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Elk Sustainar

Electro-Harmonix Big Muff Pi
Key facts
TypeVintage fuzz sustainer pedal, Big Muff variant14
MakerELK Gakki Co., Japan3
ReleasedEarly 1970s; the Super Fuzz Sustainar appeared around 197313
StatusDiscontinued and rare; vintage units sell at high prices1
Circuit basisTriangle Big Muff Pi, with a schematic close to a 1972-era PNP triangle circuit19
Best-known userWata of Boris5

The Elk Sustainar is a vintage Japanese fuzz distortion pedal from the early 1970s, built as a copy of the Big Muff Pi, specifically the first "Triangle" version with its Volume, Sustain and Tone knobs laid out in a triangle12. It was produced by ELK Gakki Co., one of the earliest Japanese makers to interpret the Big Muff circuit, and it survives today in small numbers at high prices34. Its modern fame rests almost entirely on one player: Wata, guitarist of the Japanese band Boris, whose well-worn Sustainar became the template for the EarthQuaker Devices Hizumitas Fuzz Sustainar in 2021564.

For a player arriving at this circuit, the short version is this: the Sustainar is a Japanese Triangle Big Muff variant with its own component values, its own tone stack, and enough production variation that no two originals sound quite alike. It is not a pedal you can easily buy, but its circuit has been documented, cloned, and recreated by several makers782.

Where the Sustainar came from: a Japanese Big Muff

Maxon The Dirt Box
Maxon The Dirt Box

The Elk Sustainar is an early-1970s, Japan-made copy of the triangle Big Muff, the Version 1 Big Muff Pi that Electro-Harmonix sold from around 196911011. Kit Rae's Big Muff history lists the Elk Super Fuzz Sustainer among the early clones of the V1 circuit, alongside Japanese and American copies like the Jordan Creator (circa 1971), the Mirano EF-1, the Sekova Big Muff, and later the Ibanez OD-850 and Maxon OD-80110. Japan in the 1970s had a busy pedal industry, and the Big Muff circuit was widely copied there; the Maxon D&S Distortion & Sustainer OD-801, circa 1974, was one of the most popular Japanese versions of the circuit1213.

Elk's version stood out for how closely it copied the original's presentation. The Elk Muff Sustainer was housed in an enclosure identical to the V1 Big Muff, with very similar graphics, and its circuit is a nearly exact clone of a 1972-era Big Muff made by the Hoshino Gakki company, built with PNP transistors where the New York original used the silicon transistor four-stage layout914. Wren and Cuff, which has recreated the pedal, describes the originals as very cheap Big Muff "Triangle" copies made by Elk Inc. in the 1970s15.

"The Elk Sustainar is an early-1970s Japan-made copy of the triangle Big Muff"
Premier Guitar1

How it works: the Triangle Big Muff circuit

To understand the Sustainar, it helps to understand what it copies. The Big Muff Pi used an independent four-stage silicon transistor circuit: an input gain stage, two clipping amplifier stages that generate the distortion and sustain, and an output recovery stage, with a tone control network between the clipping stages and the output14. The Version 1 "Triangle" Big Muff, nicknamed for its triangular knob layout, is the circuit the Elk copies10.

The Elk Muff Sustainer's circuit is identical to a PNP triangle circuit from 1972, according to the Guitar FX Layouts analysis that produced a stripboard layout for the pedal9. That means the signal path follows the Big Muff shape, but the Elk's own component choices give it a distinct voice. Two differences stand out in the technical analysis:

  • The Elk uses 47n caps in the clipping stages, against the 1uF caps in the clipping stages of the common triangle Muff layout, a change that shapes how the distortion stages respond16.
  • The tone stack is darker sounding than the originals, and the tone control sweep behaves more like a synthesizer filter than a standard Big Muff tone knob9.

Component quality is another part of the story. Wren and Cuff notes that some components in the original Elk Super Fuzz Sustainar would drift as much as 50 percent of their stated values15. That drift is one reason original units vary so much in sound, and it is a fact any buyer of a vintage unit should weigh.

