Valeton GP-100 User manual

USER'S MANUAL
ForFirmwareV1.5

TABLE OF CONTENTS
WELCOME
ATTENTION
OVERVIEW
PANEL INTRODUCTION
Top Panel
Rear Panel
GETTING STARTED
Play Mode
Edit Mode
Navigating Patches
Using The Tuner
Looper Function
Drum Machine
EXP Pedal
Edit
Change Eect Module Position
Stomp Mode
Save Mode
GLOBAL
Input Settings
Tap Tempo Mode
EXP Settings
Calibrate
USB Audio
Footswitch Mode
Language
Factory Reset
About
SOFTWARE
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SUGGESTED SETUPS
Using with your instrument
and amp
Connecting to your amp's
RETURN
Connecting your mixer,
interface, headphones, and
other equipment
Connecting to your computer
as an audio interface
Using the AUX IN line
EFFECT LIST
PRE
DST
AMP
NR
CAB
EQ
MOD
DELAY
REVERB
DRUM RHYTHM LIST
TROUBLESHOOTING
SPECIFICATION
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WELCOME
Thank you for purchasing a VALETON product.
Please read this manual carefully to get the most out of your GP-100.
Please keep this manual for future reference.
Handling
Connecting the power and input/output jacks
·Do not get the unit wet. If liquid is spilled on the unit, shut it o immediately.
·Do not block any of the ventilation openings.
Keep away from heat sources.
·Disconnect the unit during storms to prevent damage.
·Operation of this unit within significant electromagnetic fields should be avoided.
Always turn OFF the power to the unit and all other equipment before connecting or disconnecting
any cables. Also make sure to disconnect all connection cables and the AC adapter before moving
the unit.
Cleaning
Clean only with a dry cloth.
Alterations
·Do not open the unit.
·Do not attempt to service the unit yourself.
·Opening the chassis for any reason will void the manufacturer’s warranty.
AC Adapter Operation
Always use a DC9V center negative 500mA AC adapter. Use of an adapter other than that specified
could damage the unit or cause malfunction and pose a safety hazard. Always connect the AC
adapter to an AC outlet that supplies the rated voltage required by the adapter.
UNPLUG THE UNIT DURING LIGHTNING STORMS OR WHEN UNUSED FOR LONG PERIODS OF TIME.
Malfunction
If the unit should malfunction, disconnect the AC adapter and turn the power OFF immediately.
Then, disconnect all other connected cables.
Prepare information including the model name, serial number, specific symptoms related to the
malfunction, your name, address and telephone number and contact the store where you bought
the unit, or contact VALETON support ([e-mail]) .
Thank you for choosing a VALETON product!
ATTENTION
1

OVERVIEW
2
The GP-100 is a compact, high performance guitar multi-eects processor. It oers a potent eects
processing platform and complete feature set, so you can improve your skill and experiment with
dierent guitar eects, all with one simple-to-use, portable device.
The GP-100 has 150 eects to choose from and allows you to run 9 eects simultaneously. It
provides an Expression Pedal which can be assigned to the eect you want to control for real-time
eect changes or master volume. The 99 included factory presets let you jump right in, and 99 user
presets allow you to store all your favorite eects.
The built-in tuner gets your guitar in tune. The built-in drum machine and aux input jack set you up
to play along with a drum loop, metronome, or your favorite music.
Whether you're a beginner or an old guitar freak, the GP-100’s got it all to let you have at it!

