
receivers.
352b
• Noise may be produced if wireless communications
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.
354a
• Do not expose the unit to direct sunlight, place it near
devices that radiate heat, leave it inside an enclosed
vehicle, or otherwise subject it to temperature extremes.
Excessive heat can deform or discolor the unit.
355b
• When moved from one location to another where the
temperature and/or humidity is very different, water
droplets (condensation) may form inside the unit. Damage
or malfunction may result if you attempt to use the unit in
this condition. Therefore, before using the unit, you must
allow it to stand for several hours, until the condensation
has completely evaporated.
Maintenance
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.
402
• Never use benzine, thinners, alcohol or solvents of any
kind, to avoid the possibility of discoloration and/or
deformation.
Repairs and Data
452
• Please be aware that all data contained in the unit’s
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), computer, 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.
Memory Backup
501b
• This unit contains a battery which powers the unit’s
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 “Information” sheet.
“Battery Low !! Please Change”
Additional Precautions
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 unit’s memory in another MIDI
device (e.g., a sequencer), or computer.
552
•Unfortunately, it may be impossible to restore the contents
of data that was stored in another MIDI device (e.g., a
sequencer), or computer 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 unit’s
buttons, sliders, or other controls; and when using its jacks
and connectors. Rough handling can lead to malfunctions.
554
• Never strike or apply strong pressure to the display.
556
• When connecting / disconnecting all cables, grasp the
connector itself—never pull on the cable. This way you
will avoid causing shorts, or damage to the cable’s
internal elements.
558a
• To avoid disturbing your neighbors, try to keep the unit’s
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).

5
IMPORTANT NOTES
559a
• 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.
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.
Handling CD-ROMs
563
• Unauthorized duplication, reproduction, hiring, and
lending prohibited.
564
• Before you open the included CD-ROM, you must read
the “license agreement.” Opening the CD-ROM will be
taken to mean your acceptance of the license agreement.
801
• Avoid touching or scratching the shiny underside
(encoded surface) of the disc. Damaged or dirty CD-ROM
discs may not be read properly. Keep your discs clean
using a commercially available CD cleaner.
962b
• In the interest of product improvement, the specifications
and/or contents of this package are subject to change
without prior notice.
• DO NOT play a CD-ROM disc on a conventional audio
CD player. The resulting sound may be of a level that
could cause permanent hearing loss. Damage to speakers
or other system components may result.
Copyright
851
•Unauthorized recording, distribution, sale, lending, public
performance, broadcasting, or the like, in whole or in part,
of a work (musical composition, video, broadcast, public
performance, or the like) whose copyright is held by a
third party is prohibited by law.
852a
• When exchanging audio signals through a digital
connection with an external instrument, this unit can
perform recording without being subject to the restrictions
of the Serial Copy Management System (SCMS). This is
because the unit is intended solely for musical production,
and is designed not to be subject to restrictions as long as
it is used to record works (such as your own composi-
tions) that do not infringe on the copyrights of others.
(SCMS is a feature that prohibits second-generation and
later copying through a digital connection. It is built into
MD recorders and other consumer digital-audio
equipment as a copyright-protection feature.)
853
• Do not use this unit for purposes that could infringe on a
copyright held by a third party. We assume no responsi-
bility whatsoever with regard to any infringements of
third-party copyrights arising through your use of this
unit.
204
* Microsoft and Windows are registered trademarks of Microsoft Corporation.
206e
* Screen shots in this documents are reprinted with permission from Microsoft Corporation.
206j
* Windows® is known officially as: “Microsoft® Windows® operating system.”
207
* Apple and Macintosh are registered trademark of Apple Computer, Inc.
209
* MacOS is a trademark of Apple Computer, Inc.
220
* All product names mentioned in this document are trademarks or registered trademarks of their respective owners.
231
* OMS is a registered trademark of Opcode Systems, Inc.
232
* FreeMIDI is a trademark of Mark of the Unicorn, Inc.

