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Average Price: $315
High-end/Boutique
$60
$201+
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Description
Discover a symphony of sound with the Electro-Harmonix Stereo Polychorus, your one-stop destination for a plethora of versatile chorus effects. This iconic pedal, adored by industry legends such as Kurt Cobain and Adrian Belew, is an all-purpose tool, capable of generating everything from a tunable comb filter to sweeping echo and a convincing simulation of the classic "ADT" effect. Its user-friendly design and switchable filter make it a must-have for any musician looking to explore new sonic landscapes.
Key Features:
- Four chorus modes for diverse sound options
- Switchable filter for enhanced control
- Capable of producing a range of effects from tunable comb filter to sweeping echo
- Emulates the classic "ADT" effect
- Loved and used by famous musicians like Kurt Cobain and Adrian Belew
- User-friendly design suitable for both beginners and professionals
Product specs
| Brand | Electro-Harmonix |
| Model | Stereo Polychorus Analog / Chorus / Flanger / Slapback Echo |
| Finish | Green |
| Year | 2011 - 2023 |
| Categories | Chorus and Vibrato, Flanger Pedals |
FAQs
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What effects can the Electro-Harmonix Stereo Polychorus produce?
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The Electro-Harmonix Stereo Polychorus offers a range of effects including chorus, flanger, and slapback echo, making it versatile for various soundscapes.
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Is the Electro-Harmonix Stereo Polychorus suitable for stereo setups?
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Yes, the Electro-Harmonix Stereo Polychorus is designed for stereo use, allowing you to utilize its full range of modulation effects in a stereo setup.
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How does the flanger effect on the Stereo Polychorus compare to other flanger pedals?
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The flanger effect on the Stereo Polychorus is known for its rich, analog sound and flexibility, offering a wider range of modulation compared to many standard flanger pedals.
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Can the Electro-Harmonix Stereo Polychorus be used with a bass guitar?
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Yes, the Electro-Harmonix Stereo Polychorus works well with bass guitars, providing deep, lush modulation effects that enhance the bass sound.
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Does the Electro-Harmonix Stereo Polychorus require a specific power supply?
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The Electro-Harmonix Stereo Polychorus typically requires a standard 9V power supply, but it's always best to check the product specifications for compatibility.
Videos
ProGuitarShopDemos
Electro Harmonix Stereo Polychorus Pedal
Electro Harmonix Stereo Polychorus Pedal
ProGuitarShopDemos
Electro-Harmonix Stereo Polychorus Analog Flanger / Chorus Pedal (Demo by Bill Ruppert)
EHX
EHX PolyChorus Demo - Vintage vs. New - Electro Harmonix Guitar Chorus Pedal
Carl Roa
EHX Stereo Polychorus in 100 Seconds
docSanchezFX
KURT COBAIN'S In Utero guitar pedal? EHX Poly Chorus Effin' With Pedals 003
NO SHRED ZONE
Electro-Harmonix Stereo Polychorus Demo
Gear4music Guitars
Reviews
PROS
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Offers intense chorus and flanger effects
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Unique 12 string simulator/doubler feature
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Features a distinct filter matrix sound
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Versatile, from classic tones to pitchbending madness
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High-quality, unique tones different from other chorus pedals
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Can replicate iconic Nirvana guitar sounds
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Well-made remake of the original model
CONS
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Vintage version is preferred for its more natural sound
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Learning curve due to its six controls
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Takes up valuable space on a pedalboard
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Always a hint of slapback delay even at minimum settings
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Flanger mode is milder compared to typical built-in flangers
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Electro-Harmonix Stereo Polychorus.
Features and functionality
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The Polychorus offers a unique double track function with shorter delay times, ideal for creating distinct room and slapback effects.
Source -
Both the chorus and flanger modes include a short delay sound, even with the feedback knob turned down, which can be polarizing depending on pedal combinations.
Source -
The Polychorus offers four distinct modes: Double Track, Chorus, Flanger, and Filter Matrix, providing extensive control over width, rate, and feedback for varied modulation effects.
Source -
The FULL DOUBLE TRACKER pedal replicates the Polychorus's double track function but offers only one knob for parameter control versus four on the Polychorus.
