Zoom GFX-4 Operation Manual Download Page 1

CONTENTS

Safety Precautions/Usage Precautions 

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Introduction 

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Terms Used in This Manual 

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Controls and Functions 

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Top Panel

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Rear Panel

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5

Getting Connected 

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Guitar amp/instrument connection

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About the Mono Output

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Preparations 

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7

Power Up

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Using the Amp Simulator

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Operation Guide 1 Selecting Patches for Playing 

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(1) Turn on the power
(2) Select the patch
(3) Select the bank
(4) Select the group
(5) Use the pedal

Operation Guide 2 Editing Patches 

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(1) Select module to edit
(2) Switch effect modules on and off
(3) Select the effect type
(4) Edit the effect parameters

Operation Guide 3 Storing/Swapping Patches 

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(1) Switch the GFX-4 to store mode
(2) Select the store target patch
(3) Select whether to store or swap the patch
(4) Carry out the store/swap process

Operation Guide 4 Using the Tuner (Bypass/Mute) Function 

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(1) Set the GFX-4 to bypass(mute)
(2) Tune your guitar
(3) Adjust the reference pitch of the tuner
(4) Return to program mode

Editing Operations 

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Operation Differences of Manual Mode and Program Mode

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Setting the Patch Level and Patch Name

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18

Setting the ZNR Threshold

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Using the Expression Pedal (RTM function)

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PEDAL WAH/PEDAL PITCH Key

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Effect Types and Parameters 

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About module and Effect Types 

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COMP/OD/ENV module

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DRIVE module

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EQUALIZER module

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PEDAL module

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MODULATION module

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DELAY/REVERB module

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Other Functions 

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All Initialize

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Adjusting the Expression Pedal

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Troubleshooting 

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Specifications 

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Patch List 

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Creating Your Own Sound 

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Operation Manual

Summary of Contents for GFX-4

Page 1: ...ect the store target patch 3 Select whether to store or swap the patch 4 Carry out the store swap process Operation Guide 4 Using the Tuner Bypass Mute Function 14 1 Set the GFX 4 to bypass mute 2 Tune your guitar 3 Adjust the reference pitch of the tuner 4 Return to program mode Editing Operations 16 Operation Differences of Manual Mode and Program Mode 17 Setting the Patch Level and Patch Name 1...

Page 2: ... adapter before moving the GFX 4 Safety Precautions Usage Precautions 2 ZOOM GFX 4 Safety Precautions Usage Precautions 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 Warning Caution This symbol indicates explanations about dangerous matters If users ignore thi...

Page 3: ...e pickup or integrated preamp your instrument will sound its best The OUTPUT MONO jack uses analog bypass with a mechanical switch so that the output in bypass mode is not subject to any kind of digital signal processing Simple and intuitive operation Thanks to three FX panels the GFX 4 can be operated like a series of compact effects Foot switches are convenient for turning effects on and off and...

Page 4: ...e unit is always in this mode after power is turned on The mode is used for switching patches and for editing the currently selected patch Manual mode This mode lets you switch modules on and off operating the unit in the same way as a compact effect with the knobs and foot switches on the FX panels Store mode This mode serves for storing patches edited in program mode or manual mode in the memory...

Page 5: ...NCEL key LED GROUP BANK indicator Display Module keys LEDs COMP OD ENV DRIVE EQUALIZER PEDAL MODULATION PEDAL WAH PEDAL PITCH DELAY REVERB keys TYPE DOWN UP key Parameter knobs Foot switches 1 3 LEDs Expression pedal ACTIVE NORMAL switch INPUT jack OUTPUT MONO jack OUTPUT STEREO PHONES jack MASTER LEVEL knob POWER switch AC adapter connector FX panel 1 3 BANK foot switch ...

Page 6: ...EREO jack When connecting the GFX 4 to a hi fi system or a multi track recorder MTR activating the built in amp simulator p 7 is recommended The ACTIVE NORMAL switch should be set to NORMAL when using a conventional passive guitar and to ACTIVE when using an active type guitar with high output pickup or built in preamplifier Wind the AC adapter cable around the hook as shown in the illustration to...

Page 7: ...amp simulation St Stack amp simulation The current setting can be checked on the GROUP BANK indicator 3 Use the keys to call up the indication CABI on the display and use the keys to select the cabinet simulator type The following CABTYP settings are available oF Cabinet simulator is turned off CABDPT parameter is also inactive C1 Combo amp cabinet 12 speaker x 1 C2 Combo amp cabinet 12 speaker x ...

