by Jef | Approximate reading time: 2 Minutes
Electro-Harmonix Mono Synth Guitar Synthesizer

Electro-Harmonix Mono Synth Guitar Synthesizer  ·  Source: Electro-Harmonix/YouTube


The Electro-Harmonix Bass Mono Synth synthesizer pedal for bass guitar was announced back during Winter NAMM. Now EHX has added a guitar version to its range, along with an official demo video – and it all sounds quite ‘Enola Gay’.


Electro-Harmonix Mono Synth

This neat little monophonic synth pedal for your guitar requires no fancy pickups, MIDI or modifications for your favourite axe. There are 11 onboard mono synth patches: NU WAVE, UNISON, BLAST, TWIN, BASS, XOX, WUB, TINKER, LAIR, GHOST and BLISTER. The control knobs are labelled Dry, Synth, Vol, Sens and Control. 

The Sensitivity control adjusts how the pedal reacts to your playing dynamics. and then you can emulate all your favourite synth sounds. There’s also an EXP pedal input for real-time control over synth parameters which could be very useful, especially as you will have your hands full playing your guitar. You can blend your dry guitar signal in with the synth patches and so thicken things up enough to make it stand out.

Yes, it is mono and not a polysynth, but I think it could still be a very useful little synth emulation pedal. The models include a range of the ’80s-esque synth sounds, from fat bass patches to more Nu Wave tones.

Electro Harmonix Bass Mono Synth

Electro Harmonix Bass Mono Synth – A TB-303 for your guitar?

Sure, you probably can’t play as fast and tight as a Roland TB-303 sequencer can, but you can emulate that synth tone using the XOX patch…


Check out that official EHX demo video below and hear it in action. Sounds pretty decent and could be well suited for use playing with a band that has no keyboard player but needs the odd synth tone for a song. Nice! The price is also pretty good, as it’s cheaper than many mono synths and MIDI guitar setups out there. Worth checking out, this.

RRP – EUR 135/GBP 115 inc EHX 9V DC mains adapter

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  • Electro Harmonix Bass Mono Synth - A TB-303 for your guitar? : Electro Harmonix
Electro-Harmonix Mono Synth Guitar Synthesizer

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