PANEL INTRODUCTION
1. LED Display
This display shows GP-100’s the patch
numbers, patch name, and other operation
information.
2. PARA knob (with enter button)
Turning or pressing this knob allows you to
change menus and adjust parameters.
3. GLOBAL button
Press this button to enter the global setting
menu, where you can edit the global
parameters of the GP-100.
4. DRUM button
Press this button to play the drum. Hold this
button to enter the Drum Machine Edit menu,
where you can edit the drum parameters
(style, rhythm, and volume). In the Drum
Machine Edit menu, press the DRUM button or
the PARA knob to turn the drum machine on /
o.
5. EDIT button
In any menu, press this button to enter the
Edit Settings menu.
6. SAVE button
Use this button to store, rename, and copy the
preset. Whenever a preset is modified, the
LCD display will show a “*” symbol to indicate
that the parameter has been changed.
Confirm to save the changed parameter.
7. EXIT button
In any menu, press this button to return to the
main interface.
8. Quick Access Knobs
Use to adjust parameters on the lower part of
the screen. Each knob will vary in function
according to the parameter on the display.
9. Expression Pedal
Use to control the parameter of one or several
eects, including output volume.
10. Footswitch
These footswitches are used for controlling
the tuner, preset scrolling, start/stop/record
phrases, and other functions. Their function
will depend on the footswitch mode you are
currently using.
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3 4
75 6
8
10
9
8 8
10
3
Top Panel

11. INPUT Jack
1/4” mono audio jack, for connecting guitar.
12. OUTPUT L/OUTPUT R Jack
1/4” TRS output interfaces can be configured
for mono or stereo operation. Use them to
connect to a single guitar speaker, a pair of
stereo guitar speakers, or directly to the input
of a PA or recording device.
13. AUX IN
1/8” TRS input for connecting external devices
(phone, MP3 player) for practice and
jamming.
14. PHONES
1/8” TRS output for connecting headphones.
15. USB
USB 2.0 Type-B connects to your computer
for use with GP-100 software, or as a USB
audio interface.
16. Power Supply Connection
Power supply input (9V DC center negative) .
11 12 13 14 15 16 12
GETTING STARTED
The GP-100 has two operation modes: Play Mode and Edit Mode.
GP-100 will be in play mode when first powered on. The LED screen shows the patch number (from
P01 to F99), master volume, patch volume, BPM, patch name and more. Play Mode allows you to
navigate presets using the PARA knob or footswitches.
A
B
C
D E F
GI
H
Play Mode
A. Patch No.
B. Patch name
C. Foot switch mode
D. Master volume
E. Patch BPM
F. Patch volume
G. EXP pedal state
H. Patch state
I. DRUM state
4
Rear View
PANEL INTRODUCTION

NOTE:
1. Eect settings changed in Edit Mode will need to be stored to a patch.
2. The exceptions are the Master Level and drum machine settings, which are global settings and are not
stored to patch.
3. Whenever you change the eect settings of a stored preset, the “*” dot at the top of the screen lights up,
indicating the eect setting has been changed from the previously stored value in the patch.
4. See “Editing Patch” for more information on storing a patch.
GETTING STARTED
Push PARA in the main interface or EDIT in any interface to enter EDIT mode. In this mode, you can
switch eect types, edit eect parameters, and change the order of eect modules.
The GP-100 has two patch banks: the User patch bank, which appears in the LED display as P01 to
P99, and the Factory patch bank, which appears in the LED display as F01 to F99. From Play
Mode, step on the [+]/[-] footswitches or turn the PARA knob to change presets .
Press and hold both footswitches at any time to enter the tuner
mode.
In tuner mode, the LED screen will display the tuning interface.
When you pluck a string, the note will appear in the center. Left of
center is flat, and right of center is sharp.
As you tune your instrument towards the middle, the color of the
scale will change from red (out of tune) to yellow (near pitch) to
green (in tune).
Quick access knob 3 adjusts the pitch calibration (REF PITCH), ranging from 435Hz to 445Hz.
Standard pitch is set at 440Hz. Quick access knob 1 lets you select the tuner mode from Bypass (for
dry signal through), Thru (for eect signal through) or Mute (for silent tuning).You can exit the tuner
either by pressing any footswitch or by pressing the EXIT button.
Edit Mode
Navigating Patches
Using The TUNER
5
NOTE:
If you continue to press both [+]/[-] foot switches for more than 2 seconds, the looper becomes active.

