zoom gm200

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Thank you for selecting the ZOOM GM-200 (hereafter simply called the " GM-200 ").The GM-200 is a modeling type guitar amp simulator with the following features andfunctions.

Please take the time to read this manual carefully so as to get the most out ofyour GM-200 and to ensure optimum performance and reliability. Retain thismanual, the warranty card and all other documentation for future reference.

Safety Precautions/Usage Precautions 2Controls and Features 3

Top Panel 3Rear Panel 3

Getting Connected 4Battery Operation 5Power-On 5Trying Out the GM-200 6Output Character Settings 8Selecting the Amp Type 9Sample Settings 10Troubleshooting / Specifications

Wide range of guitar amp soundsUsing the Variable Architecture Modeling System (VAMS) developed by Zoom,the GM-200 models the sound characteristics of various famous guitar amplifiers.Simply by operating the AMP SELECT knob, you can produce a wide range of sound characteristics, from vintage fifties amps to the latest in modern technology.

Compatible with virtually any playback systemOutput characteristics and signal processing can be adapted to the requirements of various systems with the OUTPUT CHARACTER knob. The GM-200 is a versatileplaying tool, whether you use it for stage rehearsals, practicing with a radio/ cassette/ CD player, or a direct line out to a multi-track recorder (MTR).

4 types of effects for guitar play The GM-200 also incorporates four types of vintage effects that are essential forgreat guitar sound, including vintage chorus, tremolo, tape echo, and spring reverb.A single knob on the panel lets you select effects and adjust their intensity.

Versatile input/output configurationIn addition to the phone jack for guitar input, the unit also provides a MIX IN jack (stereo mini phone plug) which is handy for connecting a CD player, MD player orother source for mixing with the guitar sound. On the output side, there is a stereophone jack as well as RCA type phono jacks, allowing easy connection to any kindof equipment, such as guitar amps, an audio system, a portable stereo, etc. Stereoheadphones can also be plugged in, for those late-night practice sessions.

Dual power supply The dual power supply principle allows the unit to be powered from the AC adapteror six IEC R6 (size AA) batteries. This lets you easily take the GM-200 on stage orinto a rehearsal studio, in the same way as a compact guitar effect.

OPERATION MANUALIntroduction

Contents

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Safety PrecautionsIn this manual, symbols are used to highlight warnings andcautions for you to read so that accidents can be prevented.The meanings of these symbols are as follows:

Please observe the following safety tips and precautionsto ensure hazard-free use of the GM-200.

Power requirementsSince power consumption of this unit is fairlyhigh, we recommend the use of an AC adapterwhenever possible. When powering the unit froma battery, use only an alkaline type.

[AC adapter operation]

Be sure to use only an AC adapter whichsupplies 9 V DC, 300 mA and is equipped witha "center minus" plug (Zoom AD-0006). Theuse of an adapter other than the specified typemay damage the unit and pose a safety hazard.

Connect the AC adapter only to an AC outletthat supplies the rated voltage required by theadapter.

When disconnecting the AC adapter from theAC outlet, always grasp the adapter itself anddo not pull at the cable.

When not using the unit for an extended period,disconnect the AC adapter from the AC outlet.

[Battery Powered Operation ] Use six IEC R6 (size AA) 1.5V batteries

(alkaline). The GM-200 cannot be used for recharging.

Pay close attention to the labelling of thebattery to make sure you choose the correcttype.

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

If battery leakage has occurred, wipe the batterycompartment and the battery terminals carefullyto remove all remnants of battery fluid.

While using the unit, the battery compartmentcover should be closed.

EnvironmentAvoid using your GM-200 in environments whereit will be exposed to:

Extreme temperature High humidity or moisture Excessive dust or sand

Excessive vibration or shock

HandlingSince the GM-200 is a precision electronic device,avoid applying excessive force to the switches andbuttons. Also take care not to drop the unit, and donot subject it to shock or excessive pressure.

AlterationsNever open the case of the GM-200 or attempt tomodify the product in any way since this canresult in damage to the unit.

Connecting cables and input andoutput jacksYou should always turn off the power to the GM-200 and all other equipment before connecting ordisconnecting any cables. Also make sure todisconnect all cables and the AC adapter beforemoving the GM-200.

Usage Precautions

Electrical interferenceFor safety considerations, the GM-200 has beendesigned to provide maximum protection against theemission of electromagnetic radiation from inside thedevice, and protection from external interference.However, equipment that is very susceptible tointerference or that emits powerful electromagneticwaves should not be placed near the GM-200, as thepossibility of interference cannot be ruled outentirely.

