GFX-1 - Guitar effects pedal ZOOM - Free user manual and instructions

USER MANUAL GFX-1 ZOOM

Thank you for selecting the ZOOM GFX-1 (hereafter simply called the "GFX-1").

Please take the time to read this manual carefully so as to get the most out of the unit and to ensure optimum performance and reliability.

Retain this manual, the warranty card and all other documentation for future reference.

Contents

SAFETY PRECAUTIONS 2

Features 3

Basic Terms 4

Operating the Unit on Battery Power 5

Controls and Functions / Connections 6

Selecting Patches for Play 10

Using the Tuner Function 12

Making/Changing DRIVE Module Settings 14

Editing a Patch 16

Storing/Copying Patches 18

Using a Separately Available Expression Pedal 20

Restoring the Factory Defaults 21

Effect Sequence 22

Effect Parameters 23

Specifications/Troubleshooting 37

Usage Precautions 38

Patch List 39

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:

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.

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.

Please observe the following safety tips and precautions to ensure hazard-free use of the GFX-1.

Power requirements

Since power consumption of this unit is fairly high, we recommend the use of an AC adapter whenever possible. When powering the unit from batteries, use only alkaline types.

[AC adapter operation]

• Be sure to use only an AC adapter which supplies 9 V DC, 300 mA and is equipped with a "center minus" plug (Zoom AD-0006). The use of an adapter other than the specified type may damage the unit and pose a safety hazard.
• Connect the AC adapter only to an AC outlet that supplies the rated voltage required by the adapter.
• When disconnecting the AC adapter from the AC outlet, always grasp the adapter itself and do not pull at the cable.
• During lightning or when not using the unit for an extended period, disconnect the AC adapter from the AC outlet.

[Battery operation]

• Use four conventional IEC R6 (size AA) batteries (alkaline).
  The GFX-1 cannot be used for recharging.

• Pay close attention to the labelling of the battery to make sure you choose the correct type.

• When not using the unit for an extended period, remove the batteries from the unit.

• If battery leakage has occurred, wipe the battery compartment and the battery terminals carefully to remove all remnants of battery fluid.
  While using the unit, the battery compartment cover should be closed.

Environment

To prevent the risk of fire, electric shock or malfunction, avoid using your GFX-1 in environments where it will be exposed to:

• Extreme temperatures
• Heat sources such as radiators or stoves
  High humidity or moisture
• Excessive dust or sand
• Excessive vibration or shock

Handling

• Never place objects filled with liquids, such as vases, on the GFX-1 since this can cause electric shock.
• Do not place naked flame sources, such as lighted candles, on the GFX-1 since this can cause fire.
• The GFX-1 is a precision instrument. Do not exert undue pressure on the keys and other controls. Also take care not to drop the unit, and do not subject it to shock or excessive pressure.
  Take care that no foreign objects (coins or pins etc.) or liquids can enter the unit.

Connecting cables and input and output jacks

You should always turn off the power to the GFX-1 and all other equipment before connecting or disconnecting any cables. Also make sure to disconnect all connection cables and the power cord before moving the GFX-1.

Alterations

Never open the case of the GFX-1 or attempt to modify the product in any way since this can result in damage to the unit.

Volume

Do not use the GFX-1 at a loud volume for a long time since this can cause hearing impairment.

Features

The GFX-1 is a sophisticated multi-effect processor for guitar with the following great features.

Superior performance

The GFX-1 provides a palette of 34 built-in high-quality effects, including a wide variation of distortion settings and flexible modulation effects. Up to nine effects can be used simultaneously. In performance and features, the GFX-1 far surpasses anything in its class.

Sturdy case and smooth operation feel

The metal body and large foot switches of the GFX-1 are designed to withstand the rigors of use on stage. The intuitive operation of the unit is derived from the highly popular ZOOM 606. Dedicated selectors for the most important distortion effects make the unit a snap to use. Controlling distortion type and intensity during a performance is smooth and easy.

Built-in auto-chromatic tuner

The integrated auto-chromatic tuning function is tailored for the needs of the guitarist and can be used on stage.

- Compatible with expression pedal

Connecting an optional expression pedal makes it easy to adjust effect depth or volume with your foot during play. Whether you choose pedal wah or gutsy pitch bend, the range of available sounds is on a par with top-range units.

- Dual power supply principle allows use anywhere

Besides the AC adapter, the unit can also be powered from four IEC R6 (size AA) batteries. Continuous operating time on batteries is approximately 7 hours with manganese batteries and 24 hours with alkaline batteries.