GETTING STARTED
Press the “DRUM” button in any interface to turn on the drum.
After the drum is turned on, a symbol will be displayed on the
right side of the main interface to show the drum machine is
active.
Press and hold the DRUM button to enter the drum menu.
Drum Machine
Quick access knob 1 adjusts the DRUM style. Quick access
knob 2 adjusts the DRUM BPM from 40-250. Quick access
knob 3 adjusts the DRUM volume from 0-99. Turn the PARA
knob to switch the DRUM genre. Press the PARA button to
play/stop the drum.
LOOPER Function
In the play mode, simultaneously press the [+]/[-]
footswitches until the LOOPER menu appears.
The progress bar at the top will be shown in red during
recording and overdubbing. It will be shown in blue in play
mode.
Quick access knob 1 adjusts the loop recording level from 0-99
Quick access knob 2 selects between setting the loop before
(Pre) or after (Post) your eects chain
NOTE:
You can exit the LOOPER by pressing the EXIT button. The function of the footswitches in this interface，
footswitch[-]tap function is record / playi/ overdub，footswitch [+] tap function is stop，hold to clear and
hold footsiwtch[-] [+] to exit.
6
You can use the built in expression pedal to control various
GP-100 parameters.
Some GP-100 preset patches have been set up to use the built
in expression pedal. These can be used without any further
EXP Pedal
NOTE
The built-in expression pedal also functions when it is turned o. It controls the output volume or input
volume of the GP-100, depending on the where it is positioned in the eect chain.
setup. Refer to the expression pedal setting section to set the expression pedal.
To turn the built in expression pedal on, press the pedal all the way forward so it clicks. When the
built-in expression pedal is on, an icon will show up on the Main Display screen to indicate it is on:
In Pre mode, the looper will record mono audio without any eects, up to 90 seconds.
In Post mode, the looper will record stereo audio with eects, up to 45 seconds.
Quick access knob 3 adjusts the loop playback volume from 0-99.

EDIT
Turn the PARA knob or tap the footswitch to switch the patch.
Press the PARA button or EDIT button to enter the EDIT menu.
This menu is made of ten icon squares representing GP-100’s
nine eects modules.
The default signal chain is ordered like this:
PRE (Pre-eects) - DST (Overdrive/Distortion) - AMP (Amp
simulator) - NR (Noise reducer) - CAB (Cabinet simulator) - EQ
(Equalization) - MOD (Modulation) - DLY (Delay) - RVB
(Reverb).
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You can arrange the eect modules however you want.
When you open any eect module, the corresponding icon lights up to indicate the current eect
module is selected.
In the EDIT Menu, turn the PARA knob to select the eect module you want to edit. The editable
parameters of the currently selected eect module are displayed at the bottom of the screen;
dierent eect modules have dierent parameters. You can use the three Quick adjust knobs to
adjust the parameters located directly above the knobs. A page number will appear at the top right
of the screen.
Some eects have several parameters, but only three
parameters appear per page. Press the PARA knob button to
turn the page to view the other available parameters.
Press and hold the PARA button in the EDIT Menu to change
the position of the eect module.
Change Eect Module Position
·Turn the PARA button to select the eect module you want to move
·Turn the Quick adjust knob 1 to control the selected module on/o
·Turn Quick adjust knob 3 to move the selected module.
·Press the PARA button to return to the EDIT menu.
NOTE
Remember that turning the modules on/o and adjusting parameters will change the current patch. If you
switch patches or turn GP-100 o before saving your changes, the changes will be lost. Make sure to press
the SAVE button to save your settings.
Reminder: In some extreme cases the signal processor may become overloaded and display a “System
Overload” caution.

