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Average Price: $135
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$60
$201+
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Based on price data from 1 merchant for "Electro-Harmonix Stereo Clone Theory". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.
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Description
Discover the rich, immersive sound of the Electro-Harmonix XO Stereo Clone Theory, a true resurrection of the beloved Clone Theory Chorus/Vibrato pedal. As a member of the Electro-Harmonix XO die cast series, this compact pedal is housed in a robust, high-quality casing that's designed to endure even the most energetic performances.
This versatile pedal offers a wide range of tonal possibilities, from sparkling, dreamy chorus effects to deep, pulsating vibrato. Dial in your desired sound with the user-friendly controls, including Chorus/Vibrato mix, Rate, and Depth. Whether you're crafting delicate, shimmering arpeggios or driving power chords, the Electro-Harmonix XO Stereo Clone Theory can elevate your sound to new heights.
Key Features:
- Part of the Electro-Harmonix XO die cast series
- Compact, durable housing
- Provides chorus and vibrato effects
- Chorus/Vibrato mix, Rate, and Depth controls
- Stereo output for immersive sound
- Resurrects the popular Clone Theory Chorus/Vibrato pedal
Product specs
| Power | 9V |
| Bypass | true bypass |
| Analog/Digital | analog |
| Mono/Stereo | stereo |
Videos
ProGuitarShopDemos
Electro Harmonix Clone Theory
Electro Harmonix Clone Theory
ProGuitarShopDemos
Electro-Harmonix Stereo Clone Theory Analog Chorus / Vibrato Pedal (Demo by Larry DeMarco)
EHX
EHX CloneTheory demo - Vintage vs. New - Electro Harmonix Chorus Guitar Pedal
Carl Roa
Electro-Harmonix - Stereo Clone Theory - Demo by Larry DeMarco - Analog Chorus- Vibrato
JRR Shop
Electro Harmonix Stereo Clone Theory Guitar Effects Pedal
Gear4music Guitars
Reviews
PROS
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Authentic Hooky sound for Joy Division and New Order tones
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Buttery, full, and rich chorus without sounding artificial
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Offers adjustable depth in mode 2 for personalized sound
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Quick to dial in settings for immediate use
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Versatile with Chorus, Vibrato, and Flange sounds
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Compatible with both guitar and bass
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Analog sound quality stands out among digital options
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Durable components and well-soldered circuitry
CONS
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Adds noise to signal due to non-true-bypass nature
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Noise becomes apparent when quiet, requires workaround
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Can lose treble and presence without proper setup
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Hiss issue when paired with certain other effects
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Footswitch durability questionable in second-hand units
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First strum can sound disproportionately loud without a compressor
4.0 out of 5
Based on 4 Reviews and 26 Ratings
410
Dreamy
It's such a great pedal, dreamy watery chorus/vibrato. Perfect for everything from Peter Hook basslines to Nirvana. It's got a sound and nothing else quite sounds like it.
life-changing
I got this thing because I was new to guitar and wanted a chorus pedal I could use on both bass and guitar. I heard Peter Hook used this on most every New Order song and that was good enough for me (sure enough, you can instantly get those tones straight out the box). I wasn't looking to spend much so I got one second hand, but was surprised when it came with the original EHX battery bearing the sexiest man alive, Mike Matthews. What ensued was a Pixar-esque friendship between me and the vibrato setting, but the stereo chorus sound made for good competition. I wept real man tears when it's life was tragically cut short by the footswitch giving out (that's what I get for a cut-price second hand unit). I felt like I lost a part of me that day. All joking aside, it's a fantastic, simple and effective chorus/vibrato that still beats out a lot of today's best boutiques. Great value for money and a perfect first chorus pedal; I'd take this thing over the Small Clone any day of the week.
Preferred Settings + Usage:
The vibrato setting is simply brilliant, I used it as a subtle, always-on effect that adds a lot of depth to dirt and makes clean tones sound really spectacular.
158
Really nice analog Chorus sound
Nowadays you can find tons of pedal effects for modulation but nothing compares to analog sound of solid boxes. This pedal has three modes: 1. Chorus, which is set to an "optimal" factory standard determined by best practices. But you can configure the Rate from this effect 2- Chorus 2, in which you can modify Depth and Rate 3- Vibrato,in which you can also modify Depth and Rate
Final comment: you should be careful with the attack hit on your guitar on the first strum because if it's too loud it will make that one of the repeated sounds of the chorus/vibrato sounds too loud in comparison to the others. This could also be corrected with a compressor of course.
Artist usage
Add artist
According to Guitar Geek's rig diagram, he used this pedal.
In this interview with Music Radar, Matty Healy and Adam Hann talk about their guitar pedals and how they replicate the studio effects. Matt talks about some of the gear he uses: "I’m not as technical. I’ve got an Electro-Harmonix Clone Theory chorus, the Boss compressor, an Analogman Sun Face fuzz pedal, two small EHX Holy Grails and a Boss DD-3 delay. At the moment, I’m playing a Blackstar combo, the Artisan 30. Again, it’s very transparent. Then I’ve got a ’65 Mustang, a ’67 Mustang, a ’68 Mustang, and a ’78 Mustang." Original source here.
"Around the time of recording Closer was when I bought probably two of the most important things I’ve ever owned in terms of my sound – a Shergold Marathon 6-string bass and an Electro-Harmonix Clone Theory pedal. This was really when I started to shape my sound and develop my own styles of playing." - Peter Hook for PedalsandEffects.com
In an interview with Hook and Line Magazine, Emily Kokal mentions using the Electro-Harmonix XO Stereo Clone Theory pedal.
You can clearly see his Clone Theory (with setup) around 3:57 and then he talks about it at 5:44.
In the video titled "The AFI Rig Rundown You’ve Been Asking For," published by Premier Guitar on YouTube, the Electro-Harmonix Stereo Clone Theory Analog Chorus/Vibrato pedal is visibly attached to Jade Puget's secondary pedalboard at the 19:35 mark.
In an Instagram video shared by the official Los Bunkers account, Francisco Durán is seen discussing and showcasing the equipment he is using for the "Ven Aquí" tour, including the Electro-Harmonix XO Stereo Clone Theory pedal.
Ethel Cain is confirmed to use the Electro-Harmonix XO Stereo Clone Theory, as evidenced by a photograph shared on her official Instagram account, under the username mothercain. The image, captioned "polaroids from last week by my twin @crafty_caden," prominently features the pedal, providing clear proof of its use by the artist.
In an Instagram post by Vine Sauce on April 6, 2016, Vinny's Electro-Harmonix XO Stereo Clone Theory pedal is visible next to his Cathedral pedal, highlighting its use in his setup.
In a photo from Zimbio, Walter Schreifels is shown using the Electro-Harmonix XO Stereo Clone Theory chorus pedal.
In a user-uploaded photo, Jacob Tsafatinos' Electro-Harmonix XO Stereo Clone Theory is visible, positioned next to his Delay Llama and Box of Rock pedals. While its specific use in his setup isn't detailed, it might have been utilized by Kevin Walkman, who performed earlier.
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Album Usage
The Electro-Harmonix Stereo Clone Theory 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 Stereo Clone Theory, it is most commonly used with the following gear.
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