Electro Harmonix Pico Atomic Cluster Spectral Decomposer Pedal

Name: Electro Harmonix Pico Atomic Cluster Spectral Decomposer Pedal
Brand: Electro Harmonix
SKU: PICOAC
Availability: InStock

Retailing in the region of £129.99

Also available on Amazon, eBay & Reverb

On the menu for January 2026 are the Electro Harmonix Guitar Pedals, freshly added and carefully selected. These New units are available to order online with fast, secure delivery from trusted UK retailers. Read on for full details, specifications, demos, videos, reviews, and the best places to buy the Electro Harmonix Guitar Pedals today.

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Description
Additional information

Description

The Electro-Harmonix Atomic Cluster Spectral Decomposer is a pedal that’s unlike anything EHX has ever cooked up before! This mini glitch and synth machine takes your signal, tears it apart, and rebuilds it into a kaleidoscope of musical and downright quirky textures. Thanks to its clever algorithm, it reduces your instrument’s frequency resolution and transforms it into everything from lo-fi rhythmic glitches and auto-arpeggio tones to lush ambient synth pads.

Dial in your sonic chaos!

The Atomic Cluster gives you two main controls to shape the madness:

Atoms: Decides how many resonant oscillations are happening at once. Crank it up for a tone that’s closer to your original signal, or turn it down for pixelated, glitchy goodness.
Speed: Controls how fast those oscillations refresh. Slow settings give you rhythmic, step-filter vibes, while fast ones unleash unpredictable, random effects. You can even set Speed via tap tempo for perfect timing.

Extra Volume and Blend knobs let you tweak your output level and wet/dry mix. While the Mode button flips between Sharp (snappy, rhythmic transitions) and Smooth (lush, gradual fades) for two distinct flavours of otherworldly weirdness.

Key Features

Unique algorithm: Reduces the frequency resolution of your instrument, generating resonant oscillations directly related to your input signal.
Atoms control: Governs how many oscillations are produced at a given moment.
Speed knob: Sets how quickly the algorithm refreshes the oscillations it produces. This can also be controlled via tap-tempo.
Mode button: Toggles between Sharp and Smooth oscillation transition modes.
Included power supply: Run the pedal using your board’s PSU or rely on the power supply that comes with it. It’s up to you!

Specifications

Circuit: Digital
Bypass: Buffered
Audio: Mono
Power Supply: 9.6V DC, 200 mA power adapter (included)
Current Draw: 100mA
Dimensions: 3.65 x 2.0 x 2.0 inches

Additional information

Weight	0.8 kg

Brand

Electro Harmonix

Electro-Harmonix (EHX) is a legendary manufacturer of guitar pedals and audio electronics, renowned for their distinctive sound and pioneering designs. Established in 1968 by Mike Matthews, EHX has played a significant role in shaping the landscape of effects pedals. The company’s pedals are celebrated for their innovative circuits and unique tones, earning them a dedicated following among musicians across genres. From classics like the Big Muff Pi fuzz to modern favorites like the POG octave generator, Electro-Harmonix pedals are known for their versatility and sonic character.

EHX’s product lineup spans a wide range of effects categories, including distortion, modulation, delay, and reverb, among others. Their pedals often feature intuitive controls and rugged construction, making them suitable for both stage and studio use. In addition to their iconic standalone pedals, Electro-Harmonix has also produced notable units such as the Memory Man delay/echo and the Holy Grail reverb, which have become staples in many guitarist’s rigs. With a legacy of innovation and a commitment to quality, Electro-Harmonix continues to be a leading force in the world of guitar effects, inspiring musicians to explore new sonic possibilities.

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Electro Harmonix Pico Atomic Cluster Spectral Decomposer Pedal