Zoom GFX-8 User manual

Operation Manual
Safety and Usage Precautions••••••••••••••••••••••••••••••••••••••••••••••••••••• 2
Introduction •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 3
Naming of Parts ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 4
Top Panel ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 4
Rear Panel •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 4
Terms Used in This Manual ••••••••••••••••••••••••••••••••••••••••••••••••••••••• 5
Getting Connected••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 6
Connection Example (1) •••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 6
Connection Example (2) •••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 6
Connection Example (3) ••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 6
Preparations •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 7
Power Up ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 7
Setting up the Amp Simulator •••••••••••••••••••••••••••••••••••••••••••••••••••• 7
Quick Guide (Trying Out the Unit) •••••••••••••••••••••••••••••••••••••••••••••• 8
Listening to Patches (Play Mode Operation) •••••••••••••••••••••••••••• 10
Panel Indication in Play Mode •••••••••••••••••••••••••••••••••••••••••••••••••• 10
Selecting a Patch •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 10
Using the Easy Edit Function ••••••••••••••••••••••••••••••••••••••••••••••••••• 11
Using the Bypass (Mute)/Tuner Function •••••••••••••••••••••••••••••••••••• 12
Adjusting the Reference Pitch of the Tuner ••••••••••••••••••••••••••••••••• 13
Switching Modules On and Off During Play (Manual Mode) ••••••••••• 13
Changing the Sound of a Patch (Edit Mode) •••••••••••••••••••••••••••• 14
Basic Edit Mode Steps ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 14
Edit Mode Shortcut (1) ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 16
Edit Mode Shortcut (2) ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 16
Creating Custom Distortion ••••••••••••••••••••••••••••••••••••••••••••••••••••• 17
Storing Custom Module Settings •••••••••••••••••••••••••••••••••••••••••••••• 18
Storing and Copying Patches (Store Mode Operation) •••••••••••• 18
Effects and Parameters ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 19
DRIVE Module •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 19
ZNR/EQ (Zoom Noise Reduction/Equalizer) Module ••••••••••••••••••••• 20
MOD (Modulation) Module •••••••••••••••••••••••••••••••••••••••••••••••••••••• 21
DLY/REV (Delay/Reverb) module •••••••••••••••••••••••••••••••••••••••••••••• 25
SFX Effects •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 27
TOTAL Module ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 29
Using RTM •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 30
Using the CONTROL Switch ••••••••••••••••••••••••••••••••••••••••••••••••••••• 31
Using the Jam Play Feature ••••••••••••••••••••••••••••••••••••••••••••••••••••• 32
Using the Sampler •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 34
MIDI Usage Examples ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 35
Basic MIDI Send/Receive Settings •••••••••••••••••••••••••••••••••••••••••••• 35
Switching GFX-8 Patches From an External Unit ••••••••••••••••••••••••• 35
Controlling External Devices in Conjunction With GFX-8
Patch Switching ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 37
Remote Control Using GFX-8 •••••••••••••••••••••••••••••••••••••••••••••••••• 38
Bulk Dump ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 39
Bulk Load •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 40
Supplied Software ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 40
Other Functions •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 41
All Initialize/Factory Recall ••••••••••••••••••••••••••••••••••••••••••••••••••••••• 41
Trying Out the Factory Default Patches
(Self Introduction Function) ••••••••••••••••••••••••••••••••••••••••••••••••••• 41
Adjusting the Expression Pedal ••••••••••••••••••••••••••••••••••••••••••••••••• 41
Disabling the Bypass/Mute Function ••••••••••••••••••••••••••••••••••••••••• 41
Troubleshooting ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 42
GFX-8 Specifications •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 42
MIDI Implimentation Chart••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 43
CONTENTS

Safety and Usage Precautions
USAGE AND SAFETY PRECAUTIONS
In this manual, symbols are used to highlight warnings and
cautions for you to read so that accidents can be prevented. The
meanings of these symbols are as follows:
Please observe the following safety tips and precautions to ensure
hazard-free use of the GFX-8.
•Power requirements
•The GFX-8 is powered by the supplied AC adapter .
•To prevent malfunction and safety hazards, Do not use any
other kind of AC adapter.
•When using the GFX-8 in an area with a different line
voltage, please consult your local ZOOM distributor about
acquiring a proper AC adapter.
•Environment
Avoid using your GFX-8 in environments where it will be
exposed to:
• Extreme temperature
• High humidity or moisture
• Excessive dust or sand
• Excessive vibration or shock
•Handling
Since the GFX-8 is a precision electronic device, avoid
applying excessive force to the switches and buttons. Also
take care not to drop the unit, and do not subject it to shock or
excessive pressure.
•Alterations
Never open the case of the GFX-8 or attempt to modify the
product in any way since this can result in damage to the unit.
•Connecting cables and input and output jacks
You should always turn off the power to the GFX-8 and all
other equipment before connecting or disconnecting any
cables. Also make sure to disconnect all cables and the AC
adapter before moving the GFX-8.
Usage Precautions
• Electrical interference
For safety considerations, the GFX-8 has been designed to
provide maximum protection against the emission of
electromagnetic radiation from inside the device, and protection
from external interference. However, equipment that is very
susceptible to interference or that emits powerful
electromagnetic waves should not be placed near the GFX-8, as
the possibility of interference cannot be ruled out entirely.
With any type of digital control device, the GFX-8 included,
electromagnetic interference can cause malfunctioning and can
corrupt or destroy data. Care should be taken to minimize the
risk of damage.
• Cleaning
Use a soft, dry cloth to clean the GFX-8. If necessary, slightly
moisten the cloth. Do not use abrasive cleanser, wax, or solvents
(such as paint thinner or cleaning alcohol), since these may dull
the finish or damage the surface.
Please keep this manual in a convenient place
for future reference.
Safety and Usage Precautions
2ZOOM GFX-8
Warning
This symbol indicates explanations about
extremely dangerous matters. If users
ignore this symbol and handle the device
the wrong way, serious injury or death
could result.
Caution
This symbol indicates explanations about
dangerous matters. If users ignore this
symbol and handle the device the wrong
way, bodily injury and damage to the
equipment could result.
Warning
Caution
Caution
Caution
Caution