This section explains some important terms that you will find in this manual.

Effect module

As shown in the illustration below, the effect sound of the GFX-1 is created by routing the signal through a series of different effects. Each of these effects is called an effect module.

In addition to effect modules such as DRIVE (distortion), MOD/ PITCH (modulation), or DLY/REV (delay and reverb), you can also use the ZNR (Zoom Noise Reduction) and amp simulator simultaneously. Parameters such as effect intensity can be adjusted for each module, and modules can be switched on and off as needed.

Effect type

Each effect module of the GFX-1 contains a variety of effects in the same general family. These are called effect types, and you can select one of these at a time. For example, the MOD/PITCH module comprises the effect types chorus, flanger, pitch shifter, etc.

Effect parameter

Each effect module has various parameters that control how the effect operates. By adjusting the parameters for each module, you have a considerable amount of control over the final sound.

Patch

In the GFX-1, effects are stored and called up in patches. A patch contains information about module on/off settings, selected effect types, and effect parameter settings. The GFX-1 can store 40 patches in its internal memory.

Bank

A combination of 4 patches is called a bank. The GFX-1 has a total of 10 banks which are labelled A through J. The patches in each bank are numbered 1 through 4. To select a patch, you specify the bank and the patch number. A1 selects patch 1 in bank A, and F4 selects patch 4 in bank F.

- Play mode/edit mode

These terms refer to the operation state of the GFX-1. The mode is selected with the PLAY/EDIT selector. In play mode, you select the effects for playing, and in edit mode, you can change the effect settings.

Operating the Unit on Battery

1. Turn the unit over, push the latch of the battery compartment cover, and lift the cover up.

1. Insert four fresh IEC R6 (size AA) batteries into the battery compartment.

1. Close the battery compartment cover. Make sure that the latch snaps shut.

NOTE

When a dot (.) flashes on the display, the batteries are almost exhausted. Replace them as soon as possible.

Controls and Functions / Connections

Top Panel

DRIVE selector

Selects the distortion (effect type) used in the DRIVE module.

Display

Shows various information necessary for operation of the GFX-1, such as patch number, parameter settings, etc.

DRIVELED

Indicates the on/off status of the DRIVE module.

STORE key

Serves for storing an edited patch or copying an existing patch to another location.

GAIN [+] /[-] keys

Adjust the DRIVE module distortion intensity and gain.

Foot switches [1] - [4]

Serve for effect patch switching and for operation of the tuner function.

PLAY/EDIT selector

Switches between play mode and edit mode and also serves to select the module for editing.

VALUE [+] /[-] keys

Serve for adjusting setting values for various items.

Rear Panel

[OUTPUT / PHONES] jack

This jack is used for convection to a guitar amplifier or a pair of stereo headphones. A Y-splitter cable can also be used in this jack to connect the GFX-1 to two amplifiers.

Connections

ZCQM

ZOOM CORPORATION

MADE IN CHINA

MODEL GFX-1 SERIAL NO.

GFX-1

INPUT

[INPUT] jack

Connect the guitar to this jack.

ZCQM

ZOOM CORPORATION

MADE IN CHINA

MODEL GFX-1 SERIAL NO.

GFX-1

INPUT

To use the GFX-1 in a mono configuration, connect the [OUTPUT/PHONES] jack to the amplifier using a cable with mono phone plugs. By using a Y cable and connecting the output to two amplifiers, you can get a wider sound spread from the effects. It is also possible to connect a pair of headphones to this jack.

[CONTROL IN] jack

An optional expression pedal (FP01/FP02) can be connected here.

Selecting Patches for Play

To try out the GFX-1, we recommend that you simply play your instrument while switching patches.

Power-on

• Connect your instrument and guitar amp to the GFX-1, and then set the [POWER ON/OFF] switch on the rear panel to ON.
• Turn on the guitar amplifier and adjust the volume to a suitable position.

Set GFX-1 to play mode

• When the [PLAY/EDIT] selector is set to a different position, set it to "PLAY".

The currently selected bank and patch number are shown on the display

Bank Patch number

HINT

Immediately after turning on power to the GFX-1, the unit will be in play mode even if the [PLAY/EDIT] selector is set to a different position.

Switch patches

• To switch patches in play mode, use the foot switches [1] - [4].

To adjust the master volume

• Press one of the VALUE [+]/[-] keys to change the value.

The setting range is 0 - 50. When the unit is turned off and on again, the setting will be reset to 40.

When using headphones, the master volume setting can be used to adjust the listening volume.

