User Manual for Electro-Harmonix MONO SYNTH Guitar Synthesizer Pedal

Quick guide from the manual

The Electro-Harmonix MONO SYNTH is a monophonic instrument, meaning it processes only one note at a time. For optimal performance, it is recommended to place this pedal first in your effects chain. Always use the supplied 9V DC 125mA center-negative power supply to avoid damage. If the pedal behaves erratically, ensure you are playing only one note at a time and that no distortion or overdrive pedals are placed before the Mono Synth.

Getting started

To begin using your Mono Synth:

• Connect the supplied power adapter to the 9V power jack.
• Plug your instrument into the INPUT jack.
• Connect your amplifier or other effects pedals to the SYNTH OUTPUT jack.
• Set the DRY knob to minimum (fully counterclockwise) and set the other top row knobs to 12 o'clock.
• Select a synth TYPE and step on the BYPASS footswitch to engage the effect (the LED will light up).

Controls and I/O

DRY VOL Knob: Controls the volume of the untreated input signal at the SYNTH OUTPUT jack.

SYNTH VOL Knob: Controls the overall volume of the synthesizer sound.

SENS Knob: Adjusts the input signal gain before the trigger block. The LED lights orange when the input signal exceeds -4.6dB. Use this as a guide: if notes do not trigger, turn up SENS; if you hear false triggers, turn down SENS.

CTRL Knob: Controls a specific parameter for each synth type.

INPUT Jack: Connect your instrument or previous effects pedal here.

DRY OUTPUT Jack: Provides a buffered version of the input signal, regardless of whether the effect is engaged or in bypass.

SYNTH OUTPUT Jack: Outputs the mix of dry and synth signals.

Synth types

The Mono Synth offers 11 distinct synthesizer sounds:

• NU WAVE: Pulsating string-like synth.
• UNISON: Stacking voices for a polyphonic synth sound.
• BLAST: Aggressive and resonant synth.
• TWIN: Throaty, dual filter sound.
• BASS: Octave-down synth for low end.
• XOX: Fast decaying synth.
• WUB: Pulsating synth with modulating filter.
• TINKER: Quirky synth for bell-like tones.
• LAIR: Dramatic, expressive synth.
• GHOST: Haunting tone with warbling modulation.
• BLISTER: Piercing synth with added adjustable pitched note.

Presets

You can save and recall one preset for each of the eleven synth types.

• Recalling: Turn the TYPE knob to the desired synth, then press and release the PRESET footswitch. The LED will turn red.
• Saving: While in WYSIWYG or Preset mode, press and hold the PRESET footswitch for about 2 seconds until the LED blinks red rapidly. Release the switch to save.
• Editing: If you move a knob after recalling a preset, the LED will blink red. Press and hold the PRESET footswitch to save your changes.

Factory reset

To restore all default presets:

1. Unplug the power cable.
2. Press and hold the BYPASS footswitch while applying power.
3. Continue holding until the LED toggles between red and green (approx. 4 seconds).
4. Release the footswitch. The LED will light green and then shut off when complete.