With any type of digital control device, the GM-200included, electromagnetic interference can causemalfunctioning and can corrupt or destroy data. Careshould be taken to minimize the risk of damage.

CleaningUse a soft, dry cloth to clean the GM-200. If necessary, slightly moisten the cloth. Do not useabrasive cleanser, wax, or solvents (such as paintthinner or cleaning alcohol), since these may dull thefinish or damage the surface.

Please keep this manual in a convenient place forfuture reference.

ZOOM GM-200

S af et yP r ecaut i ons/ UsageP r ecaut i ons

Safety Precautions/Usage Precautions

2

Warning

Warning

Caution

This symbol indicates explanationsabout extremely dangerousmatters. If users ignore this symboland handle the device the wrongway, serious injury or death couldresult.

This symbol indicates explanationsabout dangerous matters. If usersignore this symbol and handle thedevice the wrong way, bodily injuryand damage to the equipmentcould result.

Caution

Caution

Caution

Caution

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ZOOM GM-200

C on t r ol s an d F e a t ur e s

Controls and Functions

3

POWER indicatorThis LED lights up while the GM-200 is powered.When operating the unit on battery power, theindicator starts to flash when the batteries arerunning low.

GAIN control Adjusts thedistortionintensity.

ZNR control Adjusts operationof the ZNR (ZoomNoise Reduction)circuit.

MASTER LEVELcontrol

Adjusts the

overall signaloutput level.

EFFECTS knob Allows you to choose between foureffects and adjust their intensity.

OUTPUT CHARACTER knob Allows matching the output signal of the

GM-200 to the requirements of theplayback system. Signal characteristicsand processing are changed internally.

AMP SELECT knob

Gives a choice of 11 differentguitar amp characteristics.

TREBLE/MIDDLE/BASS controlsThe three-band tone control for treble, midrange, andbass allows tailoring the sound as in a guitar amplifier.

POWER switchServes to turn theunit on and off.

OUTPUT jackThis stereo phone jack serves for connectionto a guitar amp. It is also possible to plug apair of stereo headphones into this jack, orto use a Y cable for sending the output totwo amplifiers.

Turn off power to the amplifier before changing the setting ofthe INPUT GAIN switch. If the switch is operated while theamplifier is on, shock noise may damage the speakers.

INPUT jackConnect the guitar to this jack.MIX IN jackThis stereo mini jack accepts the signal from an external source. Thesignal supplied to this jack is not processed by the effect circuitry of theGM-200. It is simply mixed to the guitar signal and sent to the output.

OUTPUT L/R jacksThis stereo pair of RCA type phono

jacks serves for connection to a Hi-Fi system, portable stereo, multi-track recorder or other componentequipped with a line input.

DC IN (AC adapter) jackTo use the GM-200 on ACpower, plug the supplied

AC adapter into this jack.

INPUT GAIN switch Adjusts the gain for the signalinput via the INPUT jack ( ).

For connectionof guitars withlow output(passive type)

For connectionof guitars withhigh output(active type)

NOTE

Top Panel

Rear Panel

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INPUTDC9V

OUTPUT

RLINPUT

RL

MTR

GM-200

Guitar

AC adapter

MTR/recording mixer etc.

MIX IN

GM-200

Guitar

Hi-Fi systemRadio/cassette /CD player

CD player AC adapter

RCA type phono cable Stereo mini phone plug cable

INPUTDC9V

OUTPUT

RL

RL

AUX INPUT

RL

ZOOM GM-200

Get t i ngConnect ed

Getting Connected

4

Audio System Connection (for line audio)

MTR/Recording Mixer Connection (for recording)

This example shows how to connect the GM-200 to a Hi-Fi system or a portable stereo such as a radio/ cassette/ CDplayer or similar. Use two audio cables with RCA type plugs to connect the OUTPUT L/R jacks of the GM-200 tothe AUX inputs (line inputs) of the stereo system. By connecting the line output of a CD player or MD player to theMIX IN jack of the GM-200 using a stereo mini phone plug cable, you can mix the sound from a CD or MD to yoursession.

This example shows how to connect the GM-200 to a multi- track recorder or a recording mixer or similar. Use ashielded mono cable with phone plug or two cables with RCA type phono plugs to connect the OUTPUT jack (orOUTPUT L/R jacks) of the GM-200 to the line inputs of the recorder.

