GFX4 - Guitar Effects ZOOM - Free user manual and instructions

USER MANUAL GFX4 ZOOM

caui ‘The meanings of these symbols are as follows: Safety Precautions his manual, symbols are used to highlight warings and + Handling tions for you to read so that accidents can be prevented. Since the GFX-4 is a precision electronic device, avoid PAN applying excessive force to the switches and buttons. Also take care not to drop the unit, and do not subject it suopneseig eBesn/suopneoeid A1ojeS |] Warning _this symbol and handle the device the wrong to shock or excessive pressure. This symbol indicates explanations about extremely dangerous matters. If users ignore + Afterations way, Serious injury or death could result. Never open the case of the GFX-4 or attempt 10 modify the product in any way since this can result in damage

This symbol indicates explanations about to the unit. dangerous matters. If users ignore this Éfon SymMbol and handle the device the wrong + _Connecting cables and input and output jacks way, bodily injury and damage to the You should always turn off the power to the GFX-4 and equipment could result. on all other equipment before connecting or disconnecting any cables. Also make sure to disconnect all cables and Please observe the following safety tips and precautions to the AC adapter before moving the GFX-4. ensure hazard-free use of the GFX-4. + Power requirements +_The GFX-4 is powered by the supplied AC adapter Amy T° prevent malfunction and safety hazards, Do not use any other kind of AC adapter. + When using the GFX-4 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-4 in environments where it will À be exposed 10: Gex + Extreme temperature + High humidiy or moisture + Excessive dust or sand + Excessive vibration or shock Usage Precautions + Electrical interference + Cleaning For safety considerations, the GFX-4 has been designed to Use a soft, dry cloth to clean the GFX-4. If necessary, provide maximum protection against the emission of slightly moisten the cloth. Do not use abrasive cleanser, electromagnetic radiation from inside the device, and wax, or solvents (such as paint thinner or cleaning alcohol), powerful electromagnetic waves should not be placed near the GFX-4, as the possibility of interference cannot be Please keep this manual in a convenient place for ruled out entirely future reference. With any type of digital control device, the GFX-4

included, electromagnetic interference can cause malfunctioning and can corrupt or destroy data. Care should be taken 10 minimize the risk of damage ZOOM GFX-4

Thank you for selecting the ZOOM GFX-4 (simply called the "GFX-4" in this manual) The GFX-4 is a sophisticated Guitar Effects Processor with the following features. Versatile array of effects The Variable Architecture Modeling System (VAMS) adapts the internal configuration of the unit to achieve exactly the desired sound. The GFX-4 includes vintage effects such as famous s ultra- overdrive, distortion, compressor, and phaser sounds of the seventies and eighties, as well modern processing functions. Up to eight effects can be freely combined for simull Laneous use. Great choice of distortion sounds In addition to traditional guitar amplifier characteristics, the GFX-4 uses modeling technology to duplicate the sound and operation feel of celebrated compact distortion effects. Well-proven combinations such as booster + distortion or compressor + overdrive can be established quickly and easily. By combining distortion effects with the built-in amp and cabinet simulator, you can get optimum sound also for line out recording Designed to get the best out of any guitar The ACTIVE NORMAL switch provides quick and precise impedance and level matching for any guitar. Whether you have a passive pickup or use an active 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 turing effects on and off, and sound parameters can be adjusted quickly with rotary controls. The E: With the GE Edit function is a snap to use also during a performance. , pla ng your instrument and editing the sound is one seamless operation. Extensive patch library A combination of effects can be assigned a name of up to six characters and stored as a patch in the memory of the unit. There are 60 user patches (4 groups x 5 banks x 3 patches) which can be freely rewritten, plus 60 preset patches that make the unit ready to use right out of the box. The possibilities are almost endless. Great for use on stage The GFX-4 incorporates an expression pedal that can serve as real-time effect controller or volume pedal. The easy-to-read 6 names and settings at à gl acter display and 2-character indicator make it easy to check patch nce, which is helpful during a live gig. In order to get the most out of this sophisticated product, please read this manual carefully before use. We recommend that you keep the manual at hand for future reference. ZOOM GFX-4

Terms Used in This Manual This section explains some important terms that are used throughout the GFX-4 documentation. Module A "module" is a section that works like a stand-alone compact effect device for tailoring certain aspects of the sound. In the GFX-4, you can use the six modules COMP/OD/ENV, DRIVE, EQUALIZER, PEDAL, MODULATION, and DELAY/REVERB as well as the ZNR (Zoom Noi Simulator) simul Reduction) + AMP SIM (Amp neously. Patch — . INPUT. —>{courronenv)->{pRvE }{eouauzer)[ PEDAL }{ MODULATION }--{peuvaevens) #7 OUTPUT IENUEW SIUL UI peSN SULSL |] Module Effect types and parameters Within each effect module, there are various effect types which are specific processing functions. The various settings of the currently selected effect typ called parameters. By selecting an effect type and varying the parameters, you can create a new effect. Patch/group/bank Effect module combinations and effect parameter settings are stored in memory as "patches". The GEX-4 can hold a total of 120 patches. These are divided into 60 user patches which are read/write, and 60 read-only preset patches. Both the user patches and preset patches are divided into four groups (A, b, €, d). Each group has 5 b ks numbered from O - 4, and each bank has 3 patches. To use a patch in the GFX-4, you first call up the bank and then use the three foot switches 1 - 3 to select the patch. User patches Preset patches GROUPE GROUP À GROUP À Modes Operation of the GFX-4 is divided into five main modes, as listed below +_ Program mode This is the basic operation mode of the GEX-4. The unit is always in this mode after power is turned on. 4 ZOOM GFX-4 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 of the unit. It also allows changing the store positions of user patches. +_Bypass/mute mode When the GEX-4 is in the bypass condition, effect processing is temporarily turned off and only the original sound is heard. In the mute mode, all sound is tumed off and the built-in chromatic tuner can be used. + Special mode This mode serves for making amp simulator and ZNR settings, retuming the GFX-4 to the ch name and patch level settings, and for tory default condition. RTM (real-time modulation) The RTM function allows use of the expression pedal 10 adjust DRIVE, MODULATION, or DELAY/REVERB module parameters or the volume in real time. For example, you might use the pedal during a performance to vary the reverb mix balance or adjust wah intensity with your foot. The module, effect type, and parameter, as well as the parameter change direction can be set separately for each patch.