6
Contents
USING THE UNIT SAFELY ...................2
IMPORTANT NOTES ..........................4
Main Features ..................................9
Panel Descriptions ..........................10
Front Panel.......................................................................10
Rear Panel........................................................................12
Signal Flow......................................................................13
Chapter 1
Playing Sounds ..............................14
Making the Connections...............................................14
Turning On the Power ..................................................15
Turning Off the Power..............................................15
Using the GS-10’s Speakers .........................................15
Adjusting the Output Level .........................................15
Setting Output Device (Amps)
(OUTPUT SELECT) .......................................................16
Connecting
Audio Devices to the AUX INPUT Jack.....................17
Using the Digital Output..............................................17
Chapter 2
Creating Your Own Favorite Tones
(Patches) ........................................18
What is a Patch?..............................................................18
How to Select Patches (Patch Change).......................18
About the Display Indication ..................................18
If the Patch Does Not Switch ...................................18
Selecting the Input (INPUT SELECT)........................19
Setting the Mic Input Level (MIC GAIN) ..............20
Adjusting the Tones with the Knobs .........................21
Turning the Effect On and Off....................................22
Setting the Effects Simply (QUICK FX) ....................22
Making More Precise Effect Settings.........................23
Naming Patches..............................................................24
Changing the Connection Order of Effects
(Effect Chain) ..................................................................24
Chapter 3
Saving the Tones You Have Created
.....25
Storing Patches (PATCH WRITE)...............................25
Copying Patches .............................................................25
Exchanging Patches........................................................26
Initializing Patches ........................................................26
Registering Your Favorite Patches
(DIRECT PATCH)..........................................................27
Copying the PREAMP/SPEAKER Settings
to Another Channel........................................................27
Chapter 4
Introduction to Effects and Parameters
....28
PREAMP/SPEAKER
(Preamp/Speaker Simulator)........................................28
COMP (Compressor) .....................................................31
OD/DS (Overdrive/Distortion)....................................32
DELAY..............................................................................33
CHORUS..........................................................................34
REVERB ...........................................................................34
EQ (Equalizer).................................................................35
FX-1....................................................................................36
PW (Pedal Wah).........................................................36
AW (Auto Wah).........................................................36
TM (Tone Modify) .....................................................37
ACS (Advanced Compressor)..................................38
LM (Limiter) ...............................................................38
ENH (Enhancer).........................................................39
SG (Slow Gear)...........................................................39
TR (Tremolo) ..............................................................39
DF (Defretter) .............................................................40
RM (Ring Modulator)................................................40
FB (Feedbacker)..........................................................40
FX-2....................................................................................41
PH (Phaser).................................................................42
FL (Flanger) ................................................................42
HR (Harmonist) .........................................................43
PS (Pitch Shifter) ........................................................44
OC (Octave) ................................................................45
PB (Pedal Bend)..........................................................45
2CE (2x2 Chorus) .......................................................45
PAN .............................................................................46