Introduction
•Versatile array of effects
The Variable Architecture Modeling System (VAMS)
adapts the internal configuration of the unit to achieve
exactly the desired pattern. The GFX-8 provides 69
effects ranging from the sound of famous guitar
amplifiers and other vintage devices to ultra-modern
processing functions. Up to nine effects can be freely
combined for simultaneous use. Modulation effects and
delay/reverb effects allow up to two types of custom
settings to be stored in memory. Any desired setting can
be called up quickly and easily.
•Sophisticated distortion technology
Using new technology developed by Zoom, the GFX-8
can faithfully duplicate the characteristics of famous
guitar amplifiers and preamplifiers. The available
choices range from conventional overdrive to exciting
high-gain fuzz sound. In combination with the built-in
amp simulator and cabinet simulator, this lets you create
realistic distortion tailored to your music. Two types of
custom distortion are also included, letting you build
your own sound from scratch.
•"Easy Edit" feature
During a stage performance, quick editing is possible
using handy selectors and knobs on the top panel of the
unit. You can switch effects, adjust the 4-band equalizer,
control distortion gain, or fine-tune major parameters of
the delay/reverb effects. Operation is quick and intuitive,
just like using a compact effect device.
•MIDI capability
MIDI IN and OUT connectors are provided, allowing
you to hook up a MIDI sequencer or keyboard for
remote control, or to control a MIDI compatible guitar
amplifier or other device from the GFX-8. Memory data
can also be sent and received via the MIDI link.
•Supplied editing software
The GFX-8 is supplied with a CD-ROM containing
software that lets you manage and edit patch libraries on
a computer (Windows 95/98 or Macintosh). The
software also provides access to a user custom area for
detailed adjustments that are not possible on the main
unit.
•Extensive patch library
A patch is a combination of effects and parameter
settings stored in memory, with a name of up to 8
characters. The GFX-8 has room for 80 read/write
patches (4 patches x 20 banks) that can be freely
changed by the user, plus 160 preset patches (4 patches x
40 banks) that are read-only. In total, this gives access to
as many as 240 patches.
•Built-in sampler and jam play feature
The integrated phrase sampler has a recording time of up
to 25 seconds. In addition, there is a jam play feature that
lets you record a 12-second phrase and play it back in
normal, reverse, or scratch mode. Changing the playback
speed is possible without altering the pitch. This feature
comes in handy when copying phrases. The AUX input
lets you connect a stereo source such as a CD or MD
player, to combine with your session or to directly record
with the sampler.
•Designed for use on stage
The tough metal chassis of the unit will withstand use in
a demanding environment. The expression pedal and
foot switches are designed to facilitate your work on
stage. The easy-to-read 8-character display plus a 2-digit
LED panel are great for checking patch names, numbers,
and other settings at a glance. The output level can be set
to +4 dB to match professional specifications.
Thank you for selecting the ZOOM GFX-8 (hereafter simply called the "GFX-8 "). The GFX-8 is a sophisticated
digital effect processor with the following features and functions:
3
ZOOM GFX-8
Introduction
Please take the time to read this manual carefully so as to get the most out of your GFX-8 and to ensure
optimum performance and reliability. Retain this manual, the warranty card and all other documentation for
future reference.
*Windows 95 and Windows 98 are registered trademarks of Microsoft Corporation.
*Macintosh is a registered trademark of Apple Computer Inc.

Naming of Parts
4ZOOM GFX-8
Display
Top Panel
Rear Panel
GROUP/BANK indicator
DRIVE selector MOD (modulation) selector
DLY/REV (delay/reverb)
selector
PARM (parameter)
knobs 1 - 4
GAIN knob
PARM (parameter) SELECT
/ADJUST knob
PARM (parameter)
VALUE/ADJUST knob
GROUP/CUSTOM SET key
STORE key EDIT/CANCEL key
TOTAL key
MIDI key
ZNR/EQ EDIT key
DRIVE key
MOD (modulation) key
DLY/REV (delay/reverb) key
BANK UP/DOWN [MANUAL]
foot switches
Foot switches 1 - 4
expression pedal
INPUT jack
AUX IN jack
EXTERNAL DIST
(distortion) SEND jack
EXTERNAL DIST (distortion)
RETURN jack
OUTPUT R jack
OUTPUT L/MONO jack
OUTPUT PHONES
jack
OUTPUT LEVEL knob
POWER switch
POWER connector
MIDI IN connector
MIDI OUT connector
Naming of Parts
* The MIDI OUT connector can also be switched internally to serve as
MIDI THRU connector (see page 35).

Naming of Parts
Modes
The GFX-8 has five different operation modes, as listed below.
•Play mode
In this mode, patches can be selected and played. This is the
default mode of the GFX-8 that is always active when power is
turned on.
•Manual mode
In this mode, you play your instrument while manually
switching modules on and off.
•Edit mode
In this mode, the effect parameters of the currently selected
patch can be edited (changed).
•Jam play mode
In this mode, you can record a guitar phrase and play it back in
normal, reverse, or scratch style.
•Sampler mode
In this mode, you can use the sampler function to record and
play back a phrase from guitar or a source such as a CD player.
RTM (real-time modulation)
This refers to changing effect parameters in real time. For example,
you can use the expression pedal to change the mix ratio of the
reverb sound, or adjust the delay time during a song using a MIDI
sequencer.
The type and range of the parameter to be changed, as well as the
controller type (expression pedal or MIDI control change
information) can be stored separately for each patch.
5
ZOOM GFX-8
Effect module
An "effect module" in the GFX-8 works like a stand-alone compact
effect device such as a distortion or delay. In the GFX-8, you can
use the four effect modules DRIVE, EQUALIZER, MOD, and
DLY/REV as well as the ZNR (Zoom Noise Reduction) + AMP
SIM (Amp Simulator) simultaneously.
Terms Used in This Manual
This section explains some important terms that are used throughout the GFX-8 documentation.
Effects and parameters
An effect is a specific processing function in a module. The effect
modules DRIVE, MOD, and DLY/REV each have 22 effects, from
which one can be selected. The various settings of an effect that
can be freely modified by the user are called parameters. The GFX-
8 uses two kinds of parameters: effect parameters which are stored
separately for each patch and global parameters which apply to all
patches.
Patch/group/bank
Effect module combinations and effect parameter settings are
stored in memory as "patches". The GFX-8 can store a total of 240
patches. These are divided into 80 read/write patches in the user
groups (U and u) and 160 read-only patches in the preset groups
(A, b, C, d). Each group has 10 banks numbered from 0 - 9, and
each bank has 4 patches which can be selected with the foot
switches 1 - 4 on the top panel of the unit.
BANK 9
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 8
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 7
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 6
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 5
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 4
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 3
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 2
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 1
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 0
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 9
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 8
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 7
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 6
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 5
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 4
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 3
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 2
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 1
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 0
PATCH 1
PATCH 2
PATCH 3
PATCH 4
Group U
User groups
Group u
BANK 9
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 8
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 7
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 6
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 5
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 4
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 3
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 2
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 1
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 0
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 9
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 8
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 7
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 6
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 5
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 4
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 3
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 2
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 1
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 0
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 9
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 8
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 7
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 6
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 5
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 4
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 3
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 2
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 1
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 0
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 9
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 8
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 7
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 6
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 5
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 4
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 3
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 2
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 1
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK 0
PATCH 1
PATCH 2
PATCH 3
PATCH 4
Group A Group b Group C
Preset groups
Group d
DRIVE
IN
SEND
RETURN
INPUT
AMP SIMZNR EQ MOD
VOLUME
L/MONO
R
EXTERNAL DIST
SFX
DLY/REV
* When an SFX effect of the DLY/REV module is selected, the
MOD module is automatically disabled.
Signal flow in the GFX-8