Source
Comparisons
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The Small Clone can mimic the Polychorus's sounds when the depth switch is adjusted, providing a similar experience minus the delayed quality.
Source -
The Ibanez AD-220 rack unit can approximate the flanger sound of the Polychorus but lacks the pedalboard-friendly design and double tracking capability.
Source -
Madebymike produces small batches of Echoflanger clones, but these are rare and costly, reflecting the high component costs of the original circuit.
Source
Use cases and applications
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Essential for replicating specific Nirvana songs, notably "Radio Friendly Unit Shifter," due to its distinctive sound profile.
Source -
The pedal is suited for creating extreme modulation and experimental sounds, but may not serve as a standard modulation option for every player.
Source -
Ideal for achieving a late '70s to early '80s sound, reminiscent of guitarists like Alex Lifeson and John McGeoch, especially when used with two amps for stereo effects.
Source
Value and pricing
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Owners find the Polychorus to be a valuable investment despite its cost, considering the wide range of unique modulation effects it offers.
Source -
EHX ceased production of the Polychorus due to low profit margins and declining sales, with current prices increasing due to scarcity and component rarity.
Source
Build quality
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Some users prefer the aesthetic of older EHX enclosures for their perceived superior sound quality, noting the new design's resemblance to a billboard-like appearance.
Source
4.5 out of 5
Based on 4 Reviews and 19 Ratings
176
Warm - Liquid - Robotic - Alien
Everything from warm lush flange chorus to robotic filter matrix to oscillating ufo sounds. The Cobain sound is there but it's not a sound I use often. it's quiet easy to dial trippy unique sounds out of this thing leaving a sonic fingerprint on any music you play. Love this pedal and regulary use it in my rig. The only downside for me is it can take up valuable space if you like to squeeze a heap of pedals on your board.
256
top of the line analog chorus/flanger
very well made remake of the original model. All the sounds are there. I have recently played of modulation so its not getting used to much
41016
how is it at regular chorusing? is it tonally similar to your small clone?
126
very similar to the small clone
Artist usage
Add artist
"Here's a short experimental video by Radiohead's Thom Yorke -- look carefully, and you'll spot his Frequency Analyzer, Stereo Polychorus, and Big Muff Pi."
In this 1996 Guitar Player interview, Robin Guthrie says: "on 1983's Head Over Heels, some of the guitar sounds were played through an Electro-Harmonix Poly Chorus, which has a feedback control. If you turn up the feedback control as you're playing, the unit starts to take off by itself. I could stop playing after a while and the sound would just carry on."
Visible in Stompbox: 100 Pedals of the World's Greatest Guitarists, as can be seen in the quick browse video at 0:08.
In the D'Addario Extended Play video where Marc Ribot performs alongside Mdou Moctar, the presence of an Electro-Harmonix Stereo Polychorus on Ribot's pedalboard is clearly identifiable. The distinct form factor and color scheme of the pedal are unmistakable, confirming its use by the artist. The video is provided by D'Addario and Co. on YouTube and showcases the performance of "Tala Tannam" from the album "Afrique Victime."
The photo of Gene Ween's 2003 rig clearly shows the Electro-Harmonix Stereo Polychorus, confirming its use in his setup.
It can be seen next of the Phase 100 and the Roland Space Echo pedal on Jon's pedalboard
On the Reverb site Deb Demure talks about his guitars, pedals, amps, synths and softwares he uses in Drab Majesty
At 0:14 in this video, there is a glimpse of Eoin's board, which includes the Electro-Harmonix Polychorus pedal.
Premier Guitar continues their list of pedals that Aaron uses, next up the Electro-Harmonix Stereo Polychorus. Source.
Wheeler posted multiple photographs of his pedalboard on his Instagram with the caption "I’ve been rebuilding this spaceship over the last few months. Anyone want to go to outer space?". One of the pedals that are part of his pedal collection is the EHX Stereo Polychorus.
Album Usage
The Electro-Harmonix Stereo Polychorus 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 Polychorus, it is most commonly used with the following gear.
Community setups
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