EDIT
8
Stomp Mode
Select the footswitch mode in the GLOBAL menu to select
STOMP mode.
After selecting the STOMP mode, the function of the foot
switch [-]/[+] on the main interface will be changed to the
information of the current controllable module. Each
footswitch can only control 1-3 module switches.
In STOMP mode, press the PARA button or EDIT button to enter
the EDIT menu.
In STOMP mode, the tone editing operation is the same as in
PATCH mode. Only one foot switch control module selection
function is added:
There are two kinds of graphics “▲” “△” below the module
under this interface to indicate the module controlled by the
current foot switch [-]/[+]. Turn Quick adjust knob 2 to select
the module to be controlled by the footswitch. FT 1 refers to the
module controlled by the [-] foot switch. FT 2 refers to the
module controlled by the [+] foot switch. Selecting OFF means
it is not controlled.
NOTE
Remember that turning the modules on/o and adjusting parameters will change the current patch. If you
switch patches or turn GP-100 o before saving your changes, the changes will be lost. Make sure to press
the SAVE button to save your settings.
Reminder: In some extreme cases the signal processor may become overloaded and display a “System
Overload” caution.

GLOBAL
9
In the SAVE menu, you can save the changes you make to your
eects parameters, control information, and other editable
targets.
It is very important to save the changes you make to your tone
and control settings!
Turn the PARA knob to select the patch you want to save.
Save Mode
·Quick access knob 1 changes the characters. There are four types of characters: numbers, capital
letters, lowercase letters, and symbols (includes space).
·Quick access knob 2 changes the position of the cursor.
·Quick access knob 3 deletes left and right characters.
·Press the PARA button or SAVE button to confirm the save.
·Press the EXIT button to exit the SAVE menu.
EDIT
Use the GLOBAL menu to set GP-100’s global functions,
including input level, EXP pedal settings, language, and
footswitch mode. You can also return to factory settings from
this menu.
Global settings will aect GP-100’s overall working status.
These will override any other settings made to your patches.
Any changes made in Global settings will be automatically
saved and immediately operational.
In the main menu, press GLOBAL to enter the global settings
menu. The screen will look like this:
Turn the PARA knob to select settings in the GLOBAL menu. You can use the three Quick adjust
knobs to adjust the parameters directly above the knobs. A page number will appear at the top right
of the screen. Press the PARA knob button to turn the page to view the other available parameters.
Set the global input levels and modes in the Input Settings
menu. Adjust the optimal Input Level for the instrument or
other sound source you’re using. Adjustable range is from -
20dB to +20dB. Default is set to 0dB.
Input Setting
Tap Tempo Mode
Tap Tempo Mode

GLOBAL
10
From this menu, you can control the settings of or calibrate
your built-in expression pedal.
EXP Setting
There are four options within this menu: Target, Expression
Range, Volume Range, and Calibrate.
·Target
Under the Target option, you can set the pedal’s control
target. You can set up a maximum of four eects parameters
for the built-in expression pedal to control.
In the selection panel, Block X (X standing for 1-3 controllable
targets) represents the eects module in play. FX X displays
the actual eect name, and PARA X shows the eect’s
controllable parameter.
Use Quick access knob 1 to select the module placement. Use Quick access knob 3 to select the
eects parameter. Press the PARA button to flip through the panel. You can also turn the expression
pedal o by selecting OFF in the settings panel.
In the selection panel, MIN X (X standing for 1-3 controllable
targets) represents the lowest range value. This is the value
the pedal will have when pushed all the way up. MAX X
represents the highest range value, when the pedal is pushed
all the way down. The MIN and MAX range is 0-100, and the
MIN value can be greater than the MAX value.
·EXP Range
Under the EXP Range option, you can set the expression pedal
expression range and sweep curve. There are four adjustable
targets to change these settings.
Tap Tempo Mode
Tap Tempo Mode
PRE MOD DLY
CLOSE CLOSE CLOSE
In this menu, you can set whether all patches to accept the
impact of Tap Tampo.This function ignores the Sync settings
in the stored patches, but does not aect the stored patches.
The Sync function of the PRE, MOD and DLY modules in all the
patches can be aected by Tap Tempo.
After the synchronization is enabled, when you turn on Tap
Tempo, the Sync of the corresponding module will be opened.
You can control the time/speed value of the corresponding
module by Tap Tempo in any patch.