7
Contents
VB (Vibrato)................................................................46
UV (Uni-V) .................................................................47
RT (Rotary) .................................................................47
SDD (Short Delay) .....................................................48
HU (Humanizer)........................................................48
SL (Slicer) ....................................................................49
AR (Auto Riff)............................................................49
SYN (Guitar Synth) ...................................................50
BS (Bass Simulator) ...................................................52
SEQ (Stereo Equalizer)..............................................52
NAME/NS/MASTER .....................................................53
Name (Patch Name)..................................................53
Noise Suppressor.......................................................53
Master..........................................................................54
Foot Volume...............................................................54
Effect Chain ................................................................54
Chapter 5
Creating Original Effects Types (Customize)
..55
Customizing the COSM Amps....................................55
Customizing the Speakers............................................56
Customizing Overdrive and Distortion.....................56
Customizing Pedal Wah ...............................................57
Chapter 6
Setting the External Pedal Functions
.....58
Setting the External Expression Pedal Functions
(Expression Pedal Function)
..............................................58
Setting the External Foot Switch Functions
(Control 1, 2 Function)...................................................59
Setting the External Pedal Function
for Individual Patches (Assign)...................................60
Quick Settings ............................................................60
Manual Settings .........................................................61
Chapter 7
Convenient Functions and System Settings
...64
Tuning the Guitar ..........................................................64
Turning the Tuner Function On ..............................64
About the Display During Tuning..........................64
How to Tune...............................................................64
Changing the Tuner Settings ...................................64
Adjusting the Display Contrast
(LCD Contrast)................................................................65
Limiting the Patches
That Can Be Switched (Patch Extent) .........................65
Keeping the Same Pedal Operations
When Switching Patches (Assign Hold)....................66
Setting the Knob Functions (Knob Mode) ................66
Checking the Effect Output Level
with the Level Meter......................................................67
Chapter 8
Using the GS-10 with
External MIDI Devices Connected ....68
Operations Using MIDI ................................................68
Operating From the GS-10........................................68
Remotely Controlling the GS-10
Using an External MIDI Device...............................68
Making the Settings for MIDI Functions..................69
Transmitting and Receiving Settings Data ...............71
Transmitting Data
to an External MIDI Device (Bulk Dump) .............71
Receiving Data
from an External MIDI Device (Bulk Load)...........72
Setting the Program Change Map...............................73
Enabling/Disabling the
Program Change Map Settings (MIDI Map Select)
.......74
Changing Patch Numbers
on an External MIDI Device From the GS-10 ...........74
Controlling Recorders and Sequencers Remotely
from the GS-10 (Remote Control)
.....................................75
Setting the Messages
Used for Controlling Devices...................................75
Controlling the Device Remotely ............................76

8
Contents
Chapter 9
Using the GS-10
Connected to a Computer Via USB
.......78
Before Connecting with USB.......................................78
Driver Mode ...............................................................78
Setting USB-Related Functions...................................78
Adjusting the Recording Level
(Output Level)............................................................78
Adjusting the Playback Volume Level
(Input Level)...............................................................78
Enabling and Disabling
the Direct Monitor Command .................................79
Switching the Output Signals
(Direct Monitor).........................................................79
Setting the Output Mode..........................................79
Switching the Driver Mode......................................80
Recording the GS-10’s Output
with a Computer.............................................................81
Applying Effects with the GS-10
to a Computer’s Audio Playback.................................81
Running the GS-10 from a Computer ........................81
Using the GS-10 As a MIDI Interface ........................81
Appendices ....................................82
About MIDI.....................................................................82
How MIDI messages are transmitted
and received ...............................................................82
Main types of MIDI message
used by the GS-10 ......................................................82
About the MIDI implementation ............................83
About USB.......................................................................83
Error Messages................................................................83
Patch List..........................................................................84
Restoring the Factory Settings
(Factory Reset).................................................................86
Factory Settings..........................................................86
MIDI Implementation Chart .......................................87
Specifications..................................................................88
Installing &
Setup the USB Driver ......................91
Installing &
Setting Up the Driver (Windows) ...............................92
Installing &
Setting Up the Driver (Macintosh) ...........................112
Setting the Special Driver’s Functions.....................128
Troubleshooting ...........................130
Problems when using the GS-10 ...............................130
Problems with the sound........................................130
Other Problems ........................................................131
Problems related to the USB driver ..........................131
Problems when using the USB driver......................133
Deleting the special driver .........................................139
Index ...........................................140