Page 8: ...n on the power Turn power on in the order GFX 4 amp playback system Select the patch To switch patches within the same bank simply press one of the foot switches 1 3 whose LED is not currently lit In program mode foot switches 1 3 serve for patch switching The LED of the foot switch corresponding to the current patch is lit Group Bank Patch name Lit when user patchis selected Lit when preset patch...

Page 9: ...y preset patches A b C d Each push of the keys switches banks and groups in the order A0 A1 A2 A3 A4 b0 b1 etc Switching between user patches and preset patches is not carried out Select the group To switch to a different group use the keys or the keys In either case the actual patch is switched only after you press one of the foot switches 1 3 For example when group A is currently selected the BA...

Page 10: ...ant to edit When a module is set to off it cannot be edited Turn the module on first To toggle the selected module between on and off press the FX panel key corresponding to that module When module is off When module is on COMP OD ENV DRIVE EQUALIZER modules PEDAL MODULATION modules FX panel 3 DELAY REVERB modules FX panel 2 FX panel 1 In program mode the display will revert to its original condit...

Page 11: ...the selected module use the three knobs on the FX panel corresponding to the module When the EQUALIZER module is selected only one effect type is available Therefore the TYPE DOWN UP keys are inactive Any changes that you make here are only temporary When you select a different patch in program mode the settings will revert to the original condition If you have made changes you wish to keep you mu...

Page 12: ...the display The GROUP BANK indicator shows the group bank that will be used as a target for storing or swapping When SWAP is selected data are changed as follows Store target patch data original patch number Currently selected patch data Store target patch number Switch the GFX 4 to store mode In program mode or manual mode press the STORE key Preset patches are read only and cannot be overwritten...

Page 13: ...Select the desired action It is also possible to use the BANK foot switch to select the store target bank Use the key The store swap process is carried out and the unit reverts to the same condition as before the store mode was activated When wishing to cancel the process press the MANUAL CANCEL key instead Carry out the store swap process Press the STORE key once more Select whether to store or s...

Page 14: ...cation MT 440 is shown on the display Set the GFX 4 to bypass mute When the GFX 4 is in program mode press and release the foot switch of the currently selected patch the switch whose LED is lit Tune your guitar Play the open string you want to tune and watch the GROUP BANK indicator For tuning always play a single note If you play a chord the pitch will not be detected correctly While the GFX 4 i...

Page 15: ...r A 440 Hz If desired you can change the reference pitch in 1 Hz steps over the range from 435 center A 435 Hz to 445 center A 445 Hz Adjust the reference pitch of the tuner Use the keys The GFX 4 returns to the program mode Return to program mode When tuning is completed press any foot switch The reference pitch is reset to 440 when the unit is turned off and on again Pitch is high Pitch is corre...

Page 16: ...ain You can also switch between on and off by pressing the module key of the module whose LED is flashing The PEDAL module serves for making expression pedal settings It is not a regular effect and can therefore not be turned off 4 To switch the effect type of the selected module use the TYPE DOWN UP keys on the corresponding FX panel For example when switching a module from on to off the module L...

Page 17: ...ore the patch as required If you call up another patch in program mode without storing the current patch any editing changes will be lost Parameter name Lit when parameter was changed 17 ZOOM GFX 4 Editing Operations Operation Differences of Manual Mode and Program Mode When the MANUAL key is pressed while the GFX 4 is in program mode the unit switches to manual mode Pressing the key again switche...

Page 18: ...evel are equal The current setting is shown on the GROUP BANK indicator 3 Use the keys to adjust the patch level 4 Use the keys to bring up the patch name on the display This display allows changing the patch name The flashing character is the one that is currently selected for editing 5 Use the keys to select the character to be edited and change the character with the keys The following alphanum...

Page 19: ...o options 0 Toggle RTM controlled module on off status 1 Switch between program mode and manual mode Depending on which knob is operated the parameter name appears on the display and the current setting is shown on the GROUP BANK indicator To use the expression pedal as volume pedal in bypass mode the stereo output of the GFX 4 must be used If the mono output is used playback system connected only...

Page 20: ...ession pedal in real time You can select oF off UP dn down Hi high or Lo low When a setting other than oF is selected operation is the same as for EP MOD 6 Make sure that modules selected in step 5 are set to on If required switch the effect type used in the module The parameter controlled by RTM depends on which effect type is currently selected for the module For details see the section Effect T...

Page 21: ...CHO The COMP OD ENV module can also be located after the DRIVE module if an effect type including the POSITION parameter is selected in the COMP OD ENV module The MODULATION module can also be located before the DRIVE module if an effect type including the POSITION parameter is selected in the MODULATION module PARAMETER 1 PARAMETER 2 PARAMETER 3 TYPE 1 COMP SENS ATTACK LEVEL Compressor 1 10 1 10 ...