Getting Connected
If your guitar amplifier is equipped with a power amplifier input
jack, you can directly connect the OUTPUT L/MONO jack of the
GFX-8 to the power amp input jack, using the GFX-8 as a guitar
preamplifier.
*When using the GFX-8 in this way, it is recommended to activate
the built-in amp simulator (see page 7).
A component with stereo line level output such as a CD player or MD
player can be connected to the AUX IN jack, using a stereo Y
cable. The signal supplied to this jack is not processed by the
effects of the GFX-8 and is sent directly to the OUTPUT jacks.
This allows you for example to listen to a CD while practicing a guitar
phrase.
*Using the sampler function of the GFX-8, it is also
possible to record the signal supplied to the AUX IN jack
(see page 34).
*When using hi-fi equipment (mixer, audio system or
similar) instead of a guitar amplifier, activating the built-in amp
simulator (see page 7) is recommended.
Getting Connected
Connection Example (1) Instrument/amplifier connection
6ZOOM GFX-8
Connection Example (2) Connection to power amp input jack of guitar amplifier
Connection Example (3) CD player/MD player connection
Guitar
R
OUTPUT
L/MONO
INPUT
AUX
IN
Playback system
CD player
OUTPUT
L/MONO
POWER AMP.INPUT
Guitar amplifier
INPUT
Guitar
Use a mono cable to
connect the guitar to the
INPUT jack.
Use a mono cable to connect the OUTPUT
L/MONO jack only (for a monaural setup) or the
OUTPUT L/MONO jack and OUTPUT R jack to
the guitar amplifier or playback system.
To monitor the sound
with a pair of
headphones, connect the
cable to the OUTPUT
PHONES jack.
When using the GFX-8 together
with a distortion device or other
effect, connect the device
between the EXT.DIST SEND
jack and EXT.DIST RETURN
jack.
* The on/off condition and signal output level of a compact effect
connected to the EXT.DIST SEND jack/EXT.DIST RETURN jack
can be stored as part of a patch (see page 20).
When using the supplied software to edit the patches
of the GFX-8 on a computer, connect the MIDI
interface of the computer to the MIDI IN/OUT jacks of
the GFX-8, using MIDI cables.
MIDI interface
Computer
Guitar
Guitar effect
AC adapter
MIDI IN
MIDI OUTPHONES
EXTERNAL
DIST
RETURN
EXTERNAL DIST
SEND
R
OUTPUT
L/MONO
INPUT
MIDI
OUT
MIDI IN
Guitar amplifier
Headphone
IN OUT

Preparations
1. Immediately after turning on the GFX-8, press the
TOTAL key.
The GFX-8 switches to the edit mode which allows you to
change various internal settings. The TOTAL key flashes red, and
the display shows "PATCHLVL".
2. Press the TOTAL key twice, so that it flashes orange.
The display indication changes to "AMP SIM".
3. Use the PARM knobs 1 - 4 to select the amp simulator
setting that matches the playback system.
While the TOTAL key is flashing orange, the PARM knobs 1 -
4 serve to set the amp simulator operation.
(1) PARM knob 1 AMP SIM
Switches amp simulator ON/OFF.
(2) PARM knob 2 AMP TYPE
Selects the amp simulator characteristics as follows (only if
parameter 1 is set to "on".
Line connection
•LC General combo type amplifier
•Lb Bright combo type amplifier
•LS Stack type amplifier
Power amplifier connection
•AC Combo type amplifier
•AS Stack type amplifier
(3) PARM knob 3 CABINET
Selects the speaker cabinet simulator type.
•oF Cabinet simulator OFF
•C1 Combo amplifier cabinet with one 12" speaker
•C2 Combo amplifier cabinet with two 12" speakers
•ST Stack amplifier with four 10" speakers
•WL Stack amplifier tower with four 10" speakers
(4) PARM knob 4 CABI DPT
Adjusts the depth of the cabinet simulator effect, in the range
from 0 - 10.
Recommended settings for various connection methods and
playback systems are as follows.
Connected to guitar amplifier input jack
Connected to power amplifier input jack of guitar
amplifier
Connected to hi-fi playback system such as mixer or
audio system
4. When the settings are complete, press the STORE key
twice.
T`he new amp simulator setting is stored. This setting is
retained also when power to the unit is turned off.
(4) PARM knob 4
(1) PARM knob 1
(2) PARM knob 2
(3) PARM knob 3
1. Verify that the AC adapter, instrument, and
amplifier/playback system are correctly connected to
the GFX-8.
Before making any connections, be sure to turn power to all
components off. Also, you should turn the volume on the
amplifier or playback system to minimum, and set the
OUTPUT LEVEL knob on the rear panel of the GFX-8 to the 12
o'clock position.
2. Turn the system on in the order GFX-8 amplifier.
3. While playing your instrument, adjust the volume
control on the amplifier, the level control of the
instrument, and the OUTPUT LEVEL knob of the
GFX-8 to a suitable position.
This section explains the steps you should take before playing sound through the GFX-8.
7
ZOOM GFX-8
Power Up
Setting up the Amp Simulator
Preparations
The GFX-8 incorporates an amp simulator that can duplicate the electrical characteristics and cabinet sound of various
guitar amplifiers. Before starting to use the GFX- 8, we recommend that you set up the amp simulator so that it matches the
connection type of the playback system or guitar amplifier. This will assure that you get optimum results from the GFX-8.