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GM-200

Guitar AC adapter

Guitar Amplifier

Guitar Amplifier

OUTPUT INPUTDC9V

The GM-200 can be powered either from the suppliedAC adapter or from six IEC R6 (size AA) batteries.When the GM-200 is operating on battery power, thePOWER indicator starts to flash when the batteries are

running low. In such a case, replace the batteries assoon as possible.

1. Verify that the AC adapter, guitar, andplayback system are correctly connectedto the GM-200.

Turn off power to the amplifier beforechanging the setting of the INPUT GAINswitch. If the switch is operated while theamplifier is on, shock noise may damage

the speakers.2. Turn the ZNR control and MASTER

LEVEL control of the GM-200 as well asthe volume control of the playbacksystem to minimum.

3. Turn on the equipment in the orderGM-200 playback system.

4. Raise the MASTER LEVEL control of theGM-200 to a position that will provide asuitable volume.

ZOOM GM-200

Power-On

Battery Operation

5

This is an example for guitar ampconnection. If you use one amplifier,simply connect the OUTPUT jack of the GM- 200 to the input of theamplifier, using a shielded monocable. To send the output of the GM-200 to two amplifiers, use a Y cable(splitter). On the guitar amp, youshould use the clean channel inputwith no equalization.

Guitar Amplifier Connection (for guitar amplifier)

POWER LED O P E N

B A T T E R Y : R 6 ( S U M- 3

) or " A A " S I Z E x 6 Adjacent batteries

are inserted withopposite polarity.

Batterycompartment cover

TabBattery compartment

Six IEC R6 (size AA) batteries

Rear of GM-200

Open

Getting Connected

B a t t er y O p er a t i on / P ow er - On

NOTE

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To use the GM-200 for creating various types of sound, perform the following steps.

ZOOM GM-200

T r yi ngOut t h eGM-2 0 0

Trying Out the GM-200

6

Use the GAIN control to adjust the distortionintensity. Because turning up this control not onlyincreases distortion but also raises the volume level,use the MASTER LEVEL control as necessary toadjust the level.

Adjust distortion intensity and volume

Adjust ZNR (Zoom Noise Reduction)

3.

Use the OUTPUT CHARACTER knob to choose

among the various options, as described on page8. Make the setting to match the type of system towhich the GM-200 is connected.

Select the output character1.

Use the AMP SELECT knob to choose the guitaramplifier type that is simulated by the unit, aslisted on page 9.

Select the amp type2.

4.

Use the ZNR control to set the threshold for the ZNR circuit that reduces noiseduring play pauses. When the control is turned fully to the left, ZNR is off.Turning the control to the right gradually raises the action threshold. Set thecontrol to achieve maximum noise reduction without causing the sound to becut off unnaturally.

NOTEThe optimum ZNR point will differ for various amptypes and gain settings. Readjust the ZNR control ifyou have changed the setting of the AMP SELECTknob or the GAIN control.

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ZOOM GM-200

T r yi n g O u t t h e GM-2 0 0

Trying Out the GM-200

7

5.Use the EFFECTS control to select one of the followingfour effects and adjust its intensity.

Use the TREBLE/MIDDLE/BASS controls to adjust therespective frequency range as desired.

OFFNo effect processing iscarried out.

TREMOLOThe sound fluctuatesperiodically. The more theknob is turned to the rightwithin the TREMOLO range,the faster the tremolo speed.

CHORUSThis is a stereo choruseffect which lends bodyto the sound. The more

the knob is turned to theright within the CHORUSrange, the faster thechorus modulation speedand the higher the effectmix level.

ECHO This is a soft delayeffect whichresembles a tapeecho. The more theknob is turned to theright within the ECHOrange, the longer thedelay time interval.

REVERB This is a reverb effectwhich resembles aspring reverb. The morethe knob is turned tothe right within theREVERB range, thehigher the effect mixlevel. The reverbduration and spreadchanges according tothe setting of the AMPSELECT knob.

Adjust effect type and intensity

Adjust tone6.

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ZOOM GM-200

Out put Ch ar act er S et t i ngs

Output Character Settings

8

Use the OUTPUT CHARACTER knob to choose among the following options. Make the setting to match theconnection type (see pages 4 - 5) and your personal preferences.

These settings are optimized for use of the unit together with aplayback system such as a Hi-Fi system or portable stereo.Normally, when connecting the output of a conventionalpreamplifier or compact effect to an audio system, the sound willoften be too thin and flat. The LINE AUDIO settings providelively, tight guitar sound in such circumstances.