Controls and Fun Top Panel STORE key ZNR key & LED MANUAL/CANCEL key & LED Module keys & LEDs (COMP/OD/ENV, DRIVE, EQUALIZER, LEVEL/NAME (level name) PEDAL, MODULATION, PEDAL WAH/PEDAL PITCH , key & LED DELAY/REVERE) AMP SIM (amp simulator) Expression pedal Key & LED GROUP/BANK indicator Al v 4 bkeys Display BANK foot switch [FX panel 1 - 3] TYPE DOWN/UP key Oo 0 © © Parameter knobs — (D OO! 10001 1000! © El El CE | Foot switches 1 - 3 & LEDs Rear Panel OUTPUT STEREO/PHONES jack OUTPUT MONO jack INPUT jack MASTER LEVEL knob ACTIVE NORMAL switch AC adapter connector POWER switch ZOOM GFX-4 suonauns pue sjonuco

peyoeuuoo Sue |] Getting Connected Guitar amp/instrument connection ‘To use the output of the GFX-4 in mono, Guitar amplifier connect the OUTPUT MONO jack. To use the £ TE output of'he GFX-4 in stereo, connect a Y cable to the OUTPUT STEREO jack. ‘When connecting he GFX-4 to a hi-fi system Headphone | or a mul track recorder (MTR actvating = the butin amp simulator (+ p. 7) is ( n recommended guitar

The ACTIVE NORMAL switch should be set Lo “NORMAL" vien using à conventional passive guitar and to AC adapter ACTIVE" uen using an active type guitar with high-output pickup or buit-in Wind the AC adapter cable preampifier around ie hack 28 shown in the ilustration to guard against NORMAL inadverent disconnection ACTIVE About the Mono Output The GFX-4 has two output jacks labeled OUTPUT STEREO and OUTPUT MONO. When the OUTPUT MONO jack is used, a mechanical relay switch operates in bypass mode, which results in true bypass (analog bypass where the signal is not subject to any kind of digital process ng). M When using effects The OUTPUT MONO jack supplies only the lefi-channel INPUT + less our T “we

signal. This is suitable for example for connection 10 a guitar amp or another effect device. ! ! ! Volume Pedel Master Level! = When using Bypass When the GEX-4 is in bypass mode, the analog input Signal appears unchanged at this jack, due to the action of a switching relay. (This means hat there is absolutely no sound quality change caused by digital processing.) Note that the expression/volume pedal and the MASTER LEVEL knob have no effect on the signal in this condition. When wishing to use the volume pedal and master level control also in bypass mode, use the OUTPUT STEREO jack. 6 ZoOM GFx-4

Power Up À: Verity that the AC adapter, instrument, and amplifier are correctiy connected to the GFX-4.

2. Turn the system on in the order GFX-4 +

amplifier. Using the Amp Simulator When the GFX-4 is connected to a hi preferences. À: immediately after turning on the GFX-4, press the AMP SIM key. The AMP SIM key LED lights up, showing that amp simulator setup is possible

2. Use the 4 / à keys to call up the indication

*AMPTYP* on the display, and use the À / w keys to select the amp simulator type. cour maux The following AMPTYP settings are available. OF: Amp simulator is turned off. (CABTYP and CABDPT parameters are also inactive.) Cb: Conventional combo amp simulation bC: Bright combo amp simulation St: Stack amp simulation The current setting can be checked on the GROUP/BANK indicator

3. Use the / à keys to call up the indication

"CABI" on the display, and use the À / v keys to select the cabinet simulator type.

3. While playing your instrument, adjust the volume

control on the amplifier, the level control of the instrument, and the MASTER LEVEL knob of the GFX-4 to a suitable position. stem or multi-track recorder (MTR), set up the amp simulator to match your ao mu CAT The following CABTYP settings are available. OF: Cabinet simulator is turned off. (CABDPT parameter is also inactive.)

2 Combo amp cabinet (12" speaker x 1)

Combo amp cabinet (12° speaker x 2) St: Stack amp cabinet (10” speaker x 4) ML: Simulates the sound of a stacked array of St type cabinets. 4, Use the 4 / D keys to call up the indication “CABDPT* on the display, and use the A / w keys to adjust the intensity of the cabinet simulator effect. The setting range is 0 - 10. Higher values result in stronger cabinet sound. GROUP BAM 5, When the setting is complete, press the STORE key two times. ‘The amp simulator setting is stored. This setting applies to all patches. ZOOM GFX-4 7 suonedoru ÎQ

In the factory default condition, the memory of the GEX-4 contains 60 rewritable user patches and 60 read-only preset patches. This section shows you how to select patches while playing your instrument. Try it out for yourself, to see what the GFX-4 can do. O Turn on the power Turn power on in the order GFX-4 + amp/playback system. The GFX-4 automatically goes into program mode. In this mode, the display and the GROUP/BANK indicator show the following information. GROUP_ BANK Group — ,—, ——Bank Patch name Cv T0, nggi—— Lit when user GF A HE W patchis selected Lit when preset patch is selected (3) Select the bank To choose a patch from a different bank, use the BANK A foot switch to select the bank and then use foot switches 1 - 3 to 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. CR) In program mode, foot switches 1 - 3 serve for patch switching. The LED of the foot switch corresponding to the current patch is lit. When the GFX-4 is in manual mode (MANUAL key LED li), foot switches 1 - 3 turn the various modules on and off.

Operation Guide 1 Selecting Patches for Playing For example, when group À is currently selected, the BANK A foot switch will move through the banks as follows: AO —» A1-+ A2-+ A3-+ A4-+ AO etc. The actual patch is switched after you press one of the foot switches 1 - 3 a selecte (AODIA lbe(AU}eS [RO RR 1] A1

O Select the group To switch to a different group, use the/}keys ortheA/wkeys. Each push of the 4/} keys switches groups in the order user patches A--b--C--d followed by preset patches A--b-C-—

On LIT TN 11 ABREERIE De dE Each push of the A /w keys switches banks and groups in the order AO + A1 ++ A2 + A3 ++ A4++ b0 ++ bi etc. {Switching between user patches and preset patches is not carried out.) AROET ET In either case, the actual patch is switched only after you press one of the foot switches 1 - 8. 9 Use the pedal The built-in expression pedal of the GFX-4 lets you adjust the volume or effect parameters in real time. Move the pedal while playing your instrument to try out some of the possibilities. ZOOM GFX-4 9 epno uoneudo

epino uopeedo |] Operation Guide 2€ The GFX-4 allows you to edit patches both in program mode and manual mode. ng Patches In program mode, the displa will revert to its original condition about 5 seconds after the last editing operation was performed. In manual mode, the display remains unchanged after the last operation. ual mode, the foot switches 1 - 3 ci be used to switch effects on and off To activate manual mode, press the MANUAL key in program mode. (4) Select module to edit Use the module keys to select the module that you want to edit. The LED of the selected module flashes in red. The display shows the following information. When module is on When module is off FMC -NCE LU IP me OF Fm £) 6) 9 I w/lm/ 187) When a module is set to off, it cannot be edited. Turn the A module on first. ——— (2) Switch effect modules on and off To toggle the selected module between on and off, press the FX panel key corresponding to that module. comP/oD/Env| DRVE, mob Aon | |PELAYREVERS In manual mode, module on/off EQUALIZER modules modules D switching can also be performed modules with foot switches 1 - 3. LE The modules are assigned to FX n panels 1 - 3 as shown at right. FX panel 3 e] e

