Pedals and effects

Electro Harmonix Eddy Vibrato/Chorus

Analog vibrato and chorus sounds with deep control and great value, but noise issues and cramped interface should be considered.

★★★★☆ 4.3/5 · 20 buyer reviews · 7 min read · updated 2026-10-06 · Tested by Cal Whitaker

Overview: Electro Harmonix Eddy Vibrato/Chorus Features

The Electro Harmonix Eddy Vibrato/Chorus is a compact modulation pedal that combines both vibrato and chorus effects in an all-analog signal path. Available since early 2021 and priced under $100, the Eddy offers five main controls (Volume, Shape, Tone, Envelope, Rate, and Depth), plus an onboard footswitch for bypass. It includes a dedicated input for an expression pedal, enabling foot control over modulation speed or depth, a rarity at this price point. The pedal measures 114 by 70 by 53 mm and ships with its own regulated power adapter for convenience.

Controls and Modulation Options

Electro Harmonix equips the Eddy with a robust feature set for its category:

  • Analog bucket-brigade circuit ensuring vintage voicing
  • Envelope and expression pedal control for hands-free or touch-sensitive modulation
  • Continuously variable low-frequency oscillator curve (from classic sine to strongly asymmetric shapes)
  • Six dedicated knobs for in-depth editing:
    • Volume: Output level
    • Shape: LFO symmetry/waveform
    • Tone: Overall brightness
    • Envelope: Sensitivity to input dynamics
    • Rate: Modulation speed
    • Depth: Modulation intensity
  • Expression input allows assignment to either rate or depth
  • Status LEDs for effect on and rate speed
These controls push the Eddy beyond a basic modulation box, letting users dial everything from subtle movement to radical pitch bends. The ability to manipulate waveform symmetry is especially rare for analog pedals, enabling everything from shimmer to completely lopsided warble.

Sound and Practical Use: Vibrato and Chorus Character

On both vibrato and chorus settings, the analog architecture produces a warm, somewhat vintage color. The chorus effect is capable of lush, slow modulation for classic shimmer, or pushed into more pronounced, almost detuned textures with aggressive settings. While the vibrato can go from gentle modulation to extreme pitch sweeps, it is described as less dramatic than digital counterparts but more authentically "analog" in its movement and harmonic profile.

Many players note that the envelope control stands out, letting the modulation react to picking strength or input volume. This allows dynamic expression, subtle warble when playing softly, pronounced swoops when digging in, making it highly interactive. The expression pedal input is another major advantage. Assigning foot control to rate or depth unlocks evolving textures in real time, fitting for expressive soloing or ambient layers.

Strengths in Live and Studio Settings

  • Highly flexible modulation palette thanks to variable LFO shape and envelope control
  • Expression pedal input rarely seen in the sub-$100 range, especially on analog effects
  • Useful both for subtle modulations behind clean tones and chaotic pitch effects suited to experimental genres such as shoegaze, ambient, or psychedelic styles
  • Versatility extends across instruments, guitar, bass, synth and even vocals have been cited as use cases
  • Bundled, regulated power supply makes for hassle-free setup without buzz or hum typically associated with digital supplies

The Eddy's core analog voice is appreciated for musical warmth, and the wide modulation range makes it a solid creative tool. Some musicians report it surpasses more basic analog chorus boxes in both tone sculpting and modulation capabilities.

Limitations and User Critiques

  • Noticeable background noise ("white noise") reported at moderate to high settings, especially when paired with heavy distortion or high gain. This is a recurring complaint, with noise sometimes intruding over quiet parts or clean passages.
  • Pedal's footswitch lacks an audible click and has inconsistent actuation. Some users find it fails to activate reliably unless visually checked.
  • The tiny control knobs, while practical for compactness, can be hard to adjust on the fly and are a challenge for players with bigger hands or when setting changes are needed during performance.
  • Some loss of high frequencies and output volume in vibrato mode. This can subtly thin the sound or require compensation with EQ or boosted output downstream.
  • Mono-only design, no stereo outs, which limits spaciousness for modern pedalboard users (though at this price, that limitation is expected).
  • Inconsistent performance with bass, especially on extended-range models. Some users note a lack of depth on lower strings and improper handling of synthetic subharmonics from octave pedals.

While the chorus effect is generally well-received, some find it less deep or "full" compared to larger or pricier units. Still, the balance of features keeps the Eddy competitive, especially in the analog market segment.

Comparison: Value and Application

The combination of analog bucket-brigade tone, powerful modulation shaping, envelope sensitivity, and expression pedal support is unmatched at the Eddy's price point. Although there are quieter or fuller-sounding analog choruses (such as the Small Clone), few offer as much flexibility or hands-on real-time control. Digital pedals like the Electro Harmonix Mod 11 deliver more pronounced or "wild" effects, but can lack the organic texture of the analog Eddy.

Summary: Who Should Consider the Eddy?

