Two studio compressors on a repair bench.

Origin Effects is an English maker of guitar and bass pedals, founded by Simon Keats. The company says it “was founded in 2012, but the story starts a few years earlier with a single home-made pedal.” In its telling, Keats was repairing a pair of Urei 1176 studio compressors — FET units the company calls studio classics — and, after playing through them, set out to design a pedal that could produce the same sound. That pedal, it says, would eventually become the Cali76, and the response it drew from other musicians convinced him there was a market for “studio-grade” guitar pedals.

The earliest archived copy of the company’s website, from May 2012, called Origin Effects “the brainchild of British audio-designer Simon Keats” and carried a copyright line in the name of Keats Audio Limited. Guitar World, marking the company’s tenth anniversary in October 2022, described Keats as a former Vox and Focusrite designer; we found that detail in no other source we checked, so we give it as the magazine’s description. The current company, Origin Effects Limited, was incorporated in March 2014, according to Companies House, the UK company register, which lists Keats as a director since incorporation.

On ownership the register is unusually clear. It records Keats as the company’s only person with significant control, holding more than 75 per cent of the shares and voting rights. We found no record of an acquisition or an outside investor. The register gives a registered office in Thame, Oxfordshire, but the company says its workshop is elsewhere: “From our factory in Buckingham, England we hand-build and listen test every single pedal we make.” Guitar World described it in January 2026 as a “Buckinghamshire, UK-based operation.” In a statement published by the same magazine in 2021, Keats said the company employed 11 people “in a small market town.”

A slide-guitar tone, chained twice.

The first products were both built around the 1176. The Cali76 was offered in 2012 as a “1960’s style FET compressor, inspired by the legendary Urei 1176,” with a through-hole circuit board, a Class-A discrete signal path and a VU-style meter, at £229 in the UK. The SlideRIG had a narrower aim. Its 2012 product page said the goal was to reproduce the slide-guitar tone of Little Feat’s album Dixie Chicken, which, it explained, had been achieved in the studio by chaining two 1176 channels together. The company published praise from Little Feat’s guitarist Paul Barrere, dated December 2011, and said he had received the unit with serial number 001. Sources differ on which pedal came first: Guitar World wrote in 2022 that the SlideRIG was the brand’s first pedal and that the Cali76 “followed soon after,” while the company’s own account begins with the Cali76.

The original large-format pedals were costly to make, the company now says, because their parts were expensive and hard to source. A Cali76-TX version, introduced in 2012 according to Guitar World, added a custom iron-core output transformer, with a Lundahl transformer as an option. In December 2019 Guitar World reported that the company had built its 10,000th Cali76 Compact Deluxe. In 2025 the Cali76 Stacked Compressor put two FET stages in one box and, MusicRadar reported, boosts a 9-volt supply internally to 24 volts for more headroom.

From 2018 the range widened into drive. Guitar World dates the RevivalDRIVE, an overdrive that Guitar World’s reviewer said “felt and sounded like playing through a sorted vintage amp,” to that year. Its circuitry became the basis of a line the company calls “Amp Recreations”: the MAGMA57 (2020), modelled on late-1950s Magnatone amplifiers; the DELUXE61, after a 1961 Fender Deluxe; and from 2022 the BASSRIG pedals, based on Ampeg and Fender bass amplifiers. The Halcyon overdrives rework the Ibanez Tube Screamer and the Klon Centaur, and the DCX pedals, launched in 2023, draw on Universal Audio’s 610 valve preamp.

Design and documentation.

The seven makers in this group are smaller pedal companies, some building analogue circuits by hand, some writing their own digital processing. Five are American, one Canadian and one English.

Analogman is Mike Piera’s workshop in Bethel, Connecticut, where the Connecticut Mirror reported in 2024 that he has worked full-time since about 2000. Source Audio says it was founded in Woburn, Massachusetts, in 2006; in July 2026 the companies announced that it had become part of Ernie Ball, the string maker.

Meris, which Terry Burton, formerly of Strymon, told Guitar.com he started in 2013, says its pedals are designed and built in California. Red Panda says it began in 2009 and assembles every pedal in its metro Detroit workshop. Old Blood Noise Endeavors lists a shop in Oklahoma City, and Guitar World reported in 2025 that its pedals are hand-made at its Oklahoma headquarters.

Fairfield Circuitry says it has worked since 2008 and does all its manufacturing in Hull, Québec. Origin Effects, founded by Simon Keats, says it hand-builds its pedals in Buckingham, England; the UK company register lists Keats as its controlling shareholder.

Apart from Source Audio, we found no record of an outside owner for any of these companies, and much of what is said about where their pedals are made comes from the companies themselves.

This guide sets out what can be checked about each brand — who founded it, who owns it, and what it says about where its products are made — and marks clearly what rests only on the company’s own word.

Studio hardware, made small, with a name it had to defend.

The name “Revival” brought the company its most public dispute. In June 2021 Guitar World reported that Revival Electric, a Bay Area pedal and amplifier maker, had accused Origin of trying to “strip” it of its name. Citing US Patent and Trademark Office documents, the magazine said Origin’s 2018 application to register “REVIVALDRIVE” had been refused because of likely confusion with Revival Electric’s mark, registered in 2010, and that Origin had then petitioned to cancel that mark on the grounds that it had been abandoned. Keats replied that Origin was “not a huge corporation with a team of lawyers,” that it had offered to rebrand, and that “there is no lawsuit against Revival Electric.” When the RevivalTREM was renamed DELUXE61 later that year, its product manager told Guitar.com, as Guitar World reported, that the change was “not related to the dispute.” We found no report of how the case ended.

The company’s look borrows from the equipment that inspired it: meters, large knobs and bare metal. For its tenth anniversary in 2022 it offered its compressors in a laser-engraved aluminium finish that it said was inspired by its “stealthy in-house prototypes.” The Cali76 Stacked Compressor comes in silver or black brushed steel. The company lists the “ORIGIN EFFECTS Totem Device” — its emblem — among its registered trademarks, alongside CALI76, SLIDERIG and REVIVALDRIVE. It publishes no colour codes or typefaces.

On where the pedals are made, the company is consistent: it says it hand-builds and listen-tests every unit at its Buckingham factory, and MusicRadar, reporting launches in 2022 and 2023, described its pedals as “designed and made in England” and “designed and built in England.” We found no sign of outsourced production in the sources we checked, but that rests largely on the company’s word.

For a design guide, Origin Effects shows how a small company can build an identity on a single reference — the 1176 studio compressor — and extend it to amplifiers without losing the thread. Compare MXR, whose M87 compressor an early review quoted by Origin set beside the Cali76, and Boss, whose CS-2 compressor the producer Paul Stacey, quoted on Origin’s early website, said he had once relied on. For this guide we use a meter red, a VU amber and a brushed steel with a condensed sans, an unofficial interpretation; no product or logo is reproduced.

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