K —— », 10 zoom GFx-4

(3) Select the effect type To switch the effect type in the selected module, use the TYPE DOWN/UP keys in the FX panel of the module. Effect type hi M WE NL MP mme mL Lit when type was ITA

IN changed 9 (6) 67. Approximate setting of parameters 1 - 3 When the EQUALIZER module is selected, only one effect type is available. Therefore the CT72 DRIVE pe] TYPE DOWN/UP keys are inactive. EE n PO L >, Edit the effect parameters epno uoneudo To edit the parameters of the selected module, use the three knobs on the FX panel corresponding to the module. Which parameters are assigned to the knobs depends on the currently selected module and effect type. Parameter name Lit when parameter only was changed 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 must store the patch (-+ p. 12). L D, ZOOM GFX-4 11

Opera on Guide 3 Storing/Swapping Patches Unless you store an edited patch in the memory of the unit, the changes you je made will be lost when you select another patch. Don't forget to store the patch when you want to keep your ci nges. Switch the GFX-4 to store mode In program mode or manual mode, press the STORE key. The name of the currently selected patch and the indication "STORE" or "SWAP" are shown alterately on the display. The GROUP/BANK indicator shows the group/bank that will be used as a target for storing or swapping. GROUP Bu GROUP BANK epino uopeedo |] Store Preset patches are read-only and cannot be k 1 overwritten. If the store mode is activated while a H H preset patch is selected, the user patch with the same group/bank/patch number is automatically selected as store target When "SWAP" is selected, data are changed as follows. Store target patch data -+ original patch number Currently selected patch data -» Store target patch number 12 zoom GFx-4

Operation Guide 3 Storing/Swapping Patches [2] Select the store target patch Use the €/}/A/vw keys, and foot switches 1 - 3 to select the group, bank, and patch number that is to be used as a store target. crour sant It is also possible to use the BANK A foot switch to select the store target bank. Select whether to store or swap the patch epno uoneudo Use the 4 key. Each push of the € key toggles between the "STORE" and "SWAP" setting. Select the desired action. If the original patch was a preset patch, U the “SWAP* setting is not available. (4) Carry out the store/swap process Press the STORE key once more. 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 insteadi ZOOM GFx-4 13

Opera on Gu de 4u g the Tuner (Bypass/Mute) Function epino uopeedo |] The GFX-4 has a built-in auto-chromatic tuner for guitars. To use the tuner function, the built-in effects must be bypassed Ctemporarily tumed off) or the unit must be muted (ori al sound and effect sound turned off). 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). Pressing and immediately releasing the foot switch sets the unit to the bypass condition, and the indication "BP 440" is shown on the display. Je un When GFX-4 is in manual Wu) mode, press and immediately release BANK A switch Pressing and holding the foot switch for more than 1 second sets the unit to the mute condition, and the indication "MT 440" is shown on the display. When GFX-4 is in manual mode, press BANK À switch for about 1 second. While the GFX-4 is in bypass mode, the expression pedal cannot be used as a volume pedal for the guitar OUTPUT MONO jack. K », Play the open string you want to tune, and watch the GROUP/BANK indicator. The GFX-4 automatically detects the pitch and the 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. 14 zoom GFx-4

le 4 Using the Tuner (Bypass/Mute) Fun (3) Adjust the reference pitch of the tuner Use the A/Vkeys. After the GFX-4 is turned on, the tuner reference pitch is always "440" (center À = 440 Hz). If desired, you can change the reference pitch in 1 Hz steps over the range from "435" (center À = 435 Hz) to "445" (center À = 445 Hz). The reference pitch is reset to "440" when the unit is turned off and on again.

(4) Return to program mode When tuning is completed, press any foot switch. epno uoneudo The GFX-4 returns to the program mode.

When the GROUP/BANK indicator shows the desired note, perform fine tuning while watching the display. Pitchis Pitchis Pitchis high correct low (= _ —, i crour afuux : ET FO + 0 FA 1 SX = Indication turns faster the more the pitch is off. ZOOM GFX-4 15

Editing Operations suonesedo Sup |] This section des. The basic steps for patch editing are as follows. = While the GFX-4 is in program mode, select the À: While the GFX-4 is i de, select th patch you want to edit. Module LEDS The module LEDs show the status of each module within that patch. COMP/OD/ENV, DRIVE, EQUALIZER module LEDS come] [one | [eux] lonrenv Or Oo © Module LED Module FX pedal 1 status on/off status | _assignment Litred Lit orange Out COMP/OD/ENV, DRIVE, and EQUALIZER share the FX pedal 1 which can be assigned to any of these modules. However, when the assigned module is off (module LED li in green), operating the FX pedal 1 only switches module on or off. MODULATION, DELAY/REVERB module LEDS moouianen, | [peux roacria) | Module LED Module status lon/off status Litred On +_The MODULATION and PEDAL modules share the FX pedal 2. Normally, the FX pedal 2 controls the MODULATION module, but when the PEDAL module is selected as operation target, the FX pedal 2 controls the PEDAL module. The PEDAL module LED is flashing, +_ The FX pedal 3 is permanentiy assigned to the DELAY/REVERB module. lt always controls the DELAY/REVERB module.

2. Press one of the module keys (COMP/OD/ENV,

DRIVE, EQUALIZER, PEDAL, MODULATION, DELAY/REVERE) to select the target module. ‘The LED of the selected module flashes, and the display shows the name of the effect rype selected for that module f the module is on), or "-OFF--" (if the module is off 16 zoom GFx-4 ibes the various editing operations that can be carried out with the unit

LUI Lil Modul 5 (0 08) 7 DU Modus cf

3. To toggle the selected module between on and

off, press the module key of the corresponding FX panel again.