Switch banks

• To select among the banks A - J, use the BANK [] / [] keys.

By pressing foot switches [1] and [2] together, you can switch to the previous bank, and by pressing foot switches [3] and [4] together, you can switch to the next bank.

Using the Tuner Function

The GFX-1 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).

NOTE

The tuner function is not available if the PLAY/EDIT selector is set to a position other than PLAY.

Switch to bypass or mute

• Press the foot switch [1] - [4] that corresponds to the currently selected patch.

Pressing and immediately releasing the switches sets the unit to the bypass condition. Pressing and holding the switches for at least 1 second sets the unit to the mute condition.

Bypass

Mute

Tune the guitar

• Play the open string you want to tune, and watch the display.

The left side of the display shows the note which is closest to the current pitch.

A = D = G =

A^# = ， D^# = . G^# =

B = E =

C F

C^# = ， F^# =

Adjusting the reference pitch of the tuner

The default reference pitch of the tuner (the setting which is established when the unit is turned on) is center A = 440Hz .

You can fine-adjust this reference pitch if desired.

- Press one of the VALUE [+] / [-] keys.

The current reference pitch is shown for about 2

seconds. The default setting is "40" (center A = 440Hz ).

- Use the VALUE [+] /[-] keys to adjust the setting.

The setting range is 35 - 45 (center A = 435 to 445Hz ).

HINT

When power to the unit is turned off and on again, the setting reverts to the default of "40" (center A = 440 Hz).

4 Return to play mode

• Press one of the foot switches [1] - [4].

The patch of that switch is called up.

Pitch is high Pitch is correct Pitch is low

Indication turns faster the more the pitch is off.

The right side of the display shows a symbol that indicates by how much the tuning is off.

• Tune the other strings in the same way.

Making/Changing DRIVE Module Settings

The DRIVE module comprises various distortion types and gain settings, which can be adjusted with the dedicated selector and keys at any time.

HINT

The following operation can be carried out in play mode or edit mode.

Select the DRIVE module distortion type

• Use the DRIVE selector to select the desired distortion type (effect type).

The selected effect type name is shown for about 2 seconds on the display. For a detailed list of effect types, see the section "Effect Parameters" at the end of this manual.

HINT

By setting the PLAY/EDIT selector to the DRIVE position, you can check the current effect type.

NOTE

When the DRIVE LED is out, the DRIVE module is off. If you switch to a different effect type in this condition, the module is automatically turned on.

Adjust the DRIVE module gain

• Press one of the GAIN [+] / [-] keys.

Depending on which effect type is currently selected, distortion depth or signal gain changes. The GAIN parameter value is shown for about 2 seconds on the display.

To switch the DRIVE module on or off

• Press the GAIN [+] / [-] keys together.

When the DRIVE module is switched off, the DRIVE LED goes out.

HINT

The change made in this way is only temporary. When you select a different patch, the setting will revert to the original condition. If you want to keep the change, store the patch, as described on page 18.

Editing a Patch

Editing means changing the various effect parameter settings of a patch. Use an existing patch as a starting point and adjust the parameters to create your own and original sound.

Select the effect parameter

• Use the PLAY/EDIT selector to select the module and parameter you want to edit.

The GFX-1 switches to the edit mode and the value of the currently selected effect parameter appears on the display. When the GFX-1 is in edit mode, a dot is shown in the bottom right corner of the display.

Parameter value

For information on effect modules and parameters, see the section "Effect Parameters" at the end of this manual.

HINT

The DRIVE module can also be directly edited by using the DRIVE selector and GAIN [+] /[-] keys ( p.14).

Terminate the edit mode

• Set the PLAY/EDIT selector to "PLAY". The unit reverts to the play mode.

Adjust the parameter setting value

• Use the VALUE [+] /[-] keys.

The keys operate as follows.

• Keeping one key depressed: Value changes continuously.
• Hold down one key while pressing the other key:

Value increases/decreases rapidly.

• Pressing both keys simultaneously:

Switch to next effect type in same module.

Changing the module on/off setting

• Press one of the foot switches [1] - [4].

This switches the effect module selected with the PLAY/EDIT selector on or off.

NOTE

When the [PLAY/EDIT] selector is set to "PATCH LEVEL" the module cannot be turned off.

NOTE

The editing changes made in this way are only temporary. When you return to the play mode and select a different patch, the settings will revert to the original condition. If you want to keep the change, store the settings before switching the patch ( p.18).