Quick Guide (Trying Out the Unit)
8ZOOM GFX-8
In play mode, the name of the currently selected patch is shown on the display.
The group and bank number of the patch can be checked on the GROUP/BANK indicator.
Patch name Group Bank number
• For details on patch/bank/group
switching, refer to p. 10.
* If you press the foot switch whose LED is lit, the GFX- 8
goes into the bypass condition.
To switch the patch within the same bank, press one of the foot switches 1 - 4
whose LED is not lit.
To switch to a patch from another bank
number or group, use the BANK
UP/DOWN foot switches and the foot
switches 1 - 4 to select the bank number
and group.
RTM (real-time modulation) refers to changing an effect with the expression pedal in
real time.
Rock the expression pedal back and
forth.
• For information on effects that allow RTM control, see p. 30.
• For more information on the use of the expression pedal, see p. 41.
The effect changes as the expression
pedal is moved. The parameter that is
controlled can be programmed for each
patch. Try out this function to see which
parameter changes for the stored patches.
The expression pedal incorporates a
switch that operates when the pedal is
pushed firmly down. The switch turns the
module for which RTM control is possible
on and off.
Push the expression pedal fully down.
Selecting the patch/bank number/group
To alter the effect with
RTM
Move back and forth Push fully down
Quick Guide (Trying Out the Unit)
The Quick Guide explains the basic steps for using the GFX-8 in play mode. This lets you use the unit right away, to check out
what it can do.

Quick Guide (Trying Out the Unit)
9
ZOOM GFX-8
• For information on using the amp
simulator, see p. 7.
• For information on using the built-in tuner,
see p. 12.
• For information on record/playback of
phrases (sampler), see p. 34.
• For information on special playback of
recorded phrases (jam play), see p. 32.
Adjusts the ultra-high
frequency range.
Adjusts the high
frequency range.
Adjusts the medium
frequency range.
Adjusts the low
frequency range.
Turn the selector to choose the desired effect in the respective
module (DRIVE, MOD, DLY/REV).
Switches the respective module (DRIVE, MOD, DLY/REV)
ON and OFF and switches the group for selectable effects.
* During adjustment, the key for that module flashes.
* The parameter that can be adjusted differs for each patch.
The steps listed below will result in a change of the patch sound quality and effect intensity.
To adjust the patch sound quality,
operate PARM knobs 1 - 4.
To change the effect, use the DRIVE,
MOD, DLY/REV selectors and keys.
To change the effect intensity, operate the
GAIN, PARM SELECT, or PARM VALUE knob.
To store an edited patch, press the STORE
key twice.
• For more information on easy edit, see p. 11.
• For more information on full edit, see p. 14.
Adjusts a major parameter
of the DRIVE module.
Adjusts a major parameter
of the DLY/REV module.
Adjusts a major parameter
of the MOD module.
If required, change the store target with the BANK
UP/DOWN foot switches and foot switches 1 - 4
before pressing the STORE key twice. Note that only
patches in a user group can be selected as store
targets.
If you press the CANCEL key before pressing the
STORE key twice, the store procedure is aborted
and the unit returns to the play mode.
To select other effects or adjust the effect intensity, use
the easy edit function.
3
Other useful functions
5
To store an adjusted
patch
4
• For more information on storing patches,
see p. 18.
Quick Guide (Trying Out the Unit)

Listening to Patches (Play Mode Operation)
In play mode, the following information is shown on the panel.
Selecting and playing patches stored in the memory of the GFX-8 is called "play mode". The GFX-8 is always in this mode
immediately after being turned on. This section describes how to use the functions available in this mode.
Listening to Patches (Play Mode Operation)
Panel Indication in Play Mode
Selecting a Patch
10 ZOOM GFX-8
1. To switch patches in play mode, press a foot switch 1
- 4 whose LED is not lit.
In play mode, foot switches 1 - 4 serve to select a patch from the
same group/bank. The LED of the currently selected foot
switch is lit.
2 To select a patch from a different group/bank, press
the BANK UP or DOWN foot switch to switch the
group/patch, and then use the foot switches 1 - 4 to
select the new patch.
For example, when the BANK UP foot switch is pressed
repeatedly, the group/bank number changes as follows.
The patch is not switched as long as you only switch the
bank/group (changed section of GROUP/BANK indicator
flashes). It is switched only after you press one of the foot
switches 1 - 4 (the flashing of the GROUP/BANK indicator
stops).
If desired, you can limit the action of the BANK UP/DOWN
foot switches to select only user group banks, or only
preset group banks. To do this, press the GROUP key.
With each push of this key, the selectable groups are
cycled as follows.
Both
groups
Both
groups
User group
only
Preset group
only
HINTHINT
User group
Preset group
(5) The foot switch LED
of the currently
selected patch
lights up.
(7) When the LED is red, the effect
is from group A, and when it is
green, it is from group B.
When the LED is out, the effect
is off.
(6) Lights up in red if the EQ module
in the patch is ON.
U and u are user groups,
A - d are preset groups.
(3) Bank number (0 - 9)
(2) Group (U, u, A, b, C, d)
(4) When a dot (.) is shown here, the user group/preset
group patches can be selected continuously.
(1) Patch name