9
Main Features
True “Tabletop Guitar Effects System”
This is an all-new guitar effects system, which gives you not only the kind of professional-quality effects
available only from BOSS, but features a USB interface and built-in monitor speakers as well.
Internal Effects Derived from the GT-6/GT-6B, Made More Powerful
All components of the GT-6 and GT-6B COSM amps and effects, famous for their sonic quality and ease of
use, have been thoroughly improved in this system. With its new amp types and effects, the GS-10 takes
you to a new dimension in sound creation.
The Functions You Want for Digital Recording
The GS-10 not only gives you the recording capabilities you would expect with its DIGITAL OUT (coaxial)
connector, it also allows you to record simply and easily via USB. What’s more, you can also record the
direct sound while listening to the performance as it sounds with the effects added, and add effects to
sounds that have already been recorded.
Accepts Multiple Inputs
You can use the GS-10 not just with your guitar, but as an audio interface for input of sounds from bass
guitars, mics, and external stereo equipment. The GS-10 also includes amp types and effects for basses,
giving you total song-creation capabilities all in one single device.
Stereo Monitor Speakers Built-In
The GS-10 comes with its own monitor speakers, so you can enjoy creating and performing music all with
one unit.
GS-10 Editor and GS-10 Librarian Included
In addition to intuitive knob controls, the GS-10 also includes the “Editor” software for use in creating
sounds and “Librarian” software for managing the tones you have created. These softwares let you
perform the procedures for creating sounds and changing effect connection sequences easily from your
computer screen.
WDM/ASIO-Compatible USB Driver
The GS-10 comes with a GS-10-exclusive driver for stable, high-quality recording and playback. Now enjoy
high-quality audio recordings with 24-bit and ASIO applications.
COSM (Composite Object Sound Modeling)
Composite Object Sound Modeling (COSM) is Roland’s innovative and powerful sound modeling technology. COSM analyzes
the many factors that make up the original sound, such as the electrical and physical characteristics of the original, and then
produces a digital model that can reproduce the same sound.

10
Panel Descriptions
Front Panel
fig.00-041
1. Display
A variety of information about the GS-10 appears here.
Normally, patch names are displayed.
2. PREAMP/SPEAKER (p. 21, p. 28)
(Preamp/Speaker Simulator)
GAIN Knob
Adjusts the degree of preamp distortion.
BASS Knob
Adjusts the sound quality of the preamp’s low-
frequency range.
MIDDLE Knob
Adjusts the sound quality of the preamp’s midrange.
TREBLE Knob
Adjusts the sound quality of the preamp’s high-
frequency range.
PRESENCE Knob
Adjusts the sound quality in the preamp’s ultra-high-
frequency range.
LEVEL Knob
Adjusts the preamp volume level.
PREAMP/SPEAKER On/Off Button
Press to change the settings.
CHANNEL SELECT Button
Switches the preamp channel.
3. COMP (Compressor) (p. 21, p. 31)
SUSTAIN Knob
Adjusts the compressor’s sustain effect (an effect that
keeps the sound playing).
COMP On/Off Button
Press to change the settings.
4. OD/DS (p. 21, p. 32)
(Overdrive/Distortion)
DRIVE Knob
Adjusts the degree of overdrive or distortion.
LEVEL Knob
Adjusts the overdrive/distortion volume level.
OD/DS On/Off Button
Press to change the settings.
5. DELAY (p. 21, p. 33)
FEEDBACK Knob
Adjusts the number of times the delay is repeated.
LEVEL Knob
Adjusts the volume level of the delay sound.
DELAY On/Off Button
Press to change the settings.
1
15
2
3 4 5 6 7
8
9
16 22
27 28
10 17
11
12 13 14
25
18
19
23
20
24
21
26