For context on the circuit the Elk copies: when Electro-Harmonix reissued the Triangle Big Muff Pi in 2018, Kit Rae compared the reissue against vintage V1 units and found it sounded almost identical to a common 1970-71 V1 circuit variant in his collection, but slightly brighter, with basically the same tone knob range12. The reissue blended component values from a rare perfboard V1 and a circa-1970 PCB V112. That kind of variation inside the official version is a useful reminder that even the original Triangle Big Muffs were never one fixed circuit, which is part of why Elk copies differ unit to unit.

Versions: from Big Muff logo to Super Fuzz Sustainar

The Sustainar's naming history runs in an unusual direction. According to EarthQuaker Devices' own history of the pedal, early versions carried a "Big Muff" logo, and the "Big Muff" name later disappeared, replaced with "Super Fuzz Sustainar"17. Stomp Under Foot, which sells a recreation, gives the timeline the other way: the pedal was released around 1973 as the Super Fuzz Sustainar, modeled after the early Triangle Muffs, and later the name was changed to Big Muff Sustainar17. The two makers disagree on the order, so treat the naming sequence as unsettled; what is certain is that both names appear on Elk's Big Muff-copy pedals from the 1970s.

Version namingWhat it is
"Big Muff" logo versionsEarly versions carried a Big Muff logo, per EarthQuaker Devices3
Super Fuzz SustainarReleased around 1973, modeled after the early Triangle Muffs, per Stomp Under Foot3
Big Muff SustainarThe later name, per Stomp Under Foot; the name Wata's own pedal carries317

The versions do not just differ in name. GuitarPlayer's Art Thompson, reviewing the Hizumitas, noted that he had tested different versions of the Elk BM and found, in his words, "no surprise," that they all sounded different18. Between Elk's component drift and circuit changes across the run, the Sustainar is really a family of slightly different pedals rather than one fixed circuit.

The Sustainar's afterlife in modern pedals is broad. Stomp Under Foot sells an ELK Super Fuzz Vintage Mini recreation3. Wren and Cuff's White Elk Small Foot is a recreation of the Elk Super Fuzz Sustainar15. The Guitar FX Layouts blog published a stripboard layout for the Elk Muff Sustainer in September 2018, including a version with a requested mids switch9. And Guitar Pedal X's reviewer has covered a Free Fall Diver pedal, the ReLK Sustainer Fuzz, based on the Japanese Elk Muff19.

Wata of Boris and the Sustainar sound

The Sustainar would likely have stayed a footnote in Big Muff history if not for Wata of Boris. EarthQuaker Devices describes the vintage ELK Big Muff Sustainar as the thing that makes her comfortable distortion sound, and her unit dates from around 197317. MusicRadar calls it a rare and ornery Japanese take on the Triangle Big Muff that has been crucial to her electric guitar tone4.

EarthQuaker's blog records the character of Wata's unit in her own terms, including a fuzz to distortion ratio she described as "Fuzz 2.5: Distortion 7.5," a low fuzz ratio for a fuzz pedal17. The company describes her as a connoisseur of Big Muff-based fuzz circuits17.

"Fuzz 2.5: Distortion 7.5" Such a low fuzz ratio!!!
Yuichiro Hosokawa, EarthQuaker Devices17

That character carried into the Hizumitas. When EarthQuaker Devices and Boris launched the Hizumitas Fuzz Sustainar in November 2021, the company said it was based on Wata's main Elk Sustainar pedal, and Wata sent her beloved pedal halfway across the world so the designers could see what made it tick26. The development story matters for circuit hunters: Premier Guitar reports that EarthQuaker checked out vintage Sustainars and Big Muffs and concluded there was too much variation to nail down a faithful copy, so Wata shipped her own Elk pedal to EQD headquarters1. Pedal of the Day adds that the EQD crew got their hands on Wata's actual pedal to capture the sound she has had for years8.

