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Pricing and availability
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Average Price: $286
Standard/Professional
$150
$601+
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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
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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
Electro Harmonix Micro Synth
ProGuitarShopDemos
Electro-Harmonix MicroSynth Synthesizer
Prymaxe
Electro Harmonix Micro Synth
Pedal Experiments
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.
Source -
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
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In this 2019 interview with Premier Guitar magazine, Andy discussed his then-current use of physical guitar effects versus VSTs. "Having said all of that, there’s still some pedals I find it hard to give up, and they’re fiddly to use, like, for example, the Electro-Harmonix MicroSynth. I love that thing. The trouble is, you can’t play it and move the faders at the same time, and that’s kind of what you need to do. You can set it in one position, and it does some pretty great stuff, but when you start moving it around when it’s being played, it goes to another level."
In the YouTube video "Los Bunkers - Sesiones Alejandro Franco 2010," Francisco Durán uses the Electro-Harmonix Micro Synth XO pedal. This pedal is prominently featured in the album "Música Libre" (2010), particularly in the tracks "Sueño Con Serpientes" and "La Era Está Pariendo Un Corazón."
A close source has disclosed that Aaron North incorporated the Electro-Harmonix Micro Synth XO into his live setup while performing with Nine Inch Nails.
The item can be seen 0:15 into this video.
The Electro-Harmonix Microsynth. I love this sound. I just love it. It does the cool thing that guitar players just can not do: sound like a cello. And a fuzzed out crazy cello it we want. I give David Bottrill credit for getting me hooked on this one, too. We were mixing the cd "The Joy of Molybdenum" when some of the master tapes got lost in the mail. Which meant we didn't have enough material to complete the record. While Bob Muller was hunting down the UPS guy, Bottrill, Tony Geballe and I went into "fury" mode and recorded a new track. This became "Brief Encouter". Bob and I had already made the foundation months ago, but the track wasn't completed enough to warrant inclusion on the cd. However now we had no choice. David and I came up with a possible form and Tony laid down the acoustic guitar solo near the beginning. Then David pulled out his Microsynth which he got me to solo on for the ending. I was sold 1000%. It was a totally synthy sound that David didn't put any reverb on. David was like that - he could made an extremely dry sound fit into the mix. I've had one in my rig ever since. And while I must admit that Native Instruments Guitar Rig has a microsynth module that I now use onstage (because it is totally programmable), I still have to keep the analogue one here in my home studio, ready to go.
Visible in this May 18, 2018 Facebook post.
"I've also got an Electro-Harmonix Microsynth for those weird and funky guitar tones."
At 0:55, Cronise talks about the Micro Synth, which he uses on the intro to "Astraea's Dream".
Harun Tekin uses the Electro-Harmonix Micro Synth XO, as evidenced by its presence on his pedalboard, which is visible in an image provided on Equipboard. This pedal can also be heard in tracks like "Park."
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In an Instagram post titled "Tiny (Pedal) Dancer," Nick Wheeler showcases his use of the Electro-Harmonix Micro Synth XO guitar pedal.
Throughout this whole video, an Electro-Harmonix Micro Synth can be seen on Dhani's board.
In this article from Drowned In Sound, Jamie says "my job now often seems to be trying to make my guitar sound more like a synth. To do this I use an Electro Harmonix Microsynth and an Earthquaker Devices Bit Commander."
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.
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