11
Panel Descriptions
TAP Button
Use this when setting the delay time with the tap input.
(p. 33)
6. CHORUS (p. 21, p. 34)
LEVEL Knob
Adjusts the volume level of the chorus sound.
CHORUS On/Off Button
Press to change the settings.
7. REVERB (p. 21, p. 34)
LEVEL Knob
Adjusts the volume level of the reverb sound.
REVERB On/Off Button
Press to change the settings.
8. FX-1 (p. 36)
FX-1 On/Off Button
Press to change the settings.
9. FX-2 (p. 41)
FX-2 On/Off Button
Press to change the settings.
10. EQ (Equalizer) (p. 35)
EQ On/Off Button
Press when changing the settings.
11. NAME/NS/MASTER Button (p. 24, p. 53)
Use for naming patches (NAME), setting the noise
suppressor (NS), and making the master settings
(MASTER).
12. ASSIGN Button (p. 60)
Use this to make settings for the expression pedal and
control pedal.
13. INPUT SELECT Button
Selects the input signal to which the effect is applied.
14. QUICK FX Button (p. 22)
Using the Quick Settings lets you complete the settings
procedure quickly and easily.
15. PATCH/VALUE Dial
Use this when switching patches and changing the
values of settings.
16. PARAMETER Buttons
Press to select parameters.
* 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 GS-10 jumps to the last (or
initial) parameter.
17. EXIT Button
Use this to undo operations.
18. WRITE Button
Press to store settings.
19. AUX INPUT LEVEL Knob
Adjusts the volume of the input from the AUX INPUT
jack.
* Setting the input level too high may result in oscillation.
20. OUTPUT LEVEL Knob
Adjusts the GS-10’s output level and the unit’s speaker
volume.
21. USB Button (p. 78)
Used when making USB-related settings.
The indicator lights when the GS-10 is connected to
your computer.
22. SPEAKER ON/OFF Button (p. 15)
Switches the GS-10’s speakers on and off.
23. METER Button (p. 67)
Press to use the meter function.
24. SYSTEM Button
Use for making settings for the GS-10’s overall
operating environment.
25. TUNER Button (p. 64)
Press to use the tuner function.
26. DIRECT PATCH Button (p. 18)
Allows you to directly call up your favorite patches
registered in the GS-10.
27. PHONES Jack
Connect the stereo headphones here.
28. GUITAR/BASS Jack
The guitar or bass is connected here.

12
Panel Descriptions
Rear Panel
fig.00-042
1. MIC INPUT Jack/Connector
Input jack/connector for use with mics. Both standard
TRS type and XLR type are provided.
* Use only one of these jacks at a time.
* Not compatible with phantom power.
2. AUX INPUT Jacks L/R
Used for connecting a CD player or similar audio
device, rhythm machine, sound module, or similar
devices.
3. OUTPUT Jacks L/R
Used for connecting to an audio set, recorder, mixer, or
similar equipment.
4. GUITAR AMP OUT Jack
Connect your guitar amp here.
5. EXP PEDAL/CTL 1,2
(Expression Pedal/Control Pedal 1,2) Jack
Connect an optional expression pedal (such as the EV-
5) or foot switch (such as the FS-5U) here.
6. DIGITAL OUT Connector
Outputs digital audio signals.
7. USB Connector
Use a USB cable to connect this connector to your
computer to exchange data between the GS-10 and the
computer.
8. MIDI IN/OUT Connector
Connect an external MIDI device to these connectors to
transmit and receive MIDI messages
9. POWER switch
Turns the power on and off.
10. AC Adaptor Jack
Connect the included AC adaptor (BRC series) here.
11. Cord Hook
Hook the AC adaptor cord here to prevent the adaptor
plug from being disconnected.
12. Security Slot ( )
http://www.kensington.com/
2 4 6
31 5 7 10
9 1112
8

13
Panel Descriptions
Signal Flow
fig.00-043
MIDI OUT MIDI IN CONTROL OUT CONTROL IN GS-10 OUT GS-10 IN
CONTROL
MULTI EFFECTS
A/D D/A
USB
INPUT
SELECT
MIDI
SELECT
Computer
EXP/CTL 1, 2
GUITAR/
BASS
MIC
INPUT
AUX
INPUT
Foot Switch
Expression Pedal
Guitar/Bass
Mic
CD/MD
Sound
Module
Sequencer
Mixer etc.
Speaker
MIDI OUT
MIDI IN
PHONES
OUTPUT
GUITAR
AMP OUT
Headphones
Guitar Amp
Recorder
etc.
DIGITAL
OUT
Audio signal
Control or MIDI signal

14
Chapter 1 Playing Sounds
Making the Connections
fig.01-010
* 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.
* Turn up guitar amp and audio amp volume levels and the GS-
10’s OUTPUT LEVEL only after turning on the power to all
connected devices.
●To prevent the inadvertent 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.
fig.01-020
●This instrument is equipped with balanced (XLR/TRS)
type MIC INPUT jacks. Wiring diagrams for these jacks
are shown below. Make connections after first checking
the wiring diagrams of other mic you intend to connect.
fig.01-021
* Not compatible with phantom power.
●Howling could be produced depending on the location
of mics relative to speakers. This can be remedied by:
1. Changing the orientation of the mic(s).
2. Relocating mic(s) at a greater distance from
speakers.
3. Lowering volume levels.
Foot Switch
(FS-5U, etc.)
Expression Pedal
(Roland EV-5, etc.)
Mic
Stereo Headphones
or
Guitar Amp
AC Adaptor
(BRC series)
Mixer
Guitar
or
Bass
Computer

