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HISTORICAL FACTS: Electroharmonix - The Untold Story

10 misunderstood guitar pedals that became modern classics

These trailblazing stompboxes baffled players at first, but guitarists eventually caught on…

Guitar World

“The final boss of the lost Dual Op-Amp circuit”: Electro-Harmonix gives the Big Muff Pi 2 the “Deluxe” treatment – adding Wicker switch, noise-gate, footswitchable mids and more

This alternate take on the Muff fuzz sound now comes supercharged with enough features to make you consider an upgrade

MusicRadar

“With a gritty textured edge to its fuzz/distortion, this is a pedal for big riffs and endless sustain”: Electro-Harmonix Big Muff Pi 2 Dual Op-Amp Fuzz review

Long-lost circuitry featuring two op-amps is resurrected for thelatest iteration of the classic Electro-Harmonix pedal

MusicRadar

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One small pedal for your ‘board, one giant step for reverberation: EHX expands the Pico series with a "cosmic reverb" for adventures in soundscape generation and otherworldly guitar sounds

EHX expands its compact DSP series with a pedal packing three reverb types, each with its own otherworldly potential

MusicRadar

“In ’84 that was it. We were done. I was completely bankrupt. It was devastating”: How Mike Matthews saved pedal pioneers Electro-Harmonix from the brink – and managed to secure its longterm future

When Electro-Harmonix went bankrupt in the mid-’80s, Matthews was forced to pivot and find an alternative market for his business, away from the States

Guitar World

“Tight harmonies that can sound like two (or three!) guitars playing together”: Electro-Harmonix Pico Intelligent Harmony Machine review

EHX shrinks another pedal as the Intelligent Harmony Machine joins the ranks of the pedalboard-friendly Pico range

Guitar World

“Each effect has been recreated using detailed component-level modeling, faithfully capturing the behaviour of the original analogue circuitry”: Electro-Harmonix launches six of its most-famous pedals as plugins

Teaming up with MixWave, EHX presents three Big Muffs, the Deluxe Memory Man, Electric Mistress and the Small Clone for your DAW

MusicRadar

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“The best Big Muff there’s ever been for bass”: Electro-Harmonix Bass Big Muff Pi 2 review

A long-lost EHX Big Muff variant, made real – and now made for bassists to enjoy too.

Guitar World

“More aggressive, more physical, more raw and in tune with the animal kingdom”: Electro-Harmonix Big Muff Pi 2 Dual Op-Amp Fuzz review

A schematic, lost in the shuffle, resurfaces with the help of JHS Pedals supremo Josh Scott, and presents us with a fresh slice of Pi

Guitar World

“Every once in a while a pedal comes along that takes you by surprise. It’s a pedal I didn’t even know I needed”: Electro-Harmonix Effects Interface review

From the creator of the Big Muff comes a handy unit for getting your pedalboard and your DAW effects talking to each other

Guitar World

“We were packing up, then all of a sudden he goes, ‘Have you been down to the basement?’” The iconic EHX Holy Grail has been championed by Jim Root and John Frusciante – and now the lost prototype has been found

The classic reverb pedal can be found on pedalboards the world over, but JHS Pedals' Josh Scott has tracked down the first one

Guitar World

“First of its kind”: Electro-Harmonix’s Effects Interface turns your pedals into plugins – and puts your prized plugins on your pedalboard

The utility tool could be a game-changer for your rig, forgoing converters and complex cable methods for a frills-free approach

Guitar World

EHX’s new Effects Interface is a stompbox-shaped device that lets you integrate your pedalboard with your DAW

NAMM 2026: Electro-Harmonix’s pedal-focused audio interface “handles your signal and delivers it with care between your hardware and software”

MusicRadar

“It may be based on a Tone Bender, but it can also be considered a generic fuzz – and we mean that in a good way”: Electro-Harmonix Bender Royale review

Electro-Harmonix revives the classic three-transistor Tone Bender and evolves it for more sonic variety

Guitar World

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Guitar World

“We are building a system to stimulate and retrieve energy to Earth”: Electro-Harmonix wants to harness the magnetosphere’s energy to solve the AI power crisis

Brand founder Mike Matthews has teamed up with a former Bell Labs scientist to shape his plans

MusicRadar

“The ABRAMS100 packs a whallop and it’s perfect for pedals!”: Electro-Harmonix presents 100-watts of serious solid-state power in a compact guitar amp head weighing just 2.5lbs

An amp you can throw into a backpack, the ABRAMS100 is a single-channel head with digital spring reverb, 3-band EQ, Bright switch and effects loop and it has ample clean headroom

Guitar World

“A really musical effect, perfectly implemented in a tiny footprint”: Electro-Harmonix Pico Swello review

Electro-Harmonix takes one of the best-loved features of its POG2 and puts it into a standalone pedal

MusicRadar

“Dipping our toe into the cosmic pool of glitchy synth pedals with this one”: EHX expands its Pico series with the Atomic Cluster Spectral Decomposer – a mini-pedal that sounds so wrong its right

The Atomic Cluster might be teeny tiny but it's packing transformative energy for your guitar tone, with celestial synth sounds that soundscapists and adventurous players will love

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Guitar World

“It’s the guitar pedal equivalent of the Ark of the Covenant”: 50 years ago, Electro-Harmonix set the template for the future of guitar stores – then it disappeared without a trace. This is the story of the Hall of Science

Mike Matthews, Josh Scott and key EHX staff reflect on the firm’s boldest idea, which came at the height of its late-’70s powers – and went way beyond pedals

MusicRadar

“Takes the splendidly saturated sound of the original and opens up a world of fuzz tones”: Electro-Harmonix adds switchable clipping, bias and Fat switch to a bona-fide classic of fuzz with the Bender Royale

The Bender Royale allows players to choose LED or germanium clipping, and has expanded EQ controls to help you dial in a wicked fuzz tone

Guitar World

“From the simplest reverb to complex shifting ambiences, there’s something here for everyone”: Electro-Harmonix Oceans Abyss review

Electro-Harmonix releases its most ambitious reverb pedal to date – and it goes way beyond ’verb to offer myriad sound-sculpting opportunities

MusicRadar

“At times it can really feel like more of a multi-effects pedal rather than just a straight reverb pedal”: Electro-Harmonix Oceans Abyss review

EHX brings us a reverb pedal with sliders, a screen, and all the potential to be a Strymon-killer

MusicRadar

“The Oceans Abyss expands on Electro-Harmonix’s highly acclaimed reverb technology to deliver a truly immersive effects workstation”: EHX’s unveils Oceans Abyss – a stereo reverb powerhouse promising a “completely unique soundscape building experience”

It's not just any reverb pedal, it's an "Advanced Reverb Laboratory", and it allows you to run two stereo reverbs at once, pan them across the stereo field, add effects and get creative

Guitar World

“Dive deeper into the depths of ambience”: Electro-Harmonix launches the Oceans Abyss – taking on the likes of Strymon and Meris with an immersive ambient reverb

With two independently programmable reverb engines, 10 voices, and a bevy of effects, the Oceans Abyss is throwing its hat in the ring for 2025’s best one-stop ambience machine

Guitar World

“Jimi was staying at a hotel in Times Square. He had his hair set in pink curlers and we would just talk band drama”: Electro-Harmonix founder Mike Matthews on befriending Hendrix, booking Chuck Berry and the birth of pedal culture

The EHX pioneer is one of the guitar world's most colorful characters. He tells us what happened when Hendrix bought one of the first Big Muffs, how the Rolling Stones got him started in the pedal biz, and why the "overdesigned" POG3 is an unlikely triumph

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