RQ 92 can iso suiteh between on and of by INT} pressing the module key of the module whose LED is flashing The PEDAL module serves for making expression pedal settings. i is not a regular effect and can therefore not be tumed 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 LED changes from flashing red to flashing green The assignment of EX panels 1 - 3 to the modules is as follows. + FX panel 1: COMP/OD/ENV, DRIVE, EQUALIZER module + FX panel 2: PEDAL, MODULATION module + FX panel 3: DELAY/REVERB module ‘The name of the currently selected effect type is shown on the display Effect type name VINCM eme [W LNCIE mm ml Lit when type re) & [87 | was changed um) 184 sonate sang of parameters + - 3 Res en pra

+ Uniike other modules, the EQUALIZER module has only one effect type. Therefore pressing the TYPE DOWN/UP keys has no effect. (The display shows only EQUALIZER "HIGH". + When a module that is currently set to off is selected, the effect type and parameter cannot be changed. For the effect types PDLWAH (pedal wah) and fun) PDLPIT (pedal pitch) in the MODULATION module ony, it is possible to directiy call up the editing display by pressing the PEDAL WAH/PEDAL PITCH key. For details, see page

600 |: STE Lit when parameter was changed You can also use the 4/> keys and A/V keys to HINT) select the effect type and alter the parameter value. The 4} keys serve to bring up the effect type or parameter 1 - 3, and the A/V keys serve 10 adjust the value.

6. Use the module keys to select another module

and adjust the effect type/parameter value and on/off setting in the same way.

7. When editing is completed, store the patch as

required. you call up another patch in program mode without storing the current patch, any editing changes will be lost. 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 switches back to program mode.) In manual mode, the foot switches 1 - 3 on the FX panels serve to turn modules on and off. This lets you change the sound of the currently selected patch in a way similar to using a compact effect. Operation differences in manual mode and program mode are listed below Manual mode Program mode Foot switches Module LED Module LED of last edited module flashes Display and display shows parameter name/effect type name. GROUP/BANK indicator GROUP/BANK | shows parameter value. indicator Switch respective module on and off Module LED indication of last edited module, display and GROUP/BANK indicator function are the same a: program mode, but display reverts

program mode initial display after about 5 econds. Switch patches

To activate Press foot switch of currently selected patch bypass (mute) | Press BANK A switch number (LED it) mode ZOOM GFx-4 17 suonedo Surupa

suoneedo Buripa |] Setting the Patch Level and Patch Name When a patch has been completed, ou can give it a name of up to six characters, and adjust the patch level (the final output level for each patch). À: in manual mode or program mode, press the LEVEL/NAME key.

2. Use the 4/3 keys to bring up the indication

*PATLVL" on the display. This display allows setting the final patch level in the range from 1 - 50. (A patch level setting of 40 means that the input level and output level are equal.) The current setting is shown on the GROUP/BANK indicator. roue maux

3. Use the A/Y keys to adjust the patch level.

4, Use the 4/} 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 4} keys to select the character to be

edited, and change the character with the A/W keys. The following alphanumeric characters and symbols are available. sell clilalsl-[lolilels CINÉ ES PATSRRERE) 11S5/6/71|18|4/21- d|AÏR HF EEERTETE clalelelslalzlulelc{mn elolefrfelufcpi{efclufs op|glr|Ss|r|Iulv|[nwlx|v}z otre itviwlrTz

6. When the patch level and patch name have been

set, press the LEVEL/NAME key. ‘The GEX-4 returns to the previous mode. If required, Store the patch (-+ p. 12 - 13). you call up another patch in program mode without storing the current patch, any editing changes will be lost Setting the ZNR Threshold The GEX-4 incorporates the ZNR (ZOOM Noise Reduction) circuit which is highly effective in minimizing noise in playing pauses. You can set the ZNR threshold individually for each patch À: in manual mode or program mode, press the ZNR key. The indication "ZNR' appears on the display, and the current setting (OF, 1 - 10) is shown on the GROUP/BANK indicator.

2. Use the A/Y keys to adjust the ZNR threshold

(sensitivity). Choose the value which yields the best noise reduction ing the sound to be eut off abruptly. The setting "OF" means that ZNR is turned off. without cau 18 zoom GFx-4

8. When the threshold has been set, press the ZNR

key once more. ‘The GEX-4 returns 10 the previous mode. If required, store the patch. you call up another patch in program mode without storing the current patch, any setting changes will be lost

Using the Expression Pedal (RTM function) The GFX-4 has an integrated expression pedal that can be used to adjust the volume or effect parameters in real time. This function is called RTM (Real Time Modulation). This section explains how to make RTM settings and use the function.

1. Select the patch for which you want to make

RTM settings, and press the PEDAL module key in manual mode or program mode. The PEDAL module display is shown. This module serves for making expression pedal settings. EX Ian 1 Es ER 2 FTM setina can be made in manual mode or INT) program mode. However, if the PEDAL module Key is pressed in program mode, the unit reverts to the original condition if no control is operated for 5 seconds.

2. Use the pedal module key to bring up the

indication "EXPVOL" on the display. This display lets you make settings for using the expression pedal as a volume pedal and for selecting the function of the assignable switch built into the expression pedal.

3. Use knobs 1 - 3 of FX panel 2 to set the

following parameters. + Parameter Knob 1 -. EXPVOL. Determines whether the expression pedal is used as a off) or volume pedal in this patch. You can select "OF" on. + Parameter Knob 2 -- MINVOL. When the “on” setting is selected with knob 1, you can setthe minimum volume (the volume when the pedal is fully raised) with this knob. The setting range is O - 9 + Parameter Knob 3 .…EXP-SW ‘The expression pedal incorporates an assignable switch electronic switch that is toggled between on and off when the pedal is fully depressed). This knob lets you select the function of the switch from the followin 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. Gtour sam Expo AU LI von on ee To use the expression pedal as volume pedal in pe bypass mode, the stereo output of the GFX-4 must be used. the mono output is used {playback system connected only to the OUTPUT MONO jack), the expression pedal does not function as a volume pedal, regardiess of the EXPVOL parameter setting.

4. Use the pedal module key to bring up the

ation “EP-DRV" on the display. This display allows you to select the effect module to be adjusted in real time with the pedal. RTM control is possible for the DRIVE, MODULATION, and DELAY/REVERB modules. (Several modules can be selected.)