Listening to Patches (Play Mode Operation)
1. To switch the effect used in the DRIVE, MOD, or
DLY/REV module, operate the selector and key for the
respective module.
When the effect is switched, the name of the new effect is shown on
the display for about 2 seconds. The EDITED mark (.) in the
GROUP/BANK indicator lights up. This indicates that an effect
parameter of this patch has been edited. The mark disappears when the
setting is changed back to the original setting.
While only the effect group was switched, the previous
effect is still active. The change does not occur until the
selector for the respective module is operated. Therefore
the selector position and the actual effect may differ
during this interval.
2. To adjust a major parameter of each module, operate
the following knobs.
When one of the above knobs is moved, the display shows the
parameter name and the GROUP/BANK indicator shows the
parameter value for about 2 seconds.
Which parameter is assigned to the GAIN knob, PARM
SELECT/ADJUST knob, and PARM VALUE/ADJUST knob
depends on which effect is selected for that module (see page 19 - 29).
•Trying to change effects or parameters which are set to
OFF in the current module has no effect. In this case,
the indication "OFF" is shown on the display.
•All changes made with the easy edit function are
temporary. Settings revert to the original condition when
the patch is switched. When wishing to keep the
changes, you must store the patch (see page 18).
Parameter name Setting value
[GAIN knob]
Adjusts a major parameter of the DRIVE module. In
almost all patches, this is the GAIN parameter that
determines the distortion intensity.
[PARM SELECT/ADJUST knob]
Adjusts a major parameter of the MOD
module.
[PARM VALUE/ADJUST knob]
Adjusts a major parameter of the
DLY/REV module.
PRESENCE:
Adjusts boost/cut in the ultra-high frequency range.
[PARM knobs 1 - 4]
Adjust the following EQ module parameters.
TREBLE:
Adjusts boost/cut in the high frequency range.
MIDDLE:
Adjusts boost/cut in the medium
frequency range.
BASS:
Adjusts boost/cut in the low
frequency range.
[EQ]
NOTE
EDITED mark (.)
Select DRIVE module effect.
Select MOD module effect.
Select DLY/REV module
effect.
Respective module is OFF.
Module is ON and effect from group A
(upper labels) is selected.
Key out or slowly flashing red
Key lit/flashing red
Module is ON and effect from group B
(lower labels) is selected.
Key lit/flashing green
Switches the respective module (DRIVE, MOD,
DLY/REV) ON and OFF and switches the group
for selectable effects. With each push of the key,
the unit cycles through the following three states.
NOTE
To edit patches of the GFX-8, the user normally will activate the edit mode, select the desired parameter, and change the setting.
However, it is also possible to switch effects in modules and change major effect parameters in play mode. This is called the easy
edit function.
Using the Easy Edit Function
11
ZOOM GFX-8

1. To set the GFX-8 to the bypass (mute) condition,
press and immediately release the foot switch 1 - 4
that has selected the currently active patch (the foot
switch whose LED is lit).
In play mode, when you quickly press the foot switch whose LED
is lit, the GFX-8 switches to the bypass condition. The foot
switch LED now flashes and the indication "BYPASS" is
shown on the display.
If you press a foot switch with lit LED for longer than 1
second and then release it, the GFX-8 switches to the mute
condition. The foot switch LED now flashes and the indication
"MUTE" is shown on the display.
2. Play the open string you want to tune, and watch the
GROUP/BANK indicator. The GFX-8 automatically
detects the pitch and the GROUP/BANK indicator
shows the note which is closest to the current pitch.
For tuning, always play a single note. If you play a chord,
the pitch will not be detected correctly.
3. When the GROUP/BANK indicator shows the desired
note, perform fine tuning while watching the display.
4. Tune the other strings in the same way.
5. When tuning is completed, press the foot switch
whose LED is flashing once more.
The GFX-8 returns to the play mode.
If desired, you can change the setting of the unit so that
pressing the foot switch whose LED is lit will not activate
the bypass/mute condition. For details, please refer to
page 41.
NOTE
Pitch is low
Pitch is high
Pitch is correct
NOTE
Release after more than 1 second
Lit Flashes
Release immediately
Lit Flashes
The GFX-8 incorporates an auto-chromatic tuner for guitars. To use the tuner function, the built-in effects must be bypassed
(temporarily turned off) or muted (original sound and effect sound turned off).
Using the Bypass (Mute)/Tuner Function
12 ZOOM GFX-8
Listening to Patches (Play Mode Operation)

Listening to Patches (Play Mode Operation)
1. In play mode, select a patch.
2. Press the BANK DOWN foot switch and hold it down
for at least 1 second.
The GFX-8 switches to the manual mode. The display shows
"MANUAL".
3. Operate foot switches 1 - 4.
In manual mode, foot switches 1 - 4 have the following
functions.
The parameter to be controlled by foot switch 4
(CONTROL switch) is set using the TOTAL module (see
page 29).
4. To return to the play mode, press the BANK DOWN
foot switch once more.
NOTE
Hold down for
at least 1 second
1. In play mode, press the foot switch 1 - 4 whose LED is
lit, to set the GFX-8 to the bypass/mute condition.
2. Rotate the DLY/REV (PARM VALUE) knob to adjust
the reference pitch. When this knob is operated, the
current reference pitch is shown on the display. The
initial setting is "440" (center A = 440 Hz).
The available setting range is "435" (center A = 435 Hz) - "445"
(center A = 445 Hz) in 1-Hz steps.
3. When tuning is completed, once more press the foot
switch whose LED is flashing.
The GFX-8 returns to the play mode.
When the GFX-8 is turned off and on again, the reference
pitch will be reset to "440".
NOTE
Reference pitch value
The condition where foot switches 1 - 4 can be used to switch the modules in a patch ON and OFF individually and where specific
parameters can be adjusted is called "manual mode". In manual mode, the modules in a patch can be used like independent
compact effects.
13
ZOOM GFX-8
Switching Modules On and Off During Play (Manual Mode)
Adjusting the Reference Pitch of the Tuner
After the GFX-8 is turned on, the tuner reference pitch is always "center A = 440 Hz". If desired, you can change the
reference pitch. This is useful for example to match your instrument to another instrument or sound source whose pitch cannot
be changed easily, such as an acoustic piano or a CD. To do this, first change the reference pitch of the GFX-8 and then use to
to perform tuning of your guitar.

Changing the Sound of a Patch (Edit Mode)
1. In play mode, select the patch you want to edit.
The patch can be from a user group or preset group. However,
because patches in the preset groups are read-only, after you have
edited a patch, you can only select a user group patch as store
target.
2. Press the EDIT key.
The EDIT key LED lights up, and the GFX-8 enters the edit
mode.
In edit mode, the following information is shown on the panel.
The keys and foot switch LEDs of modules that are ON in the
current patch are lit.
The key of the module selected for editing flashes.
When edit mode was activated immediately after switching
patches, the TOTAL key flashes. When edit mode was
activated after easy edit, the key of the edited module
flashes.
3. Use the panel keys to select the module you want to
edit.
In edit mode, the following keys serve to select the module for
editing. The selected key flashes.
If a module is selected that is set to OFF in the current
patch, editing is not possible (display shows "OFF").
However, ZNR settings can be made also when the EQ
module is OFF.
4. Use the PARM SELECT knob to select the parameter
you want to edit.
When you turn the PARM SELECT knob, the effects of the
module selected in step 3 and the effect parameters are shown in
turn on the display. (Which parameter is shown depends on
the currently selected module and effect). The currently
selected parameter setting can be checked using the
GROUP/BANK indicator.
NOTE
DRIVE, MOD, DLY/REV key
ZNR/EQ EDIT key
TOTAL key
MIDI key
Select the DRIVE, MOD, or
DLY/REV module respectively.
Make MIDI settings
(see page 35).
Selects the EQ module or ZNR.
With each push of the key, the color of the flashing LED
changes, and the edit target changes as follows.
Flashing red EQ module page 1
Flashing green EQ module page 2
Flashing orange ZNR
Flashing red Set patch name and patch level .
Flashing green Set RTM and CONTROL switch
functions (see page 30).
Flashing orange Make amp simulator (global
parameter) settings .
Serves to set the patch name and patch level (overall output
level of the patch) and other parameters applying to the entire
patch, as well as global parameters that apply to all patches.
With each push of the key, the color of the flashing LED
changes, and the edit target changes as follows.
HINTHINT
Currently selected parameter name
Currently selected parameter value
The condition where you can change the parameters that make up a patch to create your own sound is called "edit mode". This
section describes how to use edit mode.
Changing the Sound of a Patch (Edit Mode)
Basic Edit Mode Steps
14 ZOOM GFX-8
The basic steps that are normally taken in edit mode are explained here. Besides these, the edit mode also provides a short cut
to quickly edit a specific parameter (
see page 16).