These settings are optimized for line recording using a multi-track recorder or recording mixer or similar. With these settings,it is easy to create a professional guitar sound during recordingand to match the GM-200 output to the sound of otherinstruments being recorded.

These settings are optimized for use with a guitar amplifier.

Emulates the sound of a guitar amp picked upwith a close-up microphone

Emulates the acoustics of a room, with a feelingof depth and spaciousness

Emulates a wide spread created with twomicrophones used in a stereo arrangement

Special effect using phase shift. Depending on theselected tone and on the played pitch, the soundlocalization changes.

Direct :

Air :

Wide:

Character OFF :

Punch :Edge :Live :

Standard line amp characterSound with a strong midrange punchResults in attacks with a hard egdeFresh, lively sound

Basic sound as obtained when connectedto a guitar amplifier

Brilliant sound with strong trebleWarm sound with midrange emphasisMetallic sound with treble and bassemphasis

Normal :

Bright : Warm :

Bottom :

GUITAR AMP

MTR RECORDING

LINE AUDIO

NOTE

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ZOOM GM-200

S el e c t i n g t h eAm pT y p e

Selecting the Amp Type

9

Use the AMP SELECT knob to choose among the following options.

Emulates a tube type combo amp developed in the sixties by an American companyknown for its single-coil pickup guitars. This famous amplifier had a clean, brightsound and beautiful sounding spring reverb. The setting emulates the typical cleanchannel sound of this amplifier. Depending on the guitar in use, the sound may bedistorted at certain settings of the GAIN control.

Emulates the drive channel sound of the above type of amp. Although this is a drivechannel, distortion is smooth and subdued, and the top end is bright and extended.

Emulates a small tube type combo amp built in the nineteen-fifties by the samecompany as the amp described above. Originally developed as a practice amplifier forbeginners, many rock and blues artists in the sixties used it for recording because of its superb distortion sound at low levels. This setting works best at fairly low settingsof the GAIN control, using the picking intensity to vary the distortion amount.

Emulates the British-built tube amp that became the hallmark of the Liverpool soundin the sixties. Famous for some unique circuit design aspects, such as the tube-basedrectifier and class A amplifier topology. The clean sound and crunch sound aretypical, but raising the GAIN control will result in harder distortion.

Emulates the crunch sound of a tube stack amp from a British manufacturer whoruled the eighties scene. This setting is based on the 800 line of amplifiers withmaster volume control. A slight crunch sound is obtained even with the GAIN controlturned down.

Emulates the full drive sound of the 900 line that succeeded the above type of amp.By adjusting the GAIN control and MASTER LEVEL control, you can vary the

sound from crunch to deep distortion. Very well suited for hard rock or heavy metallead guitar.

In the late sixties, a manufacturer in San Francisco led the move towards high outputpower, with a hand-built tube combo amp. The setting emulates the sound of thisamplifier, which was famous for its detailed overdrive and long sustain. Great forfusion style lead guitar.

Emulates the sound of a tube type stack amp with intense distortion, designed bythe same manufacturer for the metal bands of the nineties. These amplifiersallowed switching between diode and tube based rectifiers, resulting in a

drastically different sound character. Suited especially for marking the rhythmwith distortion sound.

Emulates a famous tube stack amp developed by an American amp manufacturer inthe nineteen-eighties in cooperation with a hard rock superstar. The original amplifierwhich even was used as the title of an album has a gutsy low end and high-gain,detailed distortion.

Emulates a head amplifier made in America by a custom manufacturer in the eighties,but used extensively in the nineties on the road and in the studio by a guitarist famousfor his "woman tone". Great for lead guitar playing.

Creates a dynamic sixties style stack amp sound with fuzz distortion. Suitable forsingle-note leads and riffs.

American Clean

Twin Drive

Blues Tweed

Class A Combo

British Crunch

British Drive

Combo 335

Metal Panel

Black Bottom

Modern Lead

Fuzz Stack

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The examples shown below are for use of the GM-200 with an audio system or portable stereo. Set the ZNR and MASTER LEVEL controls as required. When wishing to use the settings with a guitar amp, try setting the OUTPUT CHARACTER knob

to "GUITAR AMP".

ZOOM GM-200

S ampl eS et t i ngs

Sample Settings (LINE AUDIO)

10

AMP SELECT EFFECTSOUTPUT

CHARACTERGAIN TREBLE MIDDLE BASSSurf sound of built-in type

tube amp. Changing the

effect to tremolo alsoworks well. American Clean LiveReverb


CHARACTERGAIN TREBLE MIDDLE BASSDrive sound of built-in

type tube amp, great forsouthern rock. Twin Drive LiveEcho


CHARACTERGAIN TREBLE MIDDLE BASS

Blues Tweed PunchOFF

Here comes Mr. Bassman,with the blues guitar soundof the good old days.