5. Use knobs 1 - 2 on the FX panel 2 to set the

following parameters. + Parameter Knob 1 .… EP-DRV Determines whether to control the DRIVE module with the expression pedal in real time. You can select "OF" (off) or “on”. + Parameter Knob 2 … EP-MOD Determines whether to control the MODULATION module with the expression 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 as follows. ZOOM GFx-4 19 suonsedo Sunpa ÎÎ

Value programmed A in patch When the effect type of the MODULATION module is PDLPIT (pedal pitch) or PDLWAH {pedal wah), the “Hi' setting has the same effect as "UP" and "Lo" has the same effect as “an”. + Parameter Knob 3-… EP-D/R Determines whether to control the DELA Y/REVERB module with the expression pedal in real time. You can select "oF" (of, "UP" 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 ion "Effect Types and Parameters”. details, see the se 7 if required, store the patch, and return to program mode. When you now operate the expression pedal, the respective parameter in the modules selected for RTM will change.

Move pedal When you push the expression pedal fully down, the assignable switch performs the selected function {switching between program mode and manual mode or toggling the module onfoff status) Press doun For example, you may select the DRIVE and MODULATION modules for RTM control and store the patch with one module set to on and the other set to off. you then select the module on/off function for the assignable switch, the module controlled by RTM is switched every time you push the expression pedal fully down. Lg? PEDAL WAH/PEDAL PITCH Key Among the effect types that can be controlled by RTM, the two effect types PDLWAH (pedal wah) and PDLPIT (pedal pitch) in the MODULATION module have a special key. À: in manual mode or program mode, press the PEDAL WAH/PEDAL PITCH keys. ‘The PEDALWAH/PEDAL PITCH key are shortout keys for quickly adjusting pedal wah or pedal pitch. With each push of the key, the edit display for "PDLWAH" and “PDLPIT" is displayed alternately DLUAHm pe) ës 0 #8 |] Lit when type has changed

2. To use the pedal wah effect, select the

*PDLWAH" display. To use the pedal pitch effect, select the "PDLPIT" display. When one of these is selected, the patch setting automatically becomes as follows. 20 2ZO0M GFx-4 + MODULATION module = ON + MODULATION module effect type PDLWAH or PDLPIT + UP if RTMSET display EP-MOD parameter = 0F

8. If required, use the parameter knobs on FX

panel 2 to set the effect parameter. The effect parameter setting procedure is the same as for regular editing. (For information on effect parameters, see page 21.) 4, if required, store the patch, and then return to program mode. When you now operate the expression pedal, the pedal wah or pedal pitch effect is applied.

Effect Types and Parameters In this section, the effect types and parameters in all modules are listed and explained 2Æ This mark indicates that the parameter can be controlled with the RTM function. About Modules and Effect Types The illustration below shows the modules in the patches of the GFX-4, and the effect types that can be selected within each module. DRIVE module (if an effect type Inluding the POSITION DRIVE module (f an effect type including the POSITION ‘The GOMP/OD/ENV module can also be located after the The MODULATION module can also be located before 1he parameter is selected in the GOMP/OD/ENV module) parameter is selected in the MODULATION module) DS. un i 1 INPUT-»|COMPIODIENV | DRIVE }*{[EQUAUZER|—| PEDAL |—[MODULATION]-[DELAY/REVERE} OUTPUT UT CON. OT ACOSN DT SANDEO | | OT VOLSW DT CHORUS OT HAL mue | [eau | LR [éme | |uuco || vœu

PARAMETER 3 Ne —__— comr/| COMP/OD/ENV module OD/ENV | re) Co This is a compressor which keeps the level within a certain range by attenuating high-level signals and boosting low-level signals. ains effect types such as compressor, booster, envelope (auto low attack etc.) © sens 10 | @ ATTACK 10 | @LEVEL 1-10 just the effect de Adjuss the üme interva between Adjusts he ouput level of die module AAdsts ie eflectdepth picking a Sting and Le onset of the FRS ARE IRAN ONE Eliect [Compressor operation] LEVEL |} Lave

||. Compressor JAN [A SOMPreSs 0 | Originalsound + sieur pur sed voeu ÎÎ This is a compressor which attenuates high-level signals and boosts low-level signals. 10|@TONE 0-10 l@LEvEL 1-10 Overdrive sound that works great also as booster. © ca 1-4|[@ TONE 0-10 | @LEVEL 1-10 Adjusts the gain. Adjusts the sound character. Adjusts the output level of the module. ZOOM GFx-4 21

siejewieied pue SedAL 19943 |] TYPE 4 |A-WAH (Auto Wah) ‘This is an auto wah effect which varies the effect depth accor |© SENS 10--1,1-10]@ RESO 1-10 [post “Adiusts the Sensitivity. Positive values | Adjusts the prominence of he wa Select the COMPIOD/ENV module and shift the peak upwrards and negative effect DRIVE module connection sequence, The values shift it dowmwards following two seting are available. bF: COMP/OD/ENV -+ DRIVE

AF: DRIVE-+ COMP/OD/ENV

g to the picking intensity. TYPE 5 SEOMPA (Slowattack) This effect adds a soft attack to each note, depending on the picking intensity. O TIME 1-10 |@ CURVE 1-4 [© posi bF, AF AAdjusts the transient rate of he sound. | Adjusts the transient curve of the sound. | Selects the COMP/OD/ENV module and DRIVE module connection sequence. The following two setting are available. bF: COMP/OD/ENV-» DRIVE,

AF: DRIVE-+ COMP/OD/ENV

prie | DRIVE module re) This module contains mainly distortion type effects such as Fuzz and Overdrive simulating conventional compact effects. In addition, the module also features preamp effects and an acoustic guitar simulator. TYPE 1 |ACOSIM (Acoustic Simulator) Changes the sound of an electric guitar to resemble that of an acoustic guitar. OToP = 1-10|@ Boy Higher values For ts parameter result |” Higher values for dis parameter result | Adjuss the ouput level of he module. in a stronger acoustic guitar character. |_in stronger instrument body sound. TYPE 2 _SCREAM, (Scream) Simulates a vintage overdrive that was extremely popular in America as a booster. TYPE 3 OB (Overdrive) Simulates the "classic" overdrive tone. TYPE 4 DIS +. (Distortion) Simulates a vintage distortion unit that pioneered distortion sound. TYPE 5 DISR (Distortion) Hard distortion British "Stack Style". TYPE6 EUZ2P (Euz27) Vintage “60's" fuzz simulation, rough distortion and superb tone. TYPE 7 MÉEAD (Lead) Parallels the *ZOOM lead guitar sound, modern with outstanding drive. TYPE 8 METAPZ (Metalz) Simulates intense Heavy Metal dual gain distortion. TYPE 9 ZMD-1 (ZOOM Metal Driver 1) Uttra high gain, metal super distortion, over the edge. TYPE 10 AUSBEUE. (US Biues) Full range vintage amp distortion, picking intensity varies the overdrive. TYPE 11 BRDRV. (British.Drive) The ‘British Invasion" vintage tube sound that started it all. 22 ZOOM GFx-4