GLOBAL
11
·VOL Range
When the built in expression pedal is o, it continues to work
as a volume pedal. Under the VOL Range option, you can set
the volume pedal range and sweep curve. Just like in the EXP
Range section, MIN and MAX represent the lowest/highest
volume range value respectively.
The MIN and MAX range is 0-100, and the MIN value can be
greater than the MAX value.
In this menu you can set the position of the volume pedal in the eects chain. PRE means that the
volume pedal is at the front of the eects chain (before the input level), and POST means that the
volume pedal is at the end of the eects chain (before the master volume).
The Calibrate option helps you calibrate your expression
pedal. It is important to calibrate the expression pedal if you
find the sweep has very little or too much change in the eect
you’ve set.
Press the PARA button to enter the Calibrate menu.
Calibrate
Bring the pedal all the way up (back) and press the PARA
button to select Next.
Then press the pedal all the way down (forward) and press the
PARA button to select Next.

GLOBAL
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Calibrate
Then, press the pedal toe down strongly and press the PARA
button to select Next.
If the pedal is successfully calibrated, the following prompt
will be displayed. Press the PARA button to confirm the
calibration and return to the previous menu.
If pedal calibration fails, press the the PARA button to re-
calibrate.
Use this menu to set up USB audio settings when using GP-
100 as a USB audio interface. The Rec Mode options allow you
to select USB recording input sources on left (L) and right (R)
input channels. The selections for these are the same: dry
signal (Dry) and wet signal (Eect). When recording, adjust
the optimal Rec Level according to the instrument or other
devices you're using.
Rec Level: range: -20dB to +20dB, default: 0dB
USB Audio

GLOBAL
13
This menu is used to set the GP-100 FOOTSWITCH mode.
Turn Quick adjust knob 2 to select the footswitch mode. You
can select footswitch mode as PATCH mode or STOMP mode.
Footswitch Mode
Language
This menu is used to set the GP-100 language.
Press the PARA button to enter the language settings menu.
Turn the PARA knob button to select the system languag and
press the PARA button to confirm the selection.
Press the PARA button again or press the EXIT button to
return to the previous menu.
NOTE
In both footswitch modes, press and hold footswitch [-] to turn
on/o Tap Tempo function, press and hold footswitch [+] to
switch footswitch mode.

14
GLOBAL
Factory Reset
Use this menu to perform a factory reset. Remember,
resetting the GP-100 will delete all of your saved changes
and personal settings. Once it is executed, it cannot be
undone, so please back up your settings before performing
a factory reset.
Press the PARA button to enter the factory reset menu.
Turn thePARA knob to select OK/Cancel to confirm or cancel
the factory reset. Press the PARA button to confirm select.
Selecting OK will initiate the factory reset. Selecting Cancel
will return you to the previous menu.
After starting the factory reset, this screen will appear
showing that the reset is in progress. Do not disconnect the
power supply while the reset is in progress. Disconnecting the
power supply may cause your GP-100 to malfunction.
When the factory reset is complete, this message will appear.
Press the PARA button to return to the main menu.
About
The About page will show you information about GP-100’s
firmware.
1.5

SOFTWARE
Connect GP-100 to your computer and access the free software to manage your GP-100 device, adjust tonal
settings, transfer files, update firmware, restore settings, and upload third party IR files. GP-100 software is
compatible with Windows and macOS platforms. Log on to www.valeton.net/support to download the free
software.
15
Suggested Setups
Using with your instrument and amp
Here are some common setups to get the most out of GP-100.
Plug your instrument into the GP-100 instrument INPUT jack, and run a cable (or two) from the OUTPUT(s) to
your amplifier(s). If you have one amp, run the cable from the left output.
For best results, turn o the AMP and CAB modules on GP-100.