15
Chapter 1 Playing Sounds
Section 1
●When using the unit with an expression pedal connected
to the EXP PEDAL/CTL 1,2 jack, set Minimum Volume
to the “MIN” position.
●Use only the specified expression pedal (Roland EV-5;
optional). By connecting any other expression pedals,
you risk causing malfunction and/or damage to the unit.
●When using the unit with a foot switch (FS-5U; optional)
connected to the EXP PEDAL/CTL 1,2 jack, set the
polarity switch as shown below.
fig.01-030
* You can use the special (optional Roland) PCS-31 connector
cord to connect two foot switches.
fig.01-040
Turning On the Power
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.
1. Before turning on the power, confirm the following.
• Are all external devices properly connected?
• Is the volume on the GS-10, your amp, and all other
connected devices turned down to the minimum level?
2. Switch ON the POWER switch on the GS-10’s rear panel.
A few seconds later, the unit enters the ordinary
performance mode. The screen that appears at this point
is called the “Play screen.”
fig.01-050d
* Upon power-up, 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 guitar amp and audio
devices.
Turning Off the Power
1. Before turning off the power, confirm the following.
• Is the volume on the GS-10, your amp, and all other
connected devices turned down to the minimum level?
2. Turn off the power to guitar amp and audio devices.
3. Turn the GS-10’s power off.
Using the GS-10’s Speakers
Press [SPEAKER ON/OFF], causing the indicator to light.
fig.01-050
* When not using the GS-10’s speakers, press [SPEAKER ON/
OFF], so the indicator is off.
Adjusting the Output Level
Adjust the GS-10’s output level and speaker volume with the
OUTPUT LEVEL knob.
fig.01-060
Polarity
Switch
White Red
PCS-31
When using the unit with a foot switch (the optional FS-
5U) connected to the EXP PEDAL/CTL 1,2 jack, make
the settings given on p. 59.

16
Chapter 1 Playing Sounds
Setting Output Device
(Amps) (OUTPUT SELECT)
Select the type of output device connected to the OUTPUT
jack or GUITAR AMP OUT jack.
fig.01-061
1. Press [SYSTEM], causing the indicator to light.
The Output Select settings screen appears.
fig.01-070d
2. Turn the PATCH/VALUE dial to select the type of
device connected to the OUTPUT jack or GUITAR
AMP OUT jack.
Line/Phones
Set this when connecting the OUTPUT jack to an audio
set or when connecting a recorder for recording.
Use this setting also when using the GS-10’s speakers or
headphones.
Combo AMP
Use this setting when connecting to the guitar input of a
combo amp (where the amp and speaker or speakers are
combined in a single unit).
Stack AMP
Use this setting when connecting to the guitar input of a
stack-type guitar amp (where the amp and speaker or
speakers are separated).
Combo Return
Use this setting when connecting to RETURN with a
combo amp.
Stack Return
Use this setting when connecting to RETURN of a stack
amp or rack mounted power amp.
3. Press [EXIT] to return to the Play screen.
* Set OUTPUT SELECT as shown below, when the PREAMP/
SPEAKER type (p. 29) is set to CONCERT 810, SESSION,
BASS 360, T.E., B-MAN, FLIP TOP, Bass Clean, Bass
Crunch, Bass HiGain, or Mic Preamp.
When connecting to an audio amp or similar equipment:
Line/Phones
When connecting to a guitar amp:
Combo Amp or Combo Return
When connecting to a bass amp:
Stack Amp or Stack Return
To derive the maximum performance from the GS-10, be
sure to make the correct setting for OUTPUT SELECT,
the one that’s most suitable for your setup.
13
2
Guitar Tuning
You can use the GS-10’s built-in “tuner function” to tune
your guitar.
For instructions on using this function, refer to “Tuning
the Guitar” (p. 64).