TYPE 12 ADREMMRE (DRE

Simulates an amp t rade for thrashe: Metal) e strong distortion goes great together with humbucker pickup: TYPE 13 PEVMDRVS (EVPDriver) Simulates a signature amp that has received praise from guitars the world over. OGAN Æ 1-30 is he distortion intensity. @TONE 0-10 {Adjusts the sound character. LEVEL Adjusts the output level of the module. LEQUALIZER |

TYPE 1 SBAND EQ (3-ba Adjusts boos/eut in the high frequency EQUALIZER module This module is a 3-band equalizer for adjusting the tonal character of the sound. nd equalizer) {Adjusts boosteut in the medium frequency range. 12-12 Adjusts boost/eut in the low frequency PEDAL VOLUME O0: PAGE 1 to the assignable switch. VOL-SW _(Volum Determines whether the expression pedal is used as a volume pedal, and determines which function is assigned PEDAL module This module contains the settings for the expression pedal on the unit. nable Switch Settings) Because the PEDAL module is not an effect, it cannot be set to off. Determines for each patch whether the “expression pedal is assigned to volume PAGE 2 RIMSEI Using the RTM function, the DRIVE, M expression pedal. Determines the minimum volume setting when the expression pedal is assigned to volume control. (This is the volume when the pedal is fully raised.) Determines for each patch the function that is assigned to the assignable switch The following two settings are available. 0: Onoff switching of module to which RTM is assigned : PRESET group program mode/manual mode switching can be controlled with the oF, on [1] EP-DRV Determines whether to control à 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 GAIN parameter is adjusted. M Settings) IODULATION, or DELAY/REVERB module @Ep-moD of, UP, dn, Hi, Lo Determines whether to control a MODULATION module parameter in real time with the expression pedal. For details on operation when various settings are selected, see page 19. + Which parameter can be controlled with the pedal is ipreset for each effect type. + When PDLWAH (pedal wah) or PDLPIT (pedal pitch) is selected as effect type for the MODULATION module, operation of HI is equal to UP and Lo is equal to dn. OEP-DR Determines whether to control à DELAY/REVERB module parameter in real time with the expression pedal. For details on operation when various settings are selected, see page19. oF, UP, dn, Hi, Lo ZOOM GFx-4 23

siejewieied pue SedAL 19943 |] MODULATION MODULATION module PEDAL-PITCH| This module contains modulation effects such as chorus, flanger, pitch shifter, etc.

TYPE 1 | CHORUS (Chorus) Chorus effect with clear sound. ObEPTH 0-50 | @RATE 1-50 O mx Æ 0-50] “Adjusts the effect depth. ‘Adjusts the modulation rate Adjusts the effect sound mix: IChorus operation] prrcu PITCH Original sound 0 Effect sound ° RE À TFTRE TYPE 2 CE-CHO (CE Chorus) Simulates a vintage analog chorus characterized by warm, full-bodied sound.

ODEPTH 0-50 | @TONE 0-10

“Adijusts the effect depth “Adjusts the effect sound character. TYPE 3 JÉPANGESERNOER) This effect produces a unique, undulating sound.

ODEPTH 0-50 | RATE <= 1-50 | © RESO 15-15

“Adijusts the effect depth “Adijsts the modulation rate AAdjusts the character intensity. Negative values result in effect sound with reversed phase TYPE 4 IBRAT Wibrate) This is a vibrato effect that periodically varies the pitch. OoEPTH 0-50 RATE << 1-50 | © BAL 0-50 {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 SHER (Step) This is a special effect with step-like filter characteristics. The cutoff is varied in discrete steps at a constant rate, resulting in a sample-and-hold type effect.

ODEPTH 0-50|@RATE << 1-50 |©FB 0-50

“Adijusts the effect depth “Adjusts the modulation rate Adiusts the feedback amount TYPE 6 MNREMOP. (Nremolo) This effect periodically varies the level of the sound. OvEPTH 0-50[ RATE Æ 1-50 [© cuir 0-10 Ad he cet dpi Ad the modulation rate Higher values oui cipped modulation sera waveform, which “emphasizes the modulation. [Tremolo operation] . LEVEL Original sound LEVEL Signal after tremolo effect 24 ZOOM GFX-4

TYPE 7 DEPAM This is a delay effect with a maximum (Delay) delay time of 500 1-50 Adjusts the delay time in 10-ms steps. Adjusts the feedback amount. Higher values result in an increased number of delayed sound components. TYPE 8 PHASE (Phaser) Simulates a phaser with silky smooth sound not attained by other models.

<Æ 0-10 Omx Adjusts the effect sound mixing ratio. bF, AF Oposi Selects the connection position of the MODULATION module. The following two settings are available. bF: Before the DRIVE module AF: After the EQUALIZER module @RATE <= 1-50 {Adjusts the modulation rate. © coLor Select the character of the phase sound. Selects the connection position of the MODULATION module. The following two settings are available. bF: Before the DRIVE module AF: After the EQUALIZER module TYPE 10 RICH (Pitch Shifter) This effect varies the pitch in the range from 1 octave down to 2 octaves up. TYPE 9 PRINGMD g Modulati This effect applies amplitude modulation to the input signal, resulting in a metallic sound character. Oposi bF, AF | @ FREQ = 1-50 | © BAL 0-50 Determines the frequency of the modulation signal. Adjusts the mixing balance between effect sound and original sound. Higher values result in stronger effect sound.

QPIT -22.-11.-1,1,2.. 12,24

Adju: semitone steps. the pitch shift amount in This effect mixes a slightiy pitch-shifte modulation. @TONE 0-10 {Adjusts the effect sound character. TYPE 11 IDENUNE. (Detune) d component to the original sound, resulting in a chorus effect with only slight © 8AL p= 0-50 Adjusts the mixing balance between effect sound and original sound. Higher values result in stronger effect sound. TYPE 12 PBDEWAB! Simulates a typical pedal wah with changing effect and feeling according to the pedal angle. CE) @TONE 0-10 {Adjusts the effect sound character. Omx Æ Adjusts the effect sound mixing ratio. 0-50 | @Posi bF, AF Selects the connection position of the MODULATION module. The following two settings are available. bF: Before the DRIVE module AF: After the EQUALIZER module = 1-50 @FREQ {Adjusts the wah center frequency. © LEVEL Adjusts the volume level. ZOOM GFx-4 25 emmener Ο