The Electro Harmonix Eddy Vibrato/Chorus is best suited for players who want an affordable, flexible analog modulation pedal, and are willing to accommodate some noise and operational quirks. Its creative modulation control will appeal to experimental guitarists, pedal tweakers, and musicians who actively use expression pedals. If lush, simple chorus is your only priority or you demand zero noise for sensitive recording, you might look elsewhere. However, for analog fans on a budget who want maximum tweakability and expressive options, the Eddy provides a unique toolset, especially at its price.

For hands-on analog modulation with real-time creative options, the Eddy is hard to beat under $100, if you can live with some analog imperfections.
Electro Harmonix Eddy Vibrato/Chorus, front view
7.0/ 10 overall score
$96current price at the retailer
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Shipping and duties

The retailer ships from its warehouse in Germany. Prices are shown in US dollars and do not include import duties. Orders under roughly $800 usually clear US customs without duty; above that, a duty of a few percent may be collected on delivery. 30-day money-back and a 3-year warranty apply.

Scores by area

Where it shines, where it stumbles

What convinced me

  • Extremely versatile modulation controls, including shape warping and envelope sensitivity
  • Rich, animated analog chorus and vibrato tones with wide range from subtle to experimental
  • Includes expression pedal input for hands-free effect manipulation
  • Solid value at this price; power supply included
  • Compact and easily portable

What bugged me

  • Noticeable noise floor, especially with distortion or at higher gain settings
  • Miniature knobs can be cramped and difficult to adjust precisely
  • Bypass footswitch lacks tactile feedback and can be unreliable
  • Mono output only; no stereo capability at this price
  • Vibrato may lead to loss of high frequencies and volume drop

Is it the right one for you?

Good pick if

Ideal for experimental guitarists, home recordists, and players seeking hands-on modulation with analog character. Excellent for those who want affordable access to a wide palette of chorus/vibrato effects and creative envelope or expression pedal control.

Look elsewhere if

Not recommended for stage musicians needing silent operation or instantly accessible controls, or for players who demand pristine clarity on bass or distortion-heavy styles. Those wanting stereo outputs or robust tactile ergonomics may prefer other options.
Indie RockShoegazeJazzPsychedelicAmbient

Suggested level: Intermediate

Electro Harmonix Eddy Vibrato/Chorus, $96Affiliate link, your price does not change.Check today's price →

Specifications

Chorus
Yes
Flanger
No
Phaser
No
Effect types
Vibrato

What other players say

Customer feedback is mixed but leans positive, highlighting the Eddy's advanced modulation flexibility, expressive analog sounds, and affordable price. Many users appreciate the envelope and waveform control for unique vibrato and chorus textures, enhanced further with the expression pedal input. Some criticize the unit's noise floor, cramped mini controls, occasional reliability issues with the footswitch, and audible signal loss with certain instruments. While the pedal receives praise for versatility and sonic possibilities, buyers focused on immaculate signal clarity and on-stage ergonomics express reservations.

5 ★
40%
4 ★
30%
3 ★
15%
2 ★
10%
1 ★
5%
Positive 60% Neutral 20% Negative 20%
The envelope control is particularly interesting because the modulation can react to how hard you play.
The chorus, and especially the vibrato sounds are not at all what I was looking for, they sound a bit off with any distortion. And the white noise it produces when turned on really annoys me.
Analog sound, waveform setting and envelopes make the difference for vibrato lovers. And the biggest reason to keep it for me is the expression input (not on MOD11). That's really nice.

Up close

Electro Harmonix Eddy Vibrato/Chorus, detail 2Electro Harmonix Eddy Vibrato/Chorus, detail 3Electro Harmonix Eddy Vibrato/Chorus, detail 4Electro Harmonix Eddy Vibrato/Chorus, detail 5

Watch and listen

Watch the video demo on YouTube →

Questions players ask

Does the Electro Harmonix Eddy work well with both guitar and bass?

It performs well on guitar and provides interesting options for bass, though some users report loss of depth on low B and E strings with five-string basses.

Is the pedal noisy?

Many users report a noticeable noise floor, particularly with distortion or high output settings. This may not be suitable for players with strict demands for silent operation.

How customizable is the modulation?

The Eddy offers extensive control with adjustable shape, envelope sensitivity, and rate/depth options. The modulation shape can be warped from symmetry to extreme shapes, supporting broad creative applications.

How reliable and ergonomic is the hardware?

The controls are compact and somewhat stiff, which can make fast adjustments difficult during performance. The bypass switch lacks a click, which some found frustrating or unreliable.

Is an expression pedal connection available?

Yes, the Eddy includes a dedicated expression input, allowing real-time control of rate or depth for further musical expression.

The last word from the bench

The Electro Harmonix Eddy Vibrato/Chorus stands out for its flexible modulation features and characterful analog sound, catering to creative players who want hands-on control. The expression pedal input and advanced envelope/LFO shaping set it apart in its price range. Still, the pedal is noisy at higher gains and the compact, stiff interface hinders fast adjustments. If you need deep modulation options and accept a few hardware trade-offs, it's a strong pick, but those sensitive to noise or needing stage-ready ergonomics will likely want to look elsewhere.

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Electro Harmonix Eddy Vibrato/Chorus

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