Suggested Setups
Connecting to your amp's RETURN
Connect the outputs to your amp’s FX Loop Return input. If you have one amp, run the cable from the left output.
For best results, turn o the CAB module on GP-100.
Connecting your mixer, interface, headphones, and other equipment
Connect GP-100’s outputs to your mixer or audio interface’s corresponding inputs. If you want to send a mono
signal out, use GP-100’s left output channel. To prevent damage to your equipment, make sure the mixer or
interface channel’s volume is muted before making ANY connections. Turn theGP-100 output volume all the
way down before connecting headphones to prevent harm to your ears. GP-100’s headphones out comes with
stereo sound.
For best results with headphones, turn on GP-100’s AMP and CAB modules.
16

Suggested Setups
Using the AUX IN line
Connect a male-to-male 1/8” stereo cable from your audio source (phone or MP3 player) to GP-100’s AUX IN
jack. This line will be unaected by GP-100’s internal eects. Note: if you are running a mono line out, you will
only hear a mono version of your AUX source.
Connecting to your computer as an audio interface
Connect a USB cable (not included) from GP-100 to your computer. For PC systems, you’ll need to set up the
driver. GP-100 is plug and play for macOS. Run line out cables to your monitors, or use headphones.
17

EFFECT LIST
PRE
FX Title
Description
Parameters & Ranges
Good For
COMP
Based on the legendary Ross™
Compressor. This is the originator of
the guitar compression eect.
It brings the guitar compression eect
to the public and becomes an
important element in the future.
It has a very natural and mellow
compression eect.
Sustain (0~99) Controls the compression amount
Output (0~99) Controls the eect output volume
Vintage
COMP4
®
Based on the Keeley C4 4-knob
compressor*. A recording studio -
level compression eect. Clear sense
of hierarchy, the right amount of high
frequency makes your guitar sound
brighter.
Sustain (0~99) Controls the compression amount
Attack (0~99) Controls how soon the compressor
starts to process the signal
Output (0~99) Controls the eect output volume
Clip (0~99) Controls the input sensivity
Modern
Boost
®
Based on famous Xotic EP Booster*
pedal. Provides +20DB of pure
stimulation lift, strong low frequency,
bright high frequency, making clear
sound more pleasant.
Gain(0~99) Controls the eect gain
Bright(O/On) Switches extra brightness on/o
Modern
AC Sim
Acoustic guitar simulator designed
for guitars. Its prototype comes from
a classic acoustic guitar analog
stompbox.
Body(0~99) Controls the body resonance
Top(0~99) Controls the upper harmonics
VOL(0~99) Controls the eect output
Mode(STD, Jumbo, ENH, Piezo) Switches from 4 modes:
STD: Simulates a standard acoustic guitar
Jumbo: Simulates a jumbo acoustic guitar
ENH: Simulates an acoustic guitar with enhanced attack
Piezo: Simulates the sound of a piezo pickup
Modern
T-WAH
Control the wah sound by playing
intensity. A wide range d envelope
filter (a.k.a. touch wah) designed for
guitarists and bassists that is touch-
sensitive and flexible.
Sense (0~99) Controls the sensitivity
Range (0~99) Contols the filter center frequency range
Q (0~99) Controls the filter Q
Mix (0~99) Controls the wet/dry signal ratio
Mode (Guitar/Bass) Switches from guitar/bass modes
Funk
Rock
A-WAH
Set the rate to make the wah pedal
work regularly. Providing a variable
auto wah eect for both guitars and
basses.
Depth (0~99) Controls the eect depth
Rate (0.1~10Hz) Controls the eect speed
VOL(0~99) Controls the eect output
Low(0~99) Controls the filter low frequency range
Q (0~99) Controls the filter Q
High (0~99) Controls the filter high frequency range
Sync (O/On) Switches Tap Tempo sync on/o
Funk
Rock
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*The manufacturers and product names mentioned above are trademarks or registered trademarks of their respective owners.
The trademarks were used merely to identify the sound character of the products.