Pricing and availability

We compare 600+ stores and found this item at 6 stores. Prices updated .

Sweetwater
4.5 (2)
$324.80
Amazon
3.2 (21)
$305.00
Reverb
5.0 (8)
$324.80 New
$170.00 Used
zZounds
4.0 (5)
$324.80
Gear4Music
£288.00

Average Price: $285

Standard/Professional

$150

$601+

Price Tier

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Standard

High-end

Price History

Based on price data from 2 merchants for "Electro-Harmonix Micro Synth XO". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

Introducing the Electro-Harmonix Micro Synth XO, a versatile tool for any guitarist looking to explore the realm of synthesizer effects. It's more than just a pedal - it's a creative powerhouse designed to unlock a universe of sonic possibilities.

This compact, all-analog synth pedal is capable of generating a broad spectrum of sounds, from the classic vintage warmth of early Moog synthesizers to innovative custom creations that push the boundaries of music. With ten slider controls, you can craft an almost infinite array of analog synth sounds tailored to your unique style.

The Micro Synth XO boasts four mixable voices: Guitar, Octave, Sub-Octave, and Square Wave, each offering a different character to enrich your sound. The envelope control modifies these signals to produce a variety of 'bowed' or 'blown' sounds, resulting in an audioscape that's as dynamic as it is diverse.

Key Features:

  • XO Series chassis for robust performance
  • True bypass for maintaining signal integrity when not in use
  • All analog design for warm, rich sounds
  • 2-pole analog resonant filter for added tonal shaping
  • 4 voice mixer section mixes: sub octave, original, octave up and square wave
  • Square wave voice can be used as a distortion tone
  • Start, stop filter frequency sliders with adjustable rate for full control over the filter's sweep direction and speed
  • Adjustable filter resonance control for fine-tuning your sound
  • Adjustable attack time control for fading-in notes
  • Tough and compact die-cast chassis for durability
  • 96DC-200BI power supply included for convenience

With the Electro-Harmonix Micro Synth XO, you'll break new sonic ground and redefine what's possible with a guitar. Experience it today and inspire your music with the power of synthesis!

Product specs

Pedal Type Guitar Synth
Inputs 1 x 1/4"
Outputs 1 x 1/4"
Power Source 9V DC power supply (included)
Height 3.5"
Width 8"
Depth 7"
Weight 2 lbs.

FAQs

What type of power supply does the Electro-Harmonix Micro Synth XO require?

The Electro-Harmonix Micro Synth XO requires a 9V DC power supply, which is included with the pedal.

Can the Electro-Harmonix Micro Synth XO be used with a bass guitar?

Yes, the Electro-Harmonix Micro Synth XO can be used with a bass guitar, offering a wide range of synth-like tones suitable for both guitar and bass.

How does the Electro-Harmonix Micro Synth XO differ from other guitar synth pedals?

The Electro-Harmonix Micro Synth XO offers unique features like a built-in analog synth engine with adjustable filters, envelope controls, and octave capabilities, providing a wide array of customizable synth sounds.

What are the main connectivity options for the Electro-Harmonix Micro Synth XO?

The Electro-Harmonix Micro Synth XO features a single 1/4" input and a 1/4" output, making it easy to integrate into your pedalboard setup.

What kind of sounds can I expect from the Electro-Harmonix Micro Synth XO?

The Electro-Harmonix Micro Synth XO provides a range of vintage analog synth tones, including fat square waves, sub-octave bass, and dynamic filter sweeps, ideal for experimental and classic synth sounds.

ProGuitarShopDemos

ProGuitarShopDemos

Electro Harmonix Micro Synth

Video thumbnail for Electro Harmonix Micro Synth by ProGuitarShopDemos

Electro Harmonix Micro Synth

ProGuitarShopDemos

ProGuitarShopDemos

Video thumbnail for Electro-Harmonix MicroSynth Synthesizer by Prymaxe

Electro-Harmonix MicroSynth Synthesizer

Prymaxe

Prymaxe

Video thumbnail for Electro Harmonix Micro Synth by Pedal Experiments

Electro Harmonix Micro Synth

Pedal Experiments

Pedal Experiments

Reviews

PROS

  • Versatile pedal with a wide range of synth sounds

  • User-friendly layout allows for easy sound customization

  • Effective at emulating classic synth tones

  • Can convincingly turn an electric guitar into a bass

  • Suitable for composition and creative exploration

  • Works well with different music genres, including deep house

CONS

  • Tracking issues with sustained notes and complex chords

  • Takes time to master sensitivity to settings and playing style

  • Requires precision for live performance use

  • Not ideal for typical rock guitar setups or conservative styles

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Electro-Harmonix Micro Synth XO.

Features and functionality

  • The Micro Synth XO generates its own signal using internal oscillators controlled by the guitar's pitch, rather than altering the original guitar signal.

    Source
  • Placing a compressor before the Micro Synth can restrict envelope following, as it limits dynamic response to a single envelope.

    Source
  • The gain adjustment on the Micro Synth XO is extremely sensitive and can significantly alter the sound, requiring careful fine-tuning to avoid unwanted effects.

    Source

Setup and maintenance

  • Optimal placement is at the front of the chain to ensure clean tracking; placing effects like wah or overdrive beforehand can disrupt tracking performance.

    Source
  • Sound cut-off issues occur when the input volume drops below the pedal's synthesis threshold, impacting sustain performance.

    Source

Use cases and applications

  • Pairing the Micro Synth with a clean boost can enhance lead tones, allowing seamless transitions between lead and rhythm in band settings.

    Source

User experience

  • One owner described the pedal's malfunction as producing a "quacking" sound when tested with multiple guitars and patch cords, suggesting potential inconsistencies or defects.

