The EHX Pico Shimmer is a supersonic traveler to the swirling, gleaming edges of ambience. Featuring 3 atmospheric reverb modes, infinite reverb, & secondary knob functions for added control
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Some pedals sit quietly on your board doing their one job. The EHX Pico Shimmer showed up with a telescope, a synthesizer, and three distinct personalities — and it has absolutely no intention of blending into the background.
Built on the shimmer DNA of EHX's award-winning Oceans Reverb series, this compact reverb pedal packs reverb, modulation, delay, and synthesis into a housing small enough to lose in your gig bag. It doesn't just add space to your sound. It adds a whole galaxy.
Three Scenes, Three Universes
Forget one-size-fits-all reverb. The Pico Shimmer gives you three distinct Scenes to work with, each built around a completely different sonic character. Flipping between them is like switching between three alternate dimensions — each one weirder and more wonderful than the last.
Intergalactic: The classic shimmer experience, powered by polyphonic octaves, plate reverb, modulated delay, compression, and a string synthesis engine that makes your guitar sound like it has a full orchestral backing band on standby.
Off-World: A smoother, mellower shimmer loaded with vintage synthesizer textures and enhanced delay modulation — for when you want your sound to orbit gently rather than rocket into orbit.
Etherdust: A glitch shimmer where the delay time randomizes itself into granular sparkles and stutter echoes. It's controlled chaos, and it sounds exactly as cool as it sounds.
Straightforward Controls, Serious Depth
Despite its compact size, the Pico Shimmer isn't shy about control options. The knob layout is clean and intuitive, and once you unlock the Secondary Knob Functions, you realize there's a whole second layer of sound-shaping sitting just beneath the surface. It's like discovering a secret menu at your favorite restaurant, except this one involves modulation depth.
VOICE Knob: Morphs your reverb character smoothly between clean plate reverb, classic shimmer, and full ethereal string effects — covering everything from subtle spatial depth to full-on cinematic ambience.
BLEND & TONE Controls: BLEND adjusts the wet/dry ratio for dialing in exactly how deep you want to fall into the effect, while TONE shapes the overall brightness so your shimmer sits perfectly in any mix.
Secondary Knob Functions: A press-and-hold of the SCENE button unlocks adjustable reverb mix, delay time, and modulation depth and rate — giving you surgical control without cluttering the pedal's footprint with extra knobs.
Infinite Reverb and Bypass Flexibility
Hold the footswitch. Watch what happens. The Pico Shimmer lets you access Infinite Reverb on the fly for massive, sustaining pad-like washes that could make even the most stoic guitarist forget what song they're playing. Beyond that party trick, the pedal also handles bypass in three distinct ways — because one bypass mode is clearly for people who settle.
Press-and-Hold Infinite Reverb: Maxing out the TIME knob or holding the footswitch triggers infinite reverb on demand, turning your guitar into a pad instrument whenever the moment calls for it.
Three Buffered Bypass Modes: Choose between Digital Bypass, Analog Bypass, and Hybrid Bypass depending on how your signal chain is set up — keeping your tone intact no matter what comes before or after it on the board.
Power Adapter Included: Yes, EHX actually included the power adapter. No hunting through a drawer of mismatched adapters at midnight before a gig.
A Shimmer Reverb Pedal Built for Explorers
The EHX Pico Shimmer is the rare compact pedal that genuinely punches above its weight class without making a big deal about it. Three distinct shimmer reverb Scenes, deep secondary controls, Infinite Reverb access, and flexible bypass options — all wrapped in a board-friendly enclosure. It's built for players who want more than just reverb, and it delivers every time you step on it.
EHX Pico Shimmer Features:
Compact shimmer reverb pedal with three Scenes: Intergalactic, Off-World, and Etherdust
VOICE knob morphs reverb character from plate to shimmer to synth string effects
BLEND knob sets wet/dry mix for precise effect balance
TIME knob controls decay from short to infinite reverb
TONE knob adjusts overall brightness of the effect
Press-and-hold footswitch activates Infinite Reverb for momentary pad effects
Secondary knob functions adjust reverb mix, delay time, and modulation depth and rate
Three Buffered Bypass Modes: Digital, Analog, and Hybrid
Warranty: 1 Year; This manufacturer does not offer a warranty on Non-Factory Resealed, Dent and Scratch, Minor Blemished, Factory B-Stock items.
Electro Harmonix Pico Shimmer Reverb Pedal
Item #:
EHX PICOSHIMMER
Manufacturer Part Number:
PICO SHIMMER
UPC:
683274012780
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Jason 🇺🇸
Verified Buyer
Big Sound
This pedal produces some great dynamic sounds. I use it primarily with my Roland J6 synth and love the combo. It’s got 3 different modes that sound vastly different, which is great. There’s also a lot of additional functions that let you dial in the sound to your precise taste.
Whatever you’re loo...
Published date
07/29/26
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Javier G. 🇺🇸
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Great Service and Shipping
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Published date
06/29/26
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Frequently Asked Questions
Shimmer reverb layers pitch-shifted octaves on top of a reverb tail to create that expansive, celestial sound you've heard on countless recordings. The Pico Shimmer takes it further by combining shimmer with modulation, delay, synthesis, and three unique Scene modes, making it far more versatile than a standard shimmer reverb pedal.
Yes, it was essentially designed with ambient players in mind. The Infinite Reverb feature, long decay times, and synth-style textures in Off-World and Etherdust make it a strong choice for drone, post-rock, and ambient soundscaping.
The VOICE knob continuously morphs the reverb character between three flavors: clean plate reverb, classic shimmer, and ethereal string synthesis. You can blend between them smoothly rather than jumping between fixed settings, giving you precise control over the texture of the effect.
Yes, its compact Pico format is specifically built for space-conscious boards. Despite its small size, it doesn't sacrifice functionality, making it one of the more feature-rich options available in that footprint.
Intergalactic is the classic shimmer mode featuring polyphonic octaves, plate reverb, and string synthesis. Off-World is a smoother, more atmospheric shimmer with vintage synth textures. Etherdust is a glitch-style shimmer where the delay time randomizes, producing granular sparkles and stuttered echoes.
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