Storing/Copying Patches

An edited patch can be stored at any desired location in the internal memory of the unit. It is also possible to copy an existing patch and store it at another location.

Press the STORE key in play mode or edit mode

The bank and patch number on the display are flashing.

Specify the store/copy target location

• Use the BANK [] /[▲] keys and the foot switches [1] - [4] to specify the patch to be used as a store/copy target.

Press the STORE key once more

When the store/copy process is completed, the unit reverts to the original mode, with the target patch being selected.

NOTE

When the store/copy process is executed, the previous content of the store target is overwritten and cannot be restored if it was a user-created patch. You should therefore take care when selecting a target patch. However, the factory default settings of an individual patch or all patches can be restored, as described on page 21.

ZOOMGFX-1 GUITAR EFFECTS PROCESSOR

To cancel the store/copy process

• Press the VALUE [+] /[-] keys or GAIN [+] /[-] keys instead of the STORE key.

The store process is aborted and the unit reverts to the previous mode.

NOTE

The store process is also canceled when the [PLAY/EDIT] selector or the [DRIVE] selector is operated.

Using a Separately Available Expression Pedal

The GFX-1 is equipped with a [CONTROL IN] jack that accepts an optional expression pedal. Connect and use the pedal as follows.

Using the expression pedal (FP01/FP02)

If you connect an optional expression pedal to the [CONTROL IN] jack, the pedal can be used to adjust the volume or as a real-time controller for an effect parameter.

For information on parameters that can be controlled with the FP01/FP02, see pages 25 - 36.

1. Insert the plug of the FP01/FP02 into the [CONTROL IN] jack and turn the GFX-1 on.
2. Select the patch in play mode and move the expression pedal up or down.

Depending on what is programmed for that patch, the pedal will change the volume or an effect parameter.

HINT

The pedal can also be used in edit mode.

NOTE

If you connect the expression pedal while the GFX-1 is on, malfunction may occur. Be sure to connect the pedal first, and then turn the GFX-1 on.

Restoring the Factory Defaults

The GFX-1 comes with 40 recommended patches (factory default patches). Even if you overwrite any of these patches, you can restore the original contents of the patch at any time.

There are two ways of restoring factory defaults. "All Initialize" returns the entire set of patches to the original condition. "Factory Recall" restores a specific patch to the original condition.

1. While holding down the STORE key, turn the unit on.

The indication "AL" flashes on the display.

To perform All Initialize

2. Press the STORE key once more.

All patch settings are returned to the factory default condition, and the unit switches to play mode. To cancel All Initialize, press the VALUE [-] key.

NOTE

All user-created patches will be lost when performing All Initialize. Use this function with care.

To perform Factory Recall

2. Use the BANK [ ] / [ ] keys and the foot switches [1] - [4] to select the patch you want to return to the original condition.

The specified bank and patch number flashes on the display.

3. Press the STORE key once more.

The settings of the specified patch are returned to the factory default condition.

If desired, repeat steps 2 and 3 to restore other patches. To terminate the Factory Recall operation, press the VALUE [-] key. The unit will switch to the play mode at this point.

Effect Sequence

A patch of the GFX-1 can be thought of as 8 effect modules connected in series, as shown in the illustration below. Depending on the on/off setting of the individual modules, you can use all eight effect modules together or use only specific modules.

- Effect module sequence and effect types

In this module, you can also have two effect types operating in succession, such as FLANGER CHORUS or TREMOLO CHORUS.

This section explains all effect types and parameters in the effect modules.

- How to read the "Effect Parameters" listing

Display

Shows the settings that can be selected for each module with the VALUE [+] /[-] keys. Depending on the selected effect module, the effect type, parameter setting value, or both are shown.

Effect type only shown

Effect type

Parameter setting value only shown

Setting value

Effect type and parameter setting value shown

Effect type

Setting value

PLAY/EDIT selector

The illustration shows the selector position for calling up the effect module/effect parameter.

WAH

WAH module

This module comprises auto wah and pedal wah for use with the expression pedal. Use the VALUE [+] / [-] keys to select the effect type and adjust the effect intensity.

AUTO WAH

This effect type automatically varies the amount of wah dependent on playing a particular role in the signal. The effect type is also for the auto with effect, so that wah operates also with low input signal levels.

AL AUTO WAH

1. 实验原理

or auto wah.

AL BOOST

be used to shift the er

• foot pedal for pedal wah, where phasized frequency up or down.

OFF

Turns the WAH module off.