Changing the Sound of a Patch (Edit Mode)
15
ZOOM GFX-8
5. Use the PARM VALUE/ADJUST knob to change the
parameter setting (or the effect).
To change the parameter shown on the display, use the PARM
VALUE/ADJUST knob. When a change is made to any effect
selection or parameter, the EDITED mark (.) appears on the
GROUP/BANK indicator.
6. To change the effect module ON/OFF setting, use the
following foot switches or keys.
In edit mode, the following keys or foot switches can be used to
change the module ON/OFF setting. The key of a module that has
been set to OFF goes out, and the module cannot be edited any
more. (However, the ZNR settings can be changed also if the EQ
module is OFF.)
• DRIVE module
DRIVE key (*1), Foot switch 1
• MOD module
MOD key (*1), Foot switch 2
• DLY/REV
DLY/REV key (*1), Foot switch 3
• EQ module.
ZNR/EQ EDIT key (*2)
(*1) Each push of the key: group A , group B, OFF
(*2) Each push of the key: ZNR (orange) EQ page 1
(red) EQ page 2 (green). When EQ page 1 or 2 is
selected, keeping the key depressed for 1 second
switches EQ ON or OFF.
7. When wishing to continue editing other parameters or
modules, repeat steps 3 - 6.
8. When editing is complete, press the EDIT/CANCEL
key.
The GFX-8 returns to the play mode.
All changes made in edit mode are temporary. Settings
revert to the original condition when the patch is switched.
When wishing to keep the changes, you must store the
patch (see page 18).
NOTE
PARM VALUE/ADJUST knob
EDITED mark (.)

Changing the Sound of a Patch (Edit Mode)
1. Use the DRIVE, MOD, DLY/REV, ZNR/EQ EDIT, or
TOTAL key to select the module you want to edit.
The selected key starts to flash.
2. Use the PARM knobs 1 - 4 to edit the parameter
selected in step 1.
In edit mode, the main parameters (parameter 1 - 4) of the
currently selected module are assigned to PARM knobs 1 - 4.
For example, when the effect OVER DRV of the
DRIVE module is selected, the PARM knobs 1 - 4
control the following parameters.
PARM knobs 1 - 4
GAIN PRE GAIN TONE LEVEL
Selects the effect of
the DRIVE module.
Selects the effect of the MOD module.
Selects the effect of
the DLY/REV module module.
[DRIVE/MOD/DLY/REV selector]
[GAIN knob]
[DRIVE/MOD/DLY/REV key]
Adjusts a major parameter
of the DRIVE module. In
almost all patches, this is
the GAIN parameter that
determines the distortion
intensity.
Respective module is OFF.
Module is ON and effect from group A (upper labels) is selected.
Key out or slowly flashing red
Key lit/flashing red
Module is ON and effect from group B (lower labels) is selected.
When the effect is switched, the name of the new effect is shown
on the display for about 2 seconds.
Key lit/flashing green
Switches the respective module (DRIVE, MOD, DLY/REV) ON and
OFF and switches the group for selectable effects. With each
push of the key, the unit cycles through the following three states.
16 ZOOM GFX-8
In edit mode, the following knobs and keys can be used to directly edit the effect selection or parameter.
Using PARM knobs 1 - 4, the main parameters of each module can be quickly edited.
Edit Mode Shortcut (1)
Edit Mode Shortcut (2)

Changing the Sound of a Patch (Edit Mode)
1. Activate edit mode.
2. Select CUSTOM1 (11A) or CUSTOM2 (11B) of the
DRIVE module.
Verify that the DRIVE module is ON.
3. Call up parameters 1 - 8 and make the desired
settings.
To make optimum use of custom distortion parameters, we
recommend to set parameters 1 - 4 as follows.
PARM1 GAIN 1 - 30 (as desired)
PARM2 PRE GAIN 7
PARM3 TONE 5
PARM4 LEVEL 25
4. Press the GROUP/CUSTOM SET key once.
This calls up parameter 9. The name of the parameter
(">CHAR<") appears on the display, and the GROUP/BANK
indicator shows the current value.
Parameter 9 can also be called up with the PARM SELECT
knob. This is convenient to switch between any parameter from 1
- 12.
5. Use the PARM VALUE knob to adjust the value.
Parameters 9 - 12 are special parameters for custom distortion,
allowing setting characteristics separately for each frequency
band.
6. Call up parameters 10 - 12 in the same way with the
PARM SELECT knob, and use the PARM VALUE knob
to adjust the value.
7. When you have created a custom distortion effect,
store the patch.
That parameters 9 - 12 are global parameters that affect all
patches. For example, when parameters 9 - 12 of custom
distortion 1 in a patch were adjusted, and the patch was
stored, the changes will affect all patches using custom
distortion 1 (effect type 11A).
NOTE
NOTE
The effect numbers 11A and 11B of the DRIVE module are reserved for custom distortion effects created by the user. For custom
distortion, in addition to the regular effect parameters (PARM1 - PARM8), there are four more parameters (PARM9 -
PARM12) which allow control over the distortion character and other characteristics.
17
ZOOM GFX-8
Creating Custom Distortion
Once you have set these parameters and stored the result as a patch, you can use it as a new distortion effect in other patches.
GAIN PRE GAIN TONE LEVEL
PARM 1 PARM 2 PARM 3 PARM 4
RTM SETTING
PARM 5 PARM 6 PARM 7 PARM 8
CUSTOM 2
> CHAR < > HIGH < > MID < > LOW <
PARM 9 PARM 10 PARM 11 PARM 12
GAIN PRE GAIN TONE LEVEL
PARM 1 PARM 2 PARM 3 PARM 4
RTM SETTING
PARM 5 PARM 6 PARM 7 PARM 8
FOR CLEAN
GAIN PRE GAIN TONE LEVEL
PARM 1 PARM 2 PARM 3 PARM 4
RTM SETTING
PARM 5 PARM 6 PARM 7 PARM 8
FOR CLEAN
GAIN PRE GAIN TONE LEVEL
PARM 1 PARM 2 PARM 3 PARM 4
RTM SETTING
PARM 5 PARM 6 PARM 7 PARM 8
FOR CLEAN
GAIN PRE GAIN TONE LEVEL
PARM 1 PARM 2 PARM 3 PARM 4
RTM SETTING
PARM 5 PARM 6 PARM 7 PARM 8
FDR CLN
GAIN PRE GAIN TONE LEVEL
PARM 1 PARM 2 PARM 3 PARM 4
RTM SETTING
PARM 5 PARM 6 PARM 7 PARM 8
CUSTOM 1
> CHAR < > HIGH < > MID < > LOW <
PARM 9 PARM 10 PARM 11 PARM 12
PARM 9 > CHAR < Distortion character
PARM 10 > HIGH < High-range character
PARM 11 > MID < Mid-range character
PARM 12 > LOW < Low-range character
[Normal distortion effects] [Custom distortion]

