Electro-Harmonix Mono Synth Effects Pedal

Electro-Harmonix has introduced the Mono Synth, a new pedal that transforms a guitar into 11 different synthesizers.

Here’s what they have to say about it:

The Mono Synth was designed to work on guitar without any modifications, special pickups or MIDI implementation. Its intuitive layout makes it user friendly. The pedal’s DRY dial adjusts the dry guitar volume at the Synth Output while SYNTH controls the volume of the synthesizer sound at the Synth Output. Used together they let a player fine tune their mix. The SENS control, short for sensitivity, adjusts how playing dynamics trigger the synthesizer and tailors the pedal’s response to the guitarist’s instrument and playing style.

A key parameter for each of the 11 synth types can be adjusted via the CTRL knob. It varies depending on the preset and provides enhanced “tweakability.” There is also an EXP input that lets the player control an entirely different parameter in real-time with an expression pedal.


  • Features eleven great sounding, mono synth sounds
  • Easy to use controls let you dial in the sound you want quickly
  • EXP pedal input for real-time expressive control with your foot
  • Create, save and recall eleven user presets, one for each of the eleven synth sounds
  • EHX 9.6VDC-200mA power supply included
  • Current Draw: 125mA @ 9VDC
  • Dimensions in inches: 4.0(w) x 4.75(l) x 2.25(h)
  • Dimensions in mm: 102(w) x 121(l) x 58(h)

Pricing and Availability

The Electro-Harmonix Mono Synth is available now with a street price of about $125.

8 thoughts on “Electro-Harmonix Mono Synth Effects Pedal

    1. Every EH demo I’ve seen in the past decade has been stellar. A perfect blend off playing patches and just enough info. Synth manufacturers should be taking notes.

  1. This almost makes me wish I played guitar, even though a few of their pedals can be useful to anyone. There are a lot of amazing pedals to be had, but E-H “hot-rods” better than anyone. You can just about chain any three of their offerings together and become a monster. I add my own thumbs-up for their classy demos. They sure get to the point of the *sounds*, huh?

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