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BASS MONO SYNTH 

 

Congratulations on your purchase of the Electro-Harmonix Bass Mono Synth. The 
Bass Mono Synth allows you to transform your bass guitar into one of eleven 

different synthesizers, from vintage synth emulations, to thick, stacked voices, to 
deep pulsing sounds for an array of sonic landscapes and textures. The Bass 

Mono Synth was designed to work on your bass guitar without any modifications 
or special pickups. Plug your bass right in and immediately join the ranks of 

legendary synthesizer musicians.   

 

WARNING: Your Bass Mono Synth comes equipped with an Electro-Harmonix 9.6DC-
200BI power supply (same as used by Boss

®

 & Ibanez

®

: 9.6 Volts DC 200mA). The Bass 

Mono  Synth  requires  125mA  at  9VDC  with  a  center  negative  plug.  Using  the  wrong 
adapter or a plug with the wrong polarity may damage your Bass Mono Synth and void 

the warranty.  

 

GETTING STARTED 

Connect the supplied power adapter to the 9V power jack. Plug your bass into the 

INPUT jack. Connect your amp or other effects pedals to the SYNTH OUTPUT jack. 
Set the DRY knob to the minimum (fully counterclockwise) and set the other top 

row knobs to 12 o’clock. Select a TYPE and step on the BYPASS footswitch to turn 
on the LED. Play your bass and adjust controls to your liking.  
 

ONE NOTE AT A TIME 

The Bass Mono Synth is a multi-oscillator monophonic instrument. It synthesizes 

one note at a time per oscillator. The oscillators have been pre-tuned for each 
synth  type,  only  the  sound  SPECTRE  allows  for  user  control  over  an  oscillator. 

Additionally it can handle only one note from your bass at a time. It does not work 
properly  when  chords  or  two  note  intervals  are  played.  The  Bass  Mono  Synth 

behaves unpredictably and erratically when it receives more than one note at the 
INPUT jack.  

 

SYNTH TYPE DESCRIPTIONS 

 

1.

 

LASER – deep, pulsating synth.   

CTRL: this knob adjusts the attack and decay times of the filter envelope. 

As CTRL is turned clockwise both the attack and decay times slow down.  
EXP: the expression pedal controls the cutoff frequency of the filter which 
also sets the jump-off frequency for the envelope sweep. As the pedal 

travels from heel to toe the filter frequency goes from bass to treble. 

 

2.

 

X-FADE – full, string-like synth.   

CTRL: sets the decay time of the filter envelope.   

Summary of Contents for Bass Mono Synth

Page 1: ...et the DRY knob to the minimum fully counterclockwise and set the other top row knobs to 12 o clock Select a TYPE and step on the BYPASS footswitch to turn on the LED Play your bass and adjust controls to your liking ONE NOTE AT A TIME The Bass Mono Synth is a multi oscillator monophonic instrument It synthesizes one note at a time per oscillator The oscillators have been pre tuned for each synth ...

Page 2: ...sets the decay time of the filter envelope EXP controls the filter envelope s sweep depth or frequency range 7 WUB pulsating synth with a modulating filter CTRL sets the speed of modulation EXP controls the filter s center frequency 8 UNISON Like stacking the voices on a polyphonic synth UNISON has a huge full sound CTRL sets the decay time of the filter envelope EXP controls the cutoff frequency ...

Page 3: ...s a good place to start Please note the LED does not indicate when the input signal has triggered a new note it lights only to indicate the loudness of the input If many of your notes do not trigger the synth then turn up SENS If you hear many false triggers or retriggers without playing a new note then turn down SENS CTRL Knob This knob can be used to control a specific parameter for each synth t...

Page 4: ...tch Use this footswitch to toggle between Preset and live What You See Is What You Get WYSIWYG modes The PRESET footswitch is also used to save a preset to the current synth type set by the TYPE knob See the PRESETS section for more information on saving and recalling presets Status LED The Status LED lights while the Bass Mono Synth effect is engaged The Status LED is off when the unit is in buff...

Page 5: ...ad the preset from memory After reloading the LED will light solid red again 5 If you press and hold the PRESET footswitch while the LED is blinking red your newly edit preset will be saved to memory Press and hold the PRESET footswitch until you see the LED blink quickly EXITING PRESET MODE To exit Preset mode and return to WYSIWYG mode simply press and release the PRESET footswitch The LED will ...

Page 6: ...IFICATIONS Buffered bypass Input impedance 2 2M Output impedance for both output jacks 680 Current draw 125mA TIPS ON GETTING OPTIMUM PERFORMANCE FROM THE BASS MONO SYNTH 1 The Bass Mono Synth is generally best used as the first pedal in an effects chain Place modulation delay and reverb effects after the Bass Mono Synth The unit will not perform well if placed in the effects loop of a guitar amp ...

Page 7: ...terference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver C...

Page 8: ...ted below Customers outside the regions listed below please contact EHX Customer Service for information on warranty repairs at info ehx com or 1 718 937 8300 USA and Canadian customers please obtain a Return Authorization Number RA from EHX Customer Service before returning your product Include with your returned unit a written description of the problem as well as your name address telephone num...

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