17
Chapter 1 Playing Sounds
Section 1
Connecting Audio Devices to
the AUX INPUT Jack
When using a CD or MD player, rhythm machine, or similar
device for practice, connect these device to the AUX INPUT
jack on the rear panel.
fig.01-080
Use the AUX INPUT knob on the front panel to adjust the
input volume level for AUX INPUT.
* Setting the input level too high may result in oscillation.
fig.01-090
The input sounds from the AUX INPUT jack are mixed with
the guitar sounds within the GS-10, making this a convenient
feature when using the GS-10’s speakers or headphones.
* The mixed sound is not output from DIGITAL OUT.
Using the Digital Output
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
with no degradation in sound quality.
fig.01-100
CD/MD Player
Rhythm Machine
AUX INPUT
You can set INPUT SELECT and use USB to record the
input sounds from the AUX INPUT jack to your
computer, and record to a recorder using DIGITAL OUT.
You can also add effects to the sounds input from the
AUX INPUT jack.
For instructions on setting INPUT SELECT, refer to
“Selecting the Input (INPUT SELECT)” (p. 19).
Digital Recorder
DIGITAL IN

18
Chapter 2 Creating Your Own Favorite Tones (Patches)
What is a Patch?
The GS-10 can store 200 combinations (or “sets”) of effects
and parameter settings. Each of these sets is called a “patch.”
Patches include both User patches and Preset patches.
fig.02-010
User Patches (U001–U100)
Newly created effects settings are saved in the User patches.
*A“U” appears in the display when a User patch is being used.
fig.02-020d
Preset Patches (P101–P200)
The Preset patches contain effect settings that really help
bring out the special characteristics of the GS-10.
Although you cannot overwrite the Preset patches with your
own settings, you can change (edit) a Preset patch’s settings,
then save the result as a User patch. (p. 25)
*A“p” appears in the display when a Preset patch is being
used.
fig.02-030d
How to Select Patches
(Patch Change)
When the Play screen is showing in the display, you can
switch patches using the PATCH/VALUE dial or DIRECT
PATCH [1]–[4] (p. 27).
fig.02-040
* If you want to set a limit to the number of patches that can be
selected with the PATCH/VALUE dial, change the system
function settings (p. 65).
* Settings currently being edited are cleared when you switch
patches. If you want to save the setting changes you’ve made,
use the Write procedure (p. 25).
About the Display Indication
The following information appears in the Play screen.
fig.02-050d
If the Patch Does Not Switch
On the GS-10, you cannot switch patches in any screen other
than the Play screen. Press [EXIT] to return to the Play screen
(p. 15).
U100
●Patch Name
●Input Select
●Effects
●Assign 1–8
●Master
●Noise Suppressor
●Effect Chain
U003
U002
U001
●Patch Name
●Input Select
●Effects
●Assign 1–8
●Master
●Noise Suppressor
●Effect Chain
User Patches
P200
●Patch Name
●Input Select
●Effects
●Assign 1–8
●Master
●Noise Suppressor
●Effect Chain
P103
P102
P101
●Patch Name
●Input Select
●Effects
●Assign 1–8
●Master
●Noise Suppressor
●Effect Chain
Preset Patches
User/Preset Number
Patch Name