Changing the Sound of a Patch (Edit Mode) Storing and Copying Patches (Store Mode Operation)
1. In play mode or edit mode, press the STORE key.
The GFX-8 goes into store standby mode and the indication
"STORE?" and the store target patch name are shown
alternately on the display. The GROUP/BANK indicator
shows the store target group/bank number. The LED of one of the
foot switches 1 - 4 corresponding to the store target lights up.
If you wish to store the edited patch in another location than the
currently shown store target, change the patch name before
pressing the STORE key.
2. Use the BANK UP/DOWN foot switches and foot
switches 1 - 4 to select the store (copy) target.
When the edited patch was from a user group, the original
group/bank/foot switch will be selected as store target if no
other steps are taken. When the group/bank is changed, the
changed part of the GROUP/BANK indicator flashes.
3. To execute the patch store (copy) process, press the
STORE key once more.
The store (copy) process is carried out, and the unit
automatically reverts to the play mode.
To cancel the operation, press the CANCEL key before
pressing the STORE key the second time.
•The patches in the preset groups (A, b, C, d) are
read-only and cannot be used as store targets.
When the STORE key is pressed while a patch
from a preset group is selected, the store target is
automatically changed to "U0" and foot switch 1.
If required, change the store target with the USER
group/bank/foot switch.
•When the store (copy) process is executed, the
previous contents of the store (copy) target are
overwritten and cannot be restored. However, the
factory default settings of any user group patch
(or all patches) can be restored (see page 41).
"STORE?" and target patch name
are shown alternately.
Unless you store edited patches in memory, the settings will revert to the original condition when the patch is switched. Do not
forget to store any edited patches that you wish to keep.
It is also possible to copy an existing patch and store it at another location. For example, copying all patches to be used in a
specific song to one user group bank will make it easy to call up the patches with foot switches 1 - 4 during a performance.
Storing and Copying Patches (Store Mode Operation)
18 ZOOM GFX-8
1. Activate edit mode.
2. Press the MOD key or DLY/REV key to select the
module for which you want to store custom settings.
Verify that the selected module is ON.
3. Make the desired effect selection and parameter
settings for the module selected in step 2.
4. Press the GROUP/CUSTOM SET key.
The effect name flashes on the display, and the indication "C1"
flashes on the GROUP/BANK indicator.
When the respective module is OFF, custom module
settings cannot be stored.
5. Press the GROUP/CUSTOM SET key and select C1
(custom setting 1) or C2 (custom setting 2).
6. To store the custom settings you have made, press the
STORE key.
The stored custom settings can be selected at any time, simply by
choosing 11A (custom setting 1) or 11B (custom setting 2) for the
MOD module or DLY/REV module.
To cancel the store process, press the CANCEL key.
NOTE
Storing Custom Module Settings
The settings for the MOD module and DLY/REV module can be stored as custom settings. Stored custom settings can be called
up at any time in edit mode, for use with new patches or existing patches.
The operation steps are different than for creating custom distortion in the DRIVE module.
NOTE