siejewieied pue SedAL 19943 |] TYPE 13 PDEPIRPEIPIE This is a pitch shifter controlled by the pedal. Oposi bF, AF | @ TYPE 1-10 | @ TONE 0-10 Selects the connection position of the Selects the pedl pitch type. Adjusts the effect sound character. MODULATION module, The following two settings are available bF: Before the DRIVE module AF: After the EQUALIZER module IPedal pitch type] M PEDAL WAH/PEDAL PITCH key TPE Æ, = For the effect iypes PDLWAH (pedal wah) and PDLPIT {pedal pitch) of the MOD module only, here is a special 1 2. 0cent 100 cent Key 1 call up the edit screen. 2 Lcent Hi octae 3 2 Ocent Hociae Pressing the PEDAL WAH/PEDAL PITCH key in ä Loc ose manual mode or program mode toggles {he unit between ë PR ge the PDLWAH and PDLPIT edit screens When PDLWAH or PDLPIT is selected, you can adjust $ Doubing Detuned sound + angel SOU | he effet parameters with the knobs of FX panel 2. In this 77] octaie + ongnal sound | 7 2 octave + ongial sound Case, the following setings are established automatically. 8° "| 700 cent; ongnal sound | 72500 cent: ongnal sound 877] 2 (6H) + ongnal sound Hiaciae + MODULATION module = ON 40 | “OH +ongnaisound | 21 octave + ongnal sound * MODULATION module effect type PDLWAH or PDLPIT. + UP if RTMSET display EP-MOD parameter = oF bus] : DELAY/REVERB module 0: This module contains various echo effects such as delay and reverb. TYPE 1 HALL (GE) ‘This is a reverb effect which simulates a medium-size concert hall. TYPE 2 PARENA (Arena) ‘This is a reverb effect which simulates a large arena. TYPE 3 ROOM (Room) ‘This is a reverb effect which simulates a small room. TYPE 4 GARAGE (Garage) This is a reverb effect which simulates a garage with a high amount of early reflections. O REVTIM 1-30[@ TOoNE 0-10 @REVMX 2 0-50 {Adjusts the reverb time. ‘Adjusts the effect sound character. Adjusts the effect sound mix TYPE 5 ADEMHAL (Delay Hall} This is a combined delay + hall reverb effect. TYPE 6 DEMROM, (Deby Room) ‘This is a combined delay + room reverb effect. © oLYTIm 1-50] @ oivmx = 0-50 | © REVMIX 0-50 | {Adjusts the delay time in 10-ms steps. Adjusts the delay sound mixing ratio. Adjusts the reverb sound mixing ratio. 26 2ZOOM GFx-4

TYPE7 |PPDLY (Pingpong Delay) This is a pingpong delay effect with a long delay time (maximum 2 seconds). TYPE 8 ECHO (Echo) This is a warm sounding delay effect with a long delay time (maximum 2 seconds). © oLYTIM 1- 99,1.0 - 2.0 | ©) FB/HLD 0-50, Hd, HS | ©) DLYMX 2 0-50 Adjusts the delay time in 10-ms steps | 0 - 50: Adjusts the delay feedback Adjusts the delay sound mixing ratio. up to 1 second, Above that adjustment | amount is in 100-ms steps. Hd: Causes the effect to operate as hold delay. HS: Causes the effect to operate as hold delay with seamless function Hold Delay THold Delay] Ds cine PP DLV or ECHO beelcturein _ ojguatsaund | | [7/7]! the DELAY/REVERB module and setting parameter 2 "9! ï ï Repeat playback ; L— fepetpa to "Hd" or "Hs", a patch can use the hold delay function here he foot suites serve to control ra] [] 51) JF SJ: recording and playback of a phrase. " roms] | Î 2 Sclette ao pe opte in anal mode and Ps Bols Pres pres ot sich 31 tar recording ‘ ! ! ane arcanes ral sound : J [7 5917! notpagek : repeat playback of the recorded phrase starts Effect sound 1 ! d pain) Peer I reoë JT TI) 0 + Pressing foot switch 3 during repeat playback stops ot sut L ï playback. Footswitehs Press Press Seamless Delay (Patch delay) Using the seamless delay function causes the delay sound from the immediately preceding patch 10 be heard still afier switching patches. he scans dly amtion fthe GEX-d an be une en both patches (Seamless Delay] before and after switching) fulfill all of the following conditions: (1) REV/DLY module = ON t

2) REV/DLY module effect type = PP-DLY or ECHO!

(8) Delay time = Max. 1 second When both the patches (before and after switching) have the REV/DLY module ON and the FB/HLD parameter set 10 “HS”, the hold delay function can be used as seamless delay. In this case, the recorded phrase continues to be repeated also after the GEX-4 is returned 10 program mode and the patch is ssitihed during repeut playback, To force an end 6 the bold delay functioa Ü 1 after a patch change, set the unit to the bypass condition. Patch change TYPE 9 AREVERS. (Reverse) This is a special delay effect where the effect sound seems to be rotating in reverse. © DLYTIM 50-0,10-20/@FB 0-50 [© DLYBAL ZÆ 0-50 AAdjusts the delay time in 10-ms steps Ah delay feedback amount AAdjusts the delay sound mixing ratio. up to 1 second. Above that, adjustment is in 100-ms steps. TYPE 10 ST CHO (Stereo Chorus) This is a stereo chorus effect with clear sound and a wide spread. O oEPTH 0-50|@ RATE 1-50 | © CHOMX Æ 0-50 AAdjusts the effect depth “Adijusts the modulation rate. AAdjusts the chorus sound mixing ratio. ZOOM GFX-4 27 emmener Ο

Other Function suogoun 4 1210 The AI Initialize function is and how to readjust the expression pedal. All Initialize This section contains information about special functions such as how to return the GEX-4 to the factory default condition special function that lets you reset the GFX-4 to the condition in which it was originally shipped. When AI Initialize is performed, all settings of the unit including all user group patches are returned to the default condition. À: Tum power to the GFX-4 on while keeping the STORE key depressed. The display shows INIT” cour name

2. Press the STORE key once more.

A Initialize is carried out. If AI Initialize was carried out, the unit automatically returns to the program mode. Note that when AI Initialize is executed, the contents of all patches stored by the user will be overwritten (erased). When wishing to cancel AI Initialize, press the MANUAL/CANCEL key before step 2 Adjusting the Expression Pedal The expression pedal of the GFX-4 uses a highly reliable optical sensor mechanism. The pedal is adjusted for optimum operation at the factory, but it can be readjusted as follows if required À: Hold down the PEDAL module key while 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 10 "MAX" EE? $ 28 ZOOM GFx-4

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.

Push strongly, When foot is lifted, so that pedal pedal returns slightiy touches here L Press STORE key ) ‘The adjustment is completed, and the unit returns to the program mode.