19
Chapter 2 Creating Your Own Favorite Tones (Patches)
Section 2
Selecting the Input (INPUT SELECT)
This selects the input signal to which the effects are added.
This is also used for setting the type of device connected to
the input connector.
fig.02-051
1. Press [INPUT SELECT].
The Input Select settings screen appears.
fig.02-060d
2. Turn the PATCH/VALUE dial to change the settings.
Guitar:
You can add effects to the signals input from the
GUITAR/BASS INPUT connector (when a guitar is
connected). Signals from MIC INPUT are disregarded,
and the signals input to the GS-10 from the USB or AUX
INPUT connectors are mixed with the effect output.
fig.02-070
Bass:
You can add effects to the signals input from the
GUITAR/BASS jack (when a bass is connected). Signals
from MIC INPUT are disregarded, and the signals input
to the GS-10 from the USB or AUX INPUT connectors are
mixed with the effect output.
fig.02-080
* Depending on the type of bass guitar you are using, you may
not be able to achieve the intended effect if the input level to the
GS-10 is excessively high.
In such cases, lower the volume or tone of your bass guitar.
Microphone:
You can add effects to the signals input from the MIC
INPUT connector. Signals from GUITAR/BASS jack are
disregarded, and the signals input to the GS-10 from the
USB or AUX INPUT connectors are mixed with the effect
output.
fig.02-090
* After setting INPUT SELECT to Microphone, you can press
PARAMETER [ ] to set the mic gain (p. 20).
USB (Gtr/Mic):
You can add effects to the signals input from the USB
connector (for sounds in the guitar and vocal registers).
Signals from GUITAR/BASS and MIC INPUT are
disregarded, and the signals input to the GS-10 from the
AUX INPUT connector are mixed with the effect output.
fig.02-100
* After setting INPUT SELECT to USB (Gtr/Mic), you can
press PARAMETER [ ] to set the USB input level (p. 78).
To derive the maximum performance from the GS-10, be
sure to make the correct setting for INPUT SELECT, the
one that’s most suitable for your setup.
You may not be able to achieve the expected effect if this
is not set correctly.
1
2
D/A
OUTPUT
GUITAR
AMP OUT
PHONES
GUITAR/
BASS
MIC
INPUT
AUX
INPUT
USB
DIGITAL
OUT
L
R
A/D MULTI
EFFECTS
D/A
OUTPUT
GUITAR
AMP OUT
PHONES
GUITAR/
BASS
MIC
INPUT
AUX
INPUT
USB
DIGITAL
OUT
L
R
A/D MULTI
EFFECTS
D/A
OUTPUT
GUITAR
AMP OUT
PHONES
GUITAR/
BASS
MIC
INPUT
AUX
INPUT
USB
DIGITAL
OUT
L
R
A/D MULTI
EFFECTS
D/A
MULTI
EFFECTS
OUTPUT
GUITAR
AMP OUT
PHONES
AUX
INPUT
USB DIGITAL
OUT
L
R

20
Chapter 2 Creating Your Own Favorite Tones (Patches)
USB (Bass):
You can add effects to the signals input from the USB
connector (for sounds in the bass and similar registers).
Signals from GUITAR/BASS INPUT and MIC INPUT
are disregarded, and the signals input to the GS-10 from
the AUX INPUT connector are mixed with the effect
output.
fig.02-110
* After setting INPUT SELECT to USB (Bass), you can press
PARAMETER [ ] to set the USB input level (p. 78).
AUX:
This setting is used when selecting the input signal from
the AUX INPUT connector. Signals input from the
GUITAR/BASS INPUT and MIC INPUT are
disregarded, and the signals input to the GS-10 via USB
are mixed with the effect output.
fig.02-120
Setting the Mic Input Level
(MIC GAIN)
This sets the mic input level when INPUT SELECT is set to
Microphone.
* The mic gain setting is a global setting used by all patches.
1. Press PARAMETER [ ].
The MIC GAIN settings screen appears in the display.
fig.02-130d
2. Adjust the gain by turning the PATCH/VALUE dial
while picking up sounds with the mic.
Adjust the level so that the level meter does not fluctuate
beyond the maximum allowable level.
fig.02-140d
* Set the volume for the sound being miked (acoustic guitar,
vocals, etc.) to the level to be used in performance.
* Setting the mic gain too high may result in oscillation.
3. Press [EXIT] to return to the Play screen.
D/A
MULTI
EFFECTS
OUTPUT
GUITAR
AMP OUT
PHONES
AUX
INPUT
USB DIGITAL
OUT
L
R
D/A
OUTPUT
GUITAR
AMP OUT
PHONES
GUITAR/
BASS
MIC
INPUT
AUX
INPUT
USB
DIGITAL
OUT
L
R
A/D MULTI
EFFECTS