Module on/off

For every effect module, selecting the "ofF" setting will turn the module off. (The "ofF" setting cannot be selected if the [PLAY/EDIT] selector is set to "PATCH LEVEL".)

Pedal icon

When you select this effect type, the respective effect module can be controlled in real time with an expression pedal connected to the GFX-1. Which parameter is changed by moving the pedal also depends on the effect type.

HINT

• Except for pedal wah, when an effect type with the pedal icon is selected, the sound will reflect a representative setting of that module.
• If no effect type with a pedal icon is selected within a patch, the expression pedal operates as volume pedal.

PATCH LEVEL
PATCH LEVEL
	Adjusts the overall volume of the patch. A value of 25 corresponds to unity gain (input level and output level are equal).

COMP/LIMIT
COMP/LIMIT module
This module comprises the compressor and limiter effect types. Use the VALUE [+] / [-] keys to select the effect type and adjust the effect intensity.
■COMPRESSOR This effect type attenuates high-level signal components and boosts low-level signal components, thereby keeping the overall signal level within a certain range. The effect prolongs sustain and makes the sound more uniform. Higher setting values result in stronger compression. LEVEL ↑ Original sound → TIME → LEVEL ↑ Compressor → TIME
■LIMITER This effect type attenuates peak levels and prevents overload of the next module. Higher setting values result in stronger limiter action. LEVEL ↑ Original sound → LEVEL ↑ Limiter → TIME
□F	■OFF Turns the COMP/LIMIT module off.

WAH		WAH
		WAH module
		This module comprises auto wah and pedal wah for use with the expression pedal. Use the VALUE [+] / [-] keys to select the effect type and adjust the effect intensity.
A1↑A9	■AUTO WAHThis effect type automatically varies the amount of wah dependent on playing intensity. Higher setting values result in higher input sensitivity for the auto wah effect, so that wah operates also with low input signal levels.
AP	■PEDAL AUTO WAHThe expression pedal adjusts the sensitivity for auto wah.
PI↓PG	■PEDAL BOOSTCreates a sound where a certain frequency is boosted when pedal wah is half open. Higher setting values result in higher emphasized frequency.
PP	■PEDAL WAHThis effect type allows using the expression pedal for pedal wah, where the pedal can be used to shift the emphasized frequency up or down.
OFFD	■OFFThe WAH module is off.

DRIVE
DRIVE module
In addition to 9 distortion type effects, this module also comprises two clean effect types. Use the VALUE [+] / [-] keys to select the effect type and the GAIN [+] / [-] keys to adjust the gain.
Setting the gain to "dP" allows controlling the gain with the expression pedal (for all effect types of the DRIVE module).
F0	■FDR CLN (FDR Clean) Simulates the clean sound of a built-in type tube amplifier.
U6	■US BLUES Solid crunch sound for playing the Blues.
I5	■MS DRV (MS Drive) Drive sound emulating a British style tube stack amp.
B0	■BG DRV (BG Drive) Drive sound emulating a tube stack amp with a tight and controlled midrange.
P0	■PVY DRV (PVY Drive) High-gain tube amplifier drive sound, great for heavy metal.
O0	■OD (Overdrive) Extended overdrive sound with the character of tube amplifier distortion.
D6	■DIST (Distortion) Distortion similar to driving a three-stack amp in the hard rock style.
L0	■LEAD Smooth, bright distortion sound.
FU	■FUZZ Sixties style fuzz sound with fat bass.
ITE	■METAL Heavy metal type sound with emphasized bass and treble. Also suitable for 7- string guitar sound.
AC	■ACOUSTIC Changes the sound of an electric guitar into that of an acoustic guitar.
OFF	Turns the DRIVE module off.

EQ contour

EQ module (basic parameter)

This module comprises a 4-band equalizer. Use the VALUE [+] / [-] keys to select the EQ characteristics.

■4-BAND EQ (4-Band Equalizer) Allows boost or cut in the bass/middle/high/presence band. You can select one of 50 available patterns (1 - 50). 1 - 10: Lower values result in attenuated highs and emphasized lows. 11 - 20: Lower values result in lower emphasized frequency. 21 - 24: Lower values result in emphasized midrange. 25: Flat characteristics 26 - 30: Higher values result in emphasized highs. 31 - 40: Higher values result in higher emphasized frequency. 41 - 50: Higher values result in emphasized presence and lows.

■OFF Turns the EQ module off.