Troubleshootin No sound or very low volume

• Is suitable AC adapter connected, and power switch set to ON? Make connections as described in "Getting Connected' and tum power on. is instrument comnecteg cometp to INPUT … | ) [Make connections as deserbedin Geting Jack and playback equipment to OUTPUT jack? | Ly | Connected + is shielded cable defective? 0) [y using another cable Is amplifier tumed on? Are level controls for instrument and amplifier set to proper values? Turn amplifier on and adjust volume to proper level. + 1s GFX-4 set to mute condition? Cancel the mute condition. + Is MASTER LEVEL knob tumed down? Sat MASTER LEVEL knob to proper position + 1s expression pedal raised? For some patches, the expression pedal controls the volume. Set i to a suitable position. Bypass (mute) mode ‘cannot be activated + Has unit been switched between program mode and manual mode? Switch function Is different in program mode and manual mode. Select correct mode. Volume does not change when expression pedal operated in bypass mode + Has expression pedal been set to function as volume pedal? Assign volume control function to: expression pedal as described on page 19 and set minimum volume. + Is mono output used (playback system connected only to OUTPUT MONO jack}? WAR a mono connection, {he expression pedal cannot be used to control the volume. Connect the playback system ta OUTPUT STEREO jack switching is not performed properly Expression pedal on/off + Readjusting the pedal may correct the problem. Readjust pedal, as described on page 28. Oscilation oceurs Is high-gain distortion effect used together with compressor/booster effect or EQUALIZER? Reduce parameter values of high-gain module (gain, tone, level). Effect programs Effect modules Patch memory Sampling frequency AID conversion D/A conversion Input Pickup select 6+ZNR + Amp Simulator USER Gead/write/store) PRESET 44 (42 effects + ZNR + Amp Simulator) Outputs 3 patches x 5 banks x 4 groups = 60 3 patches x 5 banks x 4 groups = 60 (rcad Display only) Total 120 patches 40 kHz Power requirements 20-bit 64-times oversampling converter 20-bit 128-imes oversampling converter Guitar input Weight Standard phone jack (mono) x 1 {nominal input level -10 dBm) Dimensions Mono output Standard phone jack (mono) x 1 (nominal output level -10 dBm, output impedance 10 KQ2 or higher) Combined line/headphone output Standard phone jack (stereo) x 1 (maximum output level +4 dBm, output load impedance 10 KG or higher) Original LCD (with backlight) 2-digit, 7-segment LED 12 V AC, 500 mA (rom supplied AC adapter AD-0008) 397 mm (W) x 183 mm (D) x 60 mm (H)

• Design and specifications subject to change without Normal notice. Input impedance 5 10KQ (pickup type = passive) Active Input impedance 20 kQ. (pickup type active) ZOOM GFX-4

xs 1 uoyed |] Ha sion pal ph ee Meul sound with delay elec TEAS WAHDST [PEDAL-WAH] fOGar din sound or "BUS Disiortion sound With pedal-wah et Smooth chorus clean sound. Lars roonr PANAMA

© LNUANCE | Ra amplifier sound É TL ERNNTR Modem Fuz one 77 ROGKER “Ÿ Diarion sound for sandan e

o [2] vabRv TE NaÉS die sound . VArLD Vas lead sound 1 [ [ 1 soi H [ [ZAR [ZAR auto-wah sound … SCOHEN Lead sound for Jaz/faion SE c 2 f [ 1] ôs … © AZZOD [Over drive sound for jazz pl su Luke around sound

“[TÉMSTES T'UKTONE VISUAL “Cri sound for Couniiÿ HA Si aa sound for ad play Classic chorus with distortion sound. Détuie chori cléan vou Dave sound with vibrato et ROBOT ZZNR(Zoom Noise Reduction) parameter in each patch should be adjusted for optimum matching the with your guitar. Robot voie sound BA PR AORE Pa in thé factory default condition the contents of the user patches and preset patches are the same.

• RTM (Real Time Modulation) assigned for al-patches. 30 zoom GFx-4

This section gives some pointers on how to get optimum performance from the unit. Use these hints as starting points to explore the GFX-4 capabilities to the max, Compact distortion 2-stage sound This is a frequently used setting for playing a solo with the same sound character as the backing, but with more distinct, solid sound. Normally, the first stage will provide OD distortion with moderate gain and high level, and the second Stage will be used to create the main distortion Take care not to apply excessive distortion, because this setting places a considerable load on the circuits and can lead to oscilltion. sua Booster Overdrive Guitar amp Re (eue f Cars Q EC

[Sample Patches] A02: ODROCK Example for booster + overdrive combination A1: HEAVY Example for booster + high-gain distortion combination Technique for obtaining detailed distortion using a compact effect and tube amp This kind of setup is frequently used by professional guitarists to further increase the distortion from the guitar amplifier. The GFX-4 makes it easy to duplicate this setup, because the unit also features famous guitar amplifier sounds. The technique can be applied also when not playing at loud levels, such as during MTR recording. The amp simulator will be useful in such cases. . vas. Guitar ame Guitar Macro TR Conan

[Sample Patches] A0t: GFXDRV ‘This uses light compression to extend sustain. Enhances playing through a stack amp. A23: TEXAS Setting example for the sound of a famous late blues guitarist from Texas. Adds punch to a combo amplifier. How to make optimum use of effect connection sequence The sonic impression created by an equalizer type effect such as wah differs greatly, depending on whether it is inserted before or after the distortion in the signal path. When inserted before the distortion, it emphasizes the point on which distortion is applied. When inserted after the distortion, equalization 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] Co1: 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 effect devices still is very attractive also in the digital age. Mastering the use of such sounds will help you find your individual style. For best results, avoid excessive distortion and let the sound character of the selected device speak for itself. [Sample Patches] A12: FUSION This is a vintage compressor and phaser sound A22: COOLWA Setting example for a vintage pedal wah sound b02: NIRVRN Setting example for obtaining modern sound with a vintage distortion effect b21: FUZRVS Setting example for a combination of vintage fuzz + vintage wah + reverse-rotation delay Expression pedal secrets The expression pedal of the GFX-4 incorporates a nifty feature called assignable switch (see page 19). n be used to toggle between program mode and manual mode. This enhances your flexibility during a performance, becau: possible to turn separate compact effects on and off with the foot switches. For example, you can use the feature to turn a modulation effect on and off or control other the sound in other ways offered by manual mode. The switch ca n manual mode, it is [Sample Patch] C23: JAZZOD May be used also in manual mode only ZOOM GFX-4 nus uno noi sun À