Class A Combo LiveOFF

Combo amp crunchsound essential for trueLiverpool sound.



British Crunch Character OFFOFF

Crunch sound of Britishstyle tube stack amp withgreat definition.



British Drive LiveOFF

Drive sound of Britishhigh-gain stack amp.



Combo 335 LiveReverb

High-class combo amp,great for plucky leadsolos.



Metal Panel EdgeOFF

Dual sound with a fine

edge.



Black Bottom LiveChorus

Add chorus to the backingpart and play a right-handsolo with reverb, for thattypical American rock sound.



Modern Lead PunchReverb

Using a single-coil frontpickup, you can get that"woman tone".



Fuzz Stack EdgeOFF

Play the left handedguitar with your teeth...?

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ZOOM GM-200

S am pl e S e t t i n g s

Sample Settings (MTR RECORDING)

11

The examples shown below are for use of the GM-200 with a multi-track recorder. Set the ZNR and MASTER LEVEL controls as required. When wishing to use the settings with a guitar amp, try setting the OUTPUT CHARACTER knob

to "GUITAR AMP".



American Clean WideChorus

Clean chorus forbacking, well matched tosingle-coil halftones.



Twin Drive AirChorus

The ideal setting for slowhand songs.



Blues Tweed AirReverb

Become the king of blues.



Class A Combo WideOFF

Modern class A sound,for playing low-positionchords to the max.



British Crunch AirReverb

Seventies style hard rock sound, perfectly matchedto organ playing.



British Drive AirChorus

British stack amp sound,for that real metal ring.



Combo 335 AirChorusMr. 335 fusion sound.



Metal Panel AirOFF

With ZNR turned up,coast through thosetricky riffs.



Black Bottom WideChorus

For "good enough" hardrock.



Modern Lead AirReverb

Lead tone for instrumentalrock numbers.



Fuzz Stack WideTremoloAre You Experienced?

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T r oub l esh oot i ng/ S peci f i cat i ons

Troubleshooting

Built-in programs11 amp types3-band tone control11 output character types4 effectsZNR

Sampling frequency 40 kHz A/D converte r 20 bit, 64 times oversamplingD/A converter 20 bit, 128 times oversampling

INPUTINPUT Standard mono phone jack x 1Input impedance 480 kilohmsGain switch HIGH: for electric guitars with passive

type pickupsLOW: for electric guitars with active

type pickupsMIX IN Mini stereo phone jack Input impedance 10 kilohms

Rated input level -10 dBm

OutputsRCA type phono jacksOutput impedance 600 ohmsRated output level -10 dBm to +4 dBm

Line/headphone outputStandard stereo phone jack (doubles as headphone jack)Output impedance 33 ohmsRated output level -10 dBm to +4 dBm (load

impedance 10 kilohms or more)

Power requirementsSupplied AC adapter9V DC, center minus (AD-0006)Six IEC R6 (size AA) batteriesBattery life: 10 hours continuous operation (alkaline

batteries)

Dimensions215 (W) x 175 (D) x 65 (H) mm

Weight600 g (without batteries)

* 0 dBm = 0.775 Vrms* Design and specifications subject to change without notice.

ZOOM CORPORATIONNOAH Bldg., 2-10-2, Miyanishi-cho, Fuchu-shi, Tokyo 183-0022, Japan PHONE: +81-42-369-7116

FAX: +81-42-369-7115Web Site: http://www.zoom.co.jp

Specifications

No sound or very lowvolume

Is correct AC adapter connected, and isPOWER switch turned on?

Turn the system on as described in"Power-On".

Are connections between INPUT jack andguitar, OUTPUT jack and playback systemestablished correctly?

Follow the instructions in "GettingConnected".

Is shielded cable defective? Try replacing the cable.

Is playback system turned on? Are allvolume controls at guitar and playback system set to proper levels?

Turn amplifier on and adjust controls.

Set ZNR control to suitable position, sothat attack and decay does not soundunnatural.

Is MASTER LEVEL control turned down?

Is ZNR setting appropriate?

Set MASTER LEVEL control to suitablelevel.

Batteries are used upquickly Are manganese batteries being used? Use alkaline batteries.

Symptom Check Remedy

Printed in Japan GM-200-5000

zoom gm200

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