EQ CONTOUR		CONTOUR
		EQ module extended parameters
		Allows fine adjustment of EQ characteristics selected with the EQ module basic parameters.
- - -	■ CONTOURUsing the 0 value as a reference (flat setting), negative values cause an increasing boost in the low range and positive values cause an increasing boost in the high range. When the EQ module is On, this parameter is always active. Check this parameter if the 4-band EQ effect type setting does not seem to produce the desired results.

ZNR/AMP

ZNR/AMP module

This module comprises ZNR (ZOOM Noise Reduction) for reducing noise during play pauses or silent passages, and an amp simulator which simulates the sound of various guitar amplifiers. Use the VALUE [+] / [-] keys to adjust the ZNR threshold or select the type of amplifier.

■ZNR ZNR (ZOOM Noise Reduction) serves for reducing noise during play pauses or silent passages. Higher setting values result in more efficient noise reduction. Set the value as high as possible without causing the sound to be cut off unnaturally.

■COMBO Simulates a combo type amplifier. When this setting is selected, the amp simulator is on and ZNR is off.

■ZNR + COMBO ZNR and combo amp simulator are both on. Increasing the right-digit value results in more efficient noise reduction.

■BRIGHT COMBO Simulates a bright sounding combo type amplifier. When this setting is selected, the amp simulator is on and ZNR is off.

■ZNR + BRIGHT COMBO ZNR and bright combo amp simulator are both on. Increasing the right-digit value results in more efficient noise reduction.

■STACK Simulates a stack type guitar amplifier. When this setting is selected, the amp simulator is on and ZNR is off.

■ZNR + STACK ZNR and stack amp simulator are both on. Increasing the right-digit value results in more efficient noise reduction.

■OFF The ZNR/AMP module is off.

MOD/PITCH

MOD/PITCH module

This module comprises modulation effects such as chorus and flanger, as well as a pitch shifter. Use the VALUE [+] / [-] keys to select the effect type and adjust the effect intensity.

CHORUS (Chorus) This effect mixes a variable pitch-shifted component to the original signal, resulting in full-bodied and expansive sound. Higher setting values result in a more pronounced chorus effect. PITCH + Original sound 0 TIME - PITCH + Effect sound (left channel) TIME Effect sound (right channel) TIME

PEDAL CHORUS The expression pedal adjusts the chorus effect depth of the effect sound.

FLANGER This effect produces a unique, undulating sound by shifting the pitch up and down. Higher setting values result in faster modulation.

FLANGER→CHORUS This effect type is a serial connection of flanger and chorus. Higher setting values result in faster flanger modulation. (Chorus intensity is fixed.)

PEDAL FLANGER The expression pedal adjusts the modulation speed of the flanger effect.

H1 H6	■PHASE SHIFT (Phaser) This effect mixes a phase-shifted component to the original sound, resulting in a pulsating character. Higher setting values result in faster modulation.	LEVEL +	Original sound Effect sound TIME
H7 H9	■PHASE SHIFT→CHORUS This effect type is a serial connection of phaser and chorus. Higher values result in faster phaser modulation. (Chorus intensity is fixed.)
HP	■PEDAL PHASE SHIFT The expression pedal adjusts the modulation speed of the phaser effect.
d1 d6	■DOUBLING This effect adds very short delay components to the original signal, which gives the sound a more full-bodied character such as when several instruments are playing in unison. Higher setting values result in a more pronounced doubling effect.
d7 d9	■DOUBLING→CHORUS This effect type is a serial connection of doubling and chorus. Higher values result in a more pronounced doubling effect. (Chorus intensity is fixed.)
dP	■PEDAL DOUBLING The expression pedal adjusts the depth of the doubling effect.
E1 E6	■TREMOLO This effect periodically varies the volume. Higher setting values result in a faster tremolo.
	LEVEL +	Signal after tremolo effect 0	+
	-	0	-