This section lists all the effects and parameters available in the modules of the GFX-8. Parameters which are common for several
or all effects are explained only once.
* TYPE 1A - 7B have the same parameters.
Clean sound of built-in type tube amp.
Drive sound of built-in type tube amp.
Crunch sound of British style tube stack amp.
Drive sound of British style tube stack amp.
Drive sound of tube stack amp with fat midrange.
Drive sound of high-gain tube stack amp, ideal for heavy metal.
Old-style crunch sound.
Lead guitar sound with good power balance.
Dry overdrive sound.
Cabinet ringing style overdrive sound.
Distortion sound with dry character.
Strong distortion sound.
Boomy fuzz tone.
High-gain aggressive sound.
Adjusts the final gain.
Adjusts the basic distortion amount.
Adjusts the tone.
Adjusts the level of the signal after passing the DRIVE module.
Using the maximum value of the parameter adjusted by RTM as
reference (100%), this parameter adjusts the RTM maximum
value in the range from 0% (0) - 100% (1.0).
Using the maximum value of the parameter adjusted by RTM as
reference (100%), this parameter adjusts the RTM minimum
value in the range from 0% (0) - 100% (1.0).
Selects the parameter to be adjusted by RTM. Parameter 1 - 4 can
be selected.
Selects the controller to use for RTM. Available settings are "oF"
(off), "Pd" (expression pedal), MIDI control change 1 - 5, 8 - 31.
When the DRIVE module is ON, the switch functions as a
boost switch that further raises the level of the DRIVE
module. With each push of the CONTROL switch (foot
switch 4), the setting is toggled between normal (LED out)
and boost (LED lit).
This is a combination of compressor and clean sound.
Adjusts the compressor effect depth. When set to "oF", the effect
does not operate.
Adjusts the rise time of the effect.
See TYPE 1A (FDR CLN).
See TYPE 1A (FDR CLN).
* TYPE 8B - 9B have the same parameters.
This is a combination of compressor and crunch.
This is a combination of compressor overdrive.
This is a combination of compressor and distortion.
Adjusts the effect intensity.
Adjusts the compressor effect depth. When set to "oF", the effect
does not operate.
oF, 1 - 10
COMP SNS
Parameter 2
1 - 30
GAIN
Parameter 1
1 - 30
GAIN
GAIN knob
CMP+DIST
9BTYPE
CMP+OD
9ATYPE
CMP+CRU
8BTYPE
Parameter 8Parameter 4
1 - 10
ATTACK
Parameter 3
oF, 1 - 10
COMP SNS
Parameter 2
0 - 10
TONE
Parameter 1
oF, - 10
COMP SNS
GAIN knob
COMP
8ATYPE
oF, Pd, 1 - 5, 8 - 31
RTM CTL
Parameter 8
1 - 4
RTM DES
Parameter 7
0 - 99, 1.0
RTM MIN
Parameter 6
0 - 99, 1.0
RTM MAX
Parameter 5
1 - 30
LEVEL
Parameter 4
0 - 10
TONE
Parameter 3
1 - 10
PRE GAIN
Parameter 2
1 - 30
GAIN
Parameter 1
1 - 30
GAIN
GAIN knob
WD METAL
7BTYPE
FUZZ
7ATYPE
DIST
6BTYPE
V-DIST
6ATYPE
OVER DRV
5BTYPE
V-OD
5ATYPE
PWR LEAD
4BTYPE
VX CRU
4ATYPE
PVY DRV
3BTYPE
BG DRV
3ATYPE
MS DRV
2BTYPE
MS CRU
2ATYPE
FDR DRV
1BTYPE
FDR CLN
1ATYPE
[GLOBAL] indicates
a global parameter
that applies to all
patches.
• Parameter 1 of the DRIVE module can be adjusted with the
GAIN knob also when another module is selected.
[CONTROL SW] indicates an
item that can be operated with
the CONTROL switch (see page
31).
19
ZOOM GFX-8
DRIVE Module
Effects and Parameters
This module comprises a wide variety of effects, including clean acoustic simulator, distortion, overdrive, and fuzz.
Effects and Parameters

Effects and Parameters
Adjusts the rise time of the effect.
See TYPE 1A (FDR CLN).
See TYPE 1A (FDR CLN).
Instead of the internal DRIVE module, a distortion effect connected to
the rear-panel EXT.DIST SEND/RETURN jacks is used.
Adjusts the signal level supplied at the EXT.DIST SEND jack.
Adjusts the compressor effect depth. When set to "oF", the effect
does not operate.
Adjusts the rise time of the effect.
See TYPE 1A (FDR CLN).
See TYPE 1A (FDR CLN).
Changes the sound of an electric guitar into an acoustic guitar sound.
Adjusts the special string character of the acoustic guitar.
Adjusts the body character of the guitar.
Adjusts the overall sound quality.
See TYPE 1A (FDR CLN).
See TYPE 1A (FDR CLN).
These effects let you design your very own distortion circuit to achieve
any desired sound.
Adjusts the overall gain.
Adjusts the basic distortion.
Adjusts the tone.
See TYPE 1A (FDR CLN).
Note that parameters 9 - 12 below are global parameters that
apply to all patches. (For details, see page 17.)
The custom distortion effects can be customized in further detail
using the supplied software.
Selects the distortion character in the high-frequency range.
c1, c2: Clean type distortion
o1, o2: Overdrive type distortion
d1, d2: Regular distortion
A1, A2: Amp distortion
S1, S2: Sound set with editing software on computer
Selects the distortion character in the low- frequency range.
L1 - L4: Low-pass
Ft: Flat
P1 - P4: Peaking
S1, S2: Sound set with editing software on computer
Selects the distortion character in the mid- frequency range.
L1 - L3: Low-range emphasis
M1 - M3: Mid-range emphasis
H1 - H3: High-range emphasis
S1, S2: Sound set with editing software on computer
Selects the distortion character in the low-frequency range.
H1 - H2: High-pass
Ft: Flat
P1 - P4: Peaking
b1, b2: Boost
S1, S2: Sound set with editing software on computer
See TYPE 1A (FDR CLN).
> LOW <
Parameter 12
> MID <
Parameter 11
> HIGH <
Parameter 10
> CHAR <
Parameter 9
Parameter 8Parameter 4
0 - 10
TONE
Parameter 3
1 - 10
PRE GAIN
Parameter 2
1 - 30
GAIN
Parameter 1
1 - 30
GAIN
GAIN knob
CUSTOM2
11BTYPE
CUSTOM1
11ATYPE
Parameter 8Parameter 4
0 - 10
TONE
Parameter 3
1 - 10
BODY
Parameter 2
1 - 10
TOP
Parameter 1
1 - 10
TOP
GAIN knob
ACOUSTIC
10BTYPE
Parameter 8Parameter 4
1 - 10
ATTACK
Parameter 3
oF, 1 - 10
COMP SNS
Parameter 2
1 - 10
SEND LVL
Parameter 1
1 - 10
SEND LVL
GAIN knob
EXT DIST
10ATYPE
Parameter 8Parameter 4
1 - 10
ATTACK
Parameter 3
20 ZOOM GFX-8
ZNR/EQ (Zoom Noise Reduction/Equalizer) Module
This module contains the ZNR (Zoom Noise Reduction) function that reduces noise during pauses, and an equalizer for
adjusting the spectral balance of the sound.
(Zoom Noise Reduction)
This circuit achieves noise reduction during play pauses without
affecting the character of the sound.
Adjusts the ZNR sensitivity. Select the setting that yields best
noise reduction without causing the sound to become unnatural.
When set to "oF", the ZNR action is defeated.
(Equalizer Page 1)
This is page 1 of the four-band equalizer that serves to tailor the sound.
There is only one equalizer effect, but because it has many parameters,
the settings are divided into two pages (EQ P1/EQ P2) for operation
P1EQ
oF, 1 - 15
ZNR
Parameter 1
ZNR
• In edit mode, the color of the flashing ZNR/EQ EDIT LED
changes with each push of the key, and the editing target is
switched as follows.
• Flashing orange ZNR
• Flashing red EQ module page 1
• Flashing green EQ module page 2
[CONTROL SW] indicates an item that can be operated
with the CONTROL switch (see page 31).