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Average Price: $286
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$150
$601+
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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
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What type of power supply does the Electro-Harmonix Micro Synth XO require?
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The Electro-Harmonix Micro Synth XO requires a 9V DC power supply, which is included with the pedal.
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Can the Electro-Harmonix Micro Synth XO be used with a bass guitar?
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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.
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How does the Electro-Harmonix Micro Synth XO differ from other guitar synth pedals?
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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.
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What are the main connectivity options for the Electro-Harmonix Micro Synth XO?
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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.
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What kind of sounds can I expect from the Electro-Harmonix Micro Synth XO?
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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.
Videos
ProGuitarShopDemos
Electro Harmonix Micro Synth
Reviews
PROS
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Versatile pedal with a wide range of synth sounds
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User-friendly layout allows for easy sound customization
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Effective at emulating classic synth tones
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Can convincingly turn an electric guitar into a bass
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Suitable for composition and creative exploration
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Works well with different music genres, including deep house
CONS
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Tracking issues with sustained notes and complex chords
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Takes time to master sensitivity to settings and playing style
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Requires precision for live performance use
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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
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The Micro Synth XO generates its own signal using internal oscillators controlled by the guitar's pitch, rather than altering the original guitar signal.
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Placing a compressor before the Micro Synth can restrict envelope following, as it limits dynamic response to a single envelope.
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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
Use cases and applications
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Pairing the Micro Synth with a clean boost can enhance lead tones, allowing seamless transitions between lead and rhythm in band settings.
Source
Critic Reviews
4.5 out of 5
Based on 3 Reviews and 19 Ratings
98
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.
138
Artist usage
Add artist
"I've also got an Electro-Harmonix Microsynth for those weird and funky guitar tones."
Seen on a pedalboard at a Future of the Left live show on 21/04/2016 at Electric Ballroom, London, UK.
In the Premier Guitar "Rig Rundown - Dr. Dog" video, Scott McMicken showcases his Electro-Harmonix Micro Synth XO pedal, which he modified by painting it silver. This can be seen at the 28:50 mark.
The Electro-Harmonix Micro Synth XO can be seen on Jay de la Cueva's pedalboard during the Machaca Fest 2018 performance with Moderatto, as captured in an image by Guitar Gear.
At 1:04:11 in the "Derek Wells Studio Rig Rundown Guitar Gear Tour" video by Premier Guitar, Derek Wells showcases the Electro-Harmonix Micro Synth as part of his pedal setup on his XTS Custom Pedalboard.
According to the 2019 Premier Guitar interview, Sharp uses the EHX MicroSynth XO pedal.
João Cabeleira uses the Electro-Harmonix Micro Synth XO, as evidenced by a user-uploaded photo on PeoplePill: https://peoplepill.com/people/joao-cabeleira/.
I took a picture of Nick Seymour's pedal board at the Crowded House show in Atlanta, GA on August 30, 2024, which shows the Electro-Harmonix Micro Synth Analog Guitar Synthesizer Pedal. 
In Royal Thunder's Rig Rundown in PremierGuitar, Josh shows us his EHX Micro Synth.
As the de-facto lead guitarist, er mando-man, Kang bounces between his Ron Oates Custom 5-string Octave Mandolin or Walker Electric 5-string Octave Mandolin. To amplify his custom 5-strings, he cranks up a Two-Rock Custom Reverb and Groove Tubes D75 Power Amp through a Bogner 2x12 cab. His two-board setup boasts a DigiTech XP100 Whammy Wah, a Electro-Harmonix Micro Metal Muff, a Electro-Harmonix Micro POG, a Electro-Harmonix Micro Synth, a Electro-Harmonix Q-Tron, a Line 6 DL4, a Keeley Phaser, a Fulltone Full-Drive 2, a Keeley-modded Ibanez TS808 Tube Screamer, a Keeley Katana Clean Boost, a Boss TU-2 Chromatic Tuner, a Maxon Compressor, a Ernie Ball Volume Pedal, a Roland GR-33 Guitar Synth, a TC Electronic G-Force, a Sarno Music Solutions Steel Guitar Black Box, and the boxes are powered by a Voodoo Lab Ground Control and a Voodoo Lab Pedal Power 2+. And his uses various Elixir strings and Fender Extra Heavy picks.
Album Usage
The Electro-Harmonix Micro Synth XO has been featured on the following albums:
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.
Community setups
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