E7 E9	■TREMOLO→CHORUS This effect type is a serial connection of tremolo and chorus. Higher setting values result in faster tremolo. (Chorus intensity is fixed.)
E7	■PEDAL TREMOLO The expression pedal adjusts the speed of the tremolo effect.
E7	■STEP This effect introduces a filter which changes randomly, resulting in an auto-peggio sound. Higher setting values result in faster step sound change.
E7	■STEP→CHORUS This effect type is a serial connection of step and chorus. Higher setting values result in faster step sound change. (Chorus intensity is fixed.)
E7	■PEDAL STEP The expression pedal adjusts the speed of the step effect.
E7	■CRY1 This effect changes the sound in a way similar to a talking simulator. Higher setting values result in a more pronounced sound change.
E7	■CRY2 This is a cry effect with a different sound character from CRY1. Higher setting values result in a more pronounced sound change.
E7	■CRY→CHORUS This effect type is a serial connection of cry and chorus. Higher setting values result in a more pronounced cry type sound change. (Chorus intensity is fixed.)
E7	■PEDAL CRY The expression pedal adjusts the input sensitivity of the cry effect.
■RING MOD (Ring Modulator) This effect adds amplitude modulation to the signal, resulting in a metallic sound. Higher setting values result in higher modulation frequency.
■RING→CHORUS (Ring Modulator→Chorus) This effect type is a serial connection of ring modulator and chorus. Higher setting values result in higher ring modulator frequency. (Chorus intensity is fixed.)
■PEDAL RING MOD The expression pedal adjusts the modulation frequency of the ring modulator.
■SLOW ATTACK (Slow Attack) This effect reduces the attack rate of the sound, resulting in a volume playing style sound. Higher setting values result in a slower attack rate.
■SLOW ATTACK→PITCH SHIFT This effect type is a serial connection of slow attack and pitch shifter. Higher setting values result in a slower attack rate. (The pitch shifter is fixed to the 1 octave up setting.)
■PEDAL SLOW ATTACK The expression pedal adjusts the rise time of the slow attack.
P1 ↓ P9	■PITCH SHIFT This effect varies the pitch of the original sound. You can select one out of nine preset pitch shift patterns (P1 - P9). ·P1: A component shifted by 1 octave down is mixed to the original sound. ·P2: A component shifted by a perfect fifth down is mixed to the original sound. ·P3: A chorus effect is added to the P2 setting. ·P4: A component shifted by a perfect fourth up is mixed to the original sound. ·P5: A chorus effect is added to the P4 setting. ·P6: A component shifted by 1 octave up is mixed to the original sound. ·P7: A slightly pitch-shifted component is mixed to the original sound, resulting in a chorus with slight modulation. ·P8: A component shifted by a perfect fourth up and down is mixed to the original sound. ·P9: A component shifted by 1 octave up and down is mixed to the original sound.
Pd	■PEDAL PITCH DOWN The expression pedal shifts the pitch of the original sound downwards. The adjustment range is 0 to -2 octaves.
PU	■PEDAL PITCH UP The expression pedal shifts the pitch of the original sound upwards and shifted sound is mixed to the original. The adjustment range is 0 to +1 octave.
OF	■OFF Turns the MOD/PITCH module off.
DLY/REV
DLY/REV module (basic parameters)
This module comprises delay and reverb effects. Use the VALUE [+] / [-] keys to select the effect type and adjust the effect intensity.
■DELAY This is a conventional digital delay effect. By using the output in stereo, you can achieve a ping-pong delay where the delay sound alternates between the left and right channels. The right-digit setting values control the feedback (number of repetitions) and the mixing ratio between original sound and effect sound..
■PEDAL DELAY The expression pedal adjusts the mixing amount of the effect sound.
■ECHO This is a delay effect with a warm sound similar to a tape echo. By using the output in stereo, you can achieve a ping-pong delay where the delay sound alternates between the left and right channels. The right-digit setting values control the feedback (number of repetitions) and the mixing ratio between original sound and effect sound.
■PEDAL ECHO The expression pedal adjusts the mixing amount of the effect sound.
■HALL This is a reverb effect that produces a sound similar to the reverberation in a concert hall. Higher right-digit setting values result in stronger reverb.
■PEDAL HALL The expression pedal adjusts the mixing amount of the effect sound.
■ROOM This is a reverb effect that simulates the reverberation in a room. Higher right-digit setting values result in stronger reverb.
■PEDAL ROOM The expression pedal adjusts the mixing amount of the effect sound.
■OFF Turns the DLY/REV module off.

TIME

DLY/REV module (extended parameters)

These parameters serve to adjust the delay time or reverb time for the effect type selected with the DLY/ REV module basic parameters. The parameters are linked to the DLY/REV module and are off when the DLY/REV module is off.

■DELAY TIME (When DELAY or ECHO is selected as effect type) Adjusts delay time in 10 ms units. The adjustment range is 10 - 370 ms. (Example: A setting value of 15 gives a delay time of 150 ms.)

■REVERB TIME (When HALL or ROOM is selected as effect type) Sets the reverb time in the range from 1 - 10. Higher right-digit setting values result in longer reverb time.

