Electro-Harmonix unveils Pico Atomic Cluster spectral decomposer pedal
November 13, 2025 · 2 sources
Electro-Harmonix has introduced the Pico Atomic Cluster, a compact pedal the maker presents as a Sonic De-Rezzer and Atomic Frequencies Oscillator1. Gearnews reported the launch on November 13, 2025, and noted that unlike many other pedals in the Pico series it is an original idea rather than a smaller version of an existing EHX pedal2.
The pedal breaks the signal into lower-resolution oscillations. Guitar Pedal X writes that the right-hand Atoms knob "breaks the signal frequencies down into lower resolution oscillations," and that with the Speed and Atoms knobs fully clockwise the pedal gives a full-resolution rendering of the dry signal, with resolution falling as both are turned counter-clockwise1. The Speed knob controls the frequency of oscillation refreshes1. Gearnews describes the Atomic control as the most important dial, determining "the number of resonant oscillations at a given moment," and says that fully turned left the pedal sounds like a couple of fluttery sine waves2.
Guitar Pedal X reports that the two core knobs produce Lo-Fi Rhythmic Glitches, Auto-Arpeggiation and Ambient Synthetic Pads1. A Mode push-button switches between two oscillation transitions, Red for Sharp and Green for Smooth1. Gearnews describes Sharp as the glitchy, fluttery mode and Smooth as more textural and pad-like2. Blend sets the dry/wet mix and Volume the output level12. Tap tempo runs from the single footswitch, triggered by at least two presses in quick succession, and can be disabled through power-up settings1.
| Specification | Detail |
|---|---|
| Controls | Mode, Output Level, Dry > Wet Mix, Speed, Atoms1 |
| Modes | Red Sharp, Green Smooth1 |
| Tap tempo | Single footswitch, at least two quick presses1 |
| Ports | TS In, 9V DC [-] 100mA, TS Out1 |
| US price | $1291 |
Guitar Pedal X puts the price at $129 on the EHX Webstore1. Gearnews lists the pedal at 129 euros at Thomann and shows a dollar figure of $111.00 in its affiliate widget2; the two outlets do not state the same US price.
"The Pico Atomic Cluster can do two types of sounds: either more fluttery, glitchy “atomic” sounds or more pad-like, hazy textures."
Gearnews describes the pedal as adjacent to Chase Bliss territory sonically but in a smaller, more approachable design, and places it alongside synth pedals in its appeal to guitars and synths2. Guitar Pedal X calls it adjacent to granular and glitch pedals1.