Page 22: ...ugh distortion and superb tone TYPE 7 LEAD Parallells the ZOOM lead guitar sound modern with outstanding drive TYPE 8 METALZ Simulates intense Heavy Metal dual gain distortion TYPE 9 ZMD 1 Ultra high gain metal super distortion over the edge TYPE 10 USBLUE Full range vintage amp distortion picking intensity varies the overdrive TYPE 11 BRDRV The British Invasion vintage tube sound that started it ...

Page 23: ...AGE 2 RTMSET EP DRV EP MOD EP D R RTM Settings oF on oF UP dn Hi Lo oF UP dn Hi Lo Using the RTM function the DRIVE MODULATION or DELAY REVERB module can be controlled with the expression pedal Determines whether to control a DRIVE module parameter in real time with the expression pedal When the effect type ACOSIM is selected the TOP parameter is adjusted When another effect type is selected the G...

Page 24: ... with reversed phase TYPE 4 VIBRAT DEPTH RATE BAL Vibrato Step 0 50 1 50 0 50 This is a vibrato effect that periodically varies the pitch Adjusts the effect depth Adjusts the modulation rate Adjusts the mixing balance between effect sound and original sound Higher values result in stronger effect sound TYPE 5 STEP DEPTH RATE FB 0 50 1 50 0 50 This is a special effect with step like filter characte...

Page 25: ...e pitch shift amount in semitone steps Adjusts the effect sound character Adjusts the mixing balance between effect sound and original sound Higher values result in stronger effect sound TYPE 11 DETUNE DEPTH TONE MIX 10 1 1 10 0 10 0 50 This effect mixes a slightly pitch shifted component to the original sound resulting in a chorus effect with only slight modulation Adjusts the effect sound detuni...

Page 26: ... pitch shifter controlled by the pedal Selects the connection position of the MODULATION module The following two settings are available bF Before the DRIVE module AF After the EQUALIZER module Selects the pedal pitch type Adjusts the effect sound character TYPE Pedal pitch type 1 2 3 4 5 0 cent 0 cent 0 cent 0 cent 0 cent 100 cent 1 octave 2 octave 1 octave 2 octave 6 7 8 9 10 Doubling 1 octave o...

Page 27: ...ound Press Record Delay time Repeat playback Repeat playback By selecting PP DLY or ECHO as the effect type in the DELAY REVERB module and setting parameter 2 to Hd or Hs a patch can use the hold delay function where the foot switches serve to control recording and playback of a phrase Select the above type of patch in manual mode and press foot switch 3 to start recording When foot switch 3 is re...

Page 28: ... turning on power to the unit The indication MIN appears on the display 2 With the expression pedal fully raised press the STORE key The display indication changes to MAX 3 Push the expression pedal fully down and then lift your foot off the pedal the pedal goes back a little Press the STORE key at this point The adjustment is completed and the unit returns to the program mode Push strongly so tha...

Page 29: ...rrectly to INPUT jack and playback equipment to OUTPUT jack Make connections as described in Getting Connected Is shielded cable defective Try using another cable Is amplifier turned on Are level controls for instrument and amplifier set to proper values Turn amplifier on and adjust volume to proper level Is GFX 4 set to mute condition Cancel the mute condition For some patches the expression peda...

Page 30: ...e sound with pedal wah and reverse effect Metal sound pedal controls pitch shifter mix For clean cutting sound Eddie s famous driven sound Boost sound with high gain distortion effect Real amplifier sound Modern Fuzz tone Hard rock sound Distortion sound for standard rock style GROUP BANK PATCH NAME MODELING 0 1 2 3 4 c 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 BZ TAK VAIDRV CHODRV VAI LD GARY ZAK SCOHEN PATO...

Page 31: ...tion acts upon the entire sound The GFX 4 provides 2 effects in the COMP OD ENV module and 4 effects in the MODULATION module for which the connection point can be switched Sample Patches C01 BZ TAK Setting example for inserting wah as equalizer before distortion C33 SATCH Setting example for inserting phaser as equalizer before distortion Using vintage effect sounds The sound of many vintage effe...

Page 32: ...ZOOM CORPORATION NOAH Bldg 2 10 2 Miyanishi cho Fuchu shi Tokyo 183 0022 Japan PHONE 81 42 369 7116 FAX 81 42 369 7115 Web Site http www zoom co jp Printed in Japan GFX 4 5000 ...

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