Specifications

Effect type	34/max. 9 simultaneous
Effect module	Max. 8 simultaneous
Patch	4 patches x 10 banks = 40 patches
Sampling frequency	31.25 kHz
A/D conversion	20-bit, 64-times oversampling
D/A conversion	20-bit, 8-times oversampling
Display	2-digit, 7-segment LED
Input	Standard mono phone jack
Rated input level	-20 dBm
Input impedance	470 kilohms
Output	Standard stereo phone jack (line/headphones combined)
Max. output level	+3 dBm
Output load impedance	10 kilohms or more
Control input	FP02 input
Power requirements
AC adaptor	DC 9 V center minus, 300 mA (ZOOM AD-0006)
Batteries	4 x IEC R6 (size AA); Approx. battery life 24 hours (alkaline batteries)
Dimension	268(W) x 117(D) x55(H) mm
Weight	1.0kg without batteries
Option	Expression pedal FP02
* 0 dBm = 0.775 Vrms
* Design and specifications are subject to change without notice.

Troubleshooting

No power

Refer to "1 Power-on" on page 10.

No sound

• Is an expression pedal (FP01/FP02) connected to the GFX-1 fully raised? For some patches, the expression pedal controls the volume and the pedal must be pushed down to obtain a suitable volume.

Is the master volume setting low? Refer to "5 To adjust the master volume" on page 11.

High level of noise

• Is ZOOM AC adapter being used?

Be sure to use only the AD-0006 adapter (9 V DC, 300 mA, center minus plug).

Is ZNR setting suitable?

Set the ZNR value as high as possible without producing an unnatural cut of the instrument sound.

Battery life is short

Are manganese batteries being used? Continuous operation time is 24 hours with alkaline batteries but only 7 hours with manganese batteries. The use of alkaline batteries is recommended.

- Electrical interference

For safety considerations, the GFX-1 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-1, as the possibility of interference cannot be ruled out entirely.

With any type of digital control device, the GFX-1 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-1. 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.

Bank	No.	Patch Name	Comment
[A] DEMO	1	Attack	Cool crunch sound with strong attack
	2	Harpsichord Guitar	Harpsichord sound
	3	Fuse Lead	Smooth lead sound
	4	Passion	Passionate fuzz
[B] LOUD/HEAVY	1	Extreme Metal	Extreme American metal sound
	2	Mystical	Rich delay good for 120-BPM tempo
	3	Def-T Rhythm	Crunch sound for heavy rock
	4	Def-T Drive	Distortion for heavy rock
[C] MODERN ROCK	1	Emotion	Expressive distortion
	2	Radio-H Clean	Tremolo sound suitable for arpeggio
	3	Wild Crunch	Solid crunch sound
	4	Double Rage	Great for single-note riff in drop-D tuning
[D] GRUNGE/ PUNK	1	Green Punk	Pop punk sound
	2	Delayed Clean	Good for violin playing in 120 BPM
	3	Kurdt Crunch	Slightly distorted crunch sound
	4	Super Drive	Multipurpose bright distortion
[E] CLASSIC	1	Old Stack	Nostalgic stack amp sound
	2	Rockabilly	Rockabilly sound with doubling effect
	3	Jeff's Pitch	Octaver
	4	White LPC	Lead sound of humbucker pickup
[F] MULTI FX	1	Heavy Jet	Drastic jet sound
	2	Fantasy	Magical clean sound
	3	Talk & Cry	Talking modulator sound
	4	Step Stream	Avant-garde step sound
[G] TRAD	1	70's Wah Drive	1970s sound by wah and drive
	2	Beat Box	British sound for backing
	3	LK Flange	Versatile flanging sound
	4	LP-Paf	Old humbucker sound faithful to nuances
[H] JAZZ/BLUES	1	Blues Drive	Drive sound for blues
	2	Pat M	New York jazz sound
	3	Warm Tone	Slightly distorted acid jazz sound
	4	Match	Superb crunch sound
[I] FUNK	1	Heavy Funk	Heavy funk sound
	2	American Clean	Clean sound of built-in vacuum tube amp
	3	Crunch P-Wah	Crunch sound with enhanced pedal wah
	4	Soul/Funk	Auto wah for funk
[J] NEW AGE	1	Hi-Gain Drive	Powerful distortion
	2	Neo Phase	Beautiful phaser
	3	Digi Dist	Distortion compatible with big beat
	4	Radio-H Wall	Modern stack amp sound

The FCC regulation warning (for U.S.A.)

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.

ZEEM

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ZOOM CORPORATION

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Chiyoda-ku, Tokyo 101-0032, Japan

Web Site: http://wwwzoomo.co.jp