    Source

Critic Reviews

Electro-Harmonix Micro Synth XO - Analog Guitar Synthesizer - Review

guitarpickreviews.com

Electro-Harmonix dazzles with the Micro Synth XO, a pedal that channels the spirit of synth legends, offering guitarists a vast sonic palette with its ten intuitive sliders. Its robust build and analog effects maintain artistic integrity, setting it apart from more mundane offerings. Perfect for serious players and effect enthusiasts, this pedal promises a transformative experience akin to legendary synths. While its size and complexity may intimidate some, the creative potential is unmatched for those willing to explore. A worthy investment for those committed to expanding their musical horizons.

positive
Add

4.5 out of 5

Based on 3 Reviews and 19 Ratings

5 star
4 star
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Y

Sick Tones

This pedal has enormous range of sounds in it. When you play with some of the sliders, they change all the characteristics of the sound this pedal produces. Sure, i bought it for 1100 TL means 350 USD and i am sure that i can always use it when i need a strange, 70's, fuzzy, ..... kinda synth sounds. Plus i can use it with deep house music too, so check it out if you see one.

manolarra

electro harmonix

impresionante, parece mentira que saque esos sonidos.

L

Good fat sound mix with a muff style fuzz

Good fat sound mix with a muff style fuzz

Artist usage

Add artist
See how John Mayer uses Electro-Harmonix Micro Synth XO

John Mayer

Guitarist

John Mayer Trio

...
Verified via YouTube

Guitarist and musician John Mayer uses the Electro-Harmonix MicroSynth XO Guitar Effects Pedal in his pedalboard.

See how The Edge uses Electro-Harmonix Micro Synth XO

The Edge

Guitarist

U2

...
Verified

In an interview published in Guitar Player magazine (January 2001), The Edge confirmed the use of the Electro-Harmonix Micro Synth XO: "On 'When I Look at the World', I'm using an Electro-Harmonix Micro Synthesizer for that mad distorted tone."

See how Joe Satriani uses Electro-Harmonix Micro Synth XO

Joe Satriani

Guitarist

Mark Knopfler’s Guitar Heroes

...
Verified via Reverb

Sold on Reverb.com via Bananas at Large.

See how Albert Hammond Jr uses Electro-Harmonix Micro Synth XO

Albert Hammond Jr

Singer, Guitarist

The Strokes

...
Verified via Twitter

In this photo from Albert Hammond, Jr's official Twitter page, his pedal-board includes an Electro-Harmonix MicroSynth XO guitar effects pedal.

See how Colin Greenwood uses Electro-Harmonix Micro Synth XO

Colin Greenwood

Bassist

Radiohead

...
Verified via YouTube

Colin Greenwood is confirmed to use the Electro-Harmonix Micro Synth XO, as evidenced by a detailed breakdown of his pedalboard in the YouTube video "Radiohead Pedalboard Designs, Builds and Gig Ed O'Brien and Colin Greenwood," created by TheGigRig. The video provides an in-depth look at the gear used by Radiohead members, including Colin's specific setup.

See how John Squire uses Electro-Harmonix Micro Synth XO

John Squire

Guitarist

Oasis

...
Verified via Photo

John Squire used the EHX Micro Synth XO pedal on tour with The Stone Roses. The pedal was verified by Squire's guitar tech and went on sale online at Denmark Street Guitars.

See how Lou Reed uses Electro-Harmonix Micro Synth XO

Lou Reed

Singer, Guitarist

The Velvet Underground

...
Verified via Petecornish

Used in his Metal Machine Trio tour, clearly seen on the right. Picture © Pete Cornish: http://www.petecornish.co.uk/GreySeries.html.

See how John Scofield uses Electro-Harmonix Micro Synth XO

John Scofield

Guitarist, Composer

Medeski Martin & Wood

...
Verified via YouTube

John Scofield also uses an Electro-Harmonix Microsynth. “which is a real bizarre kind of Electroharmonix pedal which gets this cool sound that I like once in awhile,” (10:01).

See how Simon Neil uses Electro-Harmonix Micro Synth XO

Simon Neil

Singer, Guitarist

Biffy Clyro

...
Verified via Photo

The second-last slide of an Instagram post by the official Biffy Clyro Instagram account, featuring behind-the-scenes photos / clips from the Futique recording sessions, shows the Electro-Harmonix Micro Synth XO pedal on a table among many other pedals.

See how Ludwig Göransson uses Electro-Harmonix Micro Synth XO

Ludwig Göransson

Composer, Music Producer

...
Verified via YouTube

Shown at 1:59 in The Making of Childish Gambino’s Redbone.

See how James "Munky" Shaffer uses Electro-Harmonix Micro Synth XO

James "Munky" Shaffer

Guitarist

Korn

...
Verified via YouTube

"The MicroSynth is cool. It has a really quiet output when there's nothing going on, so I think there's a gate in there, I'm not sure. We get a crunchy synth sound out of that one, it sounds really cool." – Jim Otell (Munky's guitar tech) on the Electro-Harmonix MicroSynth XO Guitar Effects Pedal. This pedal is also mentioned in the 2020 Premier Guitar interview.

See how Sergio Pizzorno uses Electro-Harmonix Micro Synth XO

Sergio Pizzorno

Guitarist, Keyboardist

Kasabian

...
Verified via Photo

An Electro-Harmonix MicroSynth can be seen on Sergio Pizzorno's pedalboard, in this photo, from this collection, for Total Guitar Magazine.

Genre Usage

Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.

Used With

Based on how musicians on Equipboard use Electro-Harmonix Micro Synth XO, it is most commonly used with the following gear.

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Community setups

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Gear IQ 937

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