The Hizumitas is not a strict copy, though. The Guitar FX Layouts analysis of the Hizumitas circuit found that, despite the claims, it is not a 1:1 clone of the original, as there are some changes20. Gearnews reported at launch that, according to the company's website, the Hizumitas is a pretty faithful copy of Wata's go-to distortion21. GuitarPlayer's Art Thompson, who had tested the original Elk versions himself, found the Hizumitas indeed possessed a special circuit that produced heavy saturation with a gritty edge and massive bottom, yet a clear and dynamic presentation with plenty of mids and top-end bite18. For DIY builders, GuitarPCB sells an EQD Hizumitas PCB described as a fuzz/sustain effects pedal based on the Elk BM Sustainar pedal favored by Wata from Boris22.

EarthQuaker's work with Wata did not stop there: a later EarthQuaker Devices x Boris collaboration fuzz was also based on Wata's main Elk Sustainar pedal6.

How the Sustainar compares to other Japanese Big Muffs

The Elk is one branch of a wider Japanese Big Muff family. The Maxon D&S OD-801, also sold as the Ibanez Overdrive OD-850, was another early and popular Japanese version of the Big Muff circuit, circa 197413. The Sekova Big Muff Model 2015 is likewise a clone of a triangle Big Muff, as the Guitar FX Layouts analysis of that pedal notes16. Where the Elk stands out among these is its enclosure, identical to the V1 Big Muff with very similar graphics, and its PNP transistor build, which mirrors a 1972-era triangle circuit rather than the later op-amp direction the official Big Muff took in the late 1970s91.

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Questions

Is the Elk Sustainar a Big Muff clone?

Yes. The Elk Sustainar is an early-1970s, Japan-made copy of the Triangle Big Muff, the first version of the Electro-Harmonix Big Muff Pi. It was housed in an enclosure identical to the V1 Big Muff with very similar graphics, and its circuit is a near copy of a 1972-era triangle Big Muff, built with PNP transistors.

What fuzz pedal does Wata from Boris use?

Wata's main fuzz has long been a vintage Elk BM Sustainar from around 1973, a Japanese take on the Triangle Big Muff. EarthQuaker Devices recreated her actual pedal as the Hizumitas Fuzz Sustainar, a collaboration pedal launched in November 2021 after Wata shipped her own Elk to the company's headquarters.

How rare is the Elk Big Muff Sustainar?

Original Elk Sustainars are rare, and vintage units sell at what Premier Guitar's reviewer called nutty prices that reflect their rarity and reputation. Elk's pedals were cheap Big Muff Triangle copies in the 1970s, and component values drifted as much as 50 percent from their stated values, so surviving units vary considerably.

Do all Elk Sustainar versions sound the same?

No. GuitarPlayer's Art Thompson tested different versions of the Elk BM and found they all sounded different. Elk's own component drift, sometimes as much as 50 percent of stated values, plus circuit changes across the production run, means two originals can sound noticeably unlike each other.

Where can I find an Elk Sustainar schematic?

A schematic for the Elk Muff Sustainer appears on Kit Rae's Big Muff history page, and the Guitar FX Layouts blog published a stripboard layout for the pedal in September 2018, including a version with a mids switch. DIY builders can also find the circuit through the GuitarPCB Hizumitas project, which is based on the Elk BM Sustainar.

Is the EarthQuaker Hizumitas based on the Elk Sustainar?

Yes. EarthQuaker Devices says the Hizumitas is based on the Elk BM Sustainar, and the company measured Wata's own vintage pedal to develop it. It is not a 1:1 clone, though: the Guitar FX Layouts analysis found some changes from the original circuit.

Sources (22)
  1. EarthQuaker Devices Hizumitas Review, Premier Guitar, 2021-11-29
  2. Earthquaker Devices and Boris launch the Hizumitas Fuzz Sustainar, Guitar.com, 2021-11-04
  3. ELK SUPER FUZZ VINTAGE MINI / LIMITED EDITION, Stomp Under Foot
  4. Watch Wata from Boris reveal her signal chain secrets in EarthQuaker Devices' video tour of her pedalboard, MusicRadar, 2022-03-25
  5. EarthQuaker Devices Hizumitas Fuzz, Delicious Audio, 2022-05-16
  6. The EarthQuaker Devices x Boris collaboration: an Orange/Matamp-style drive?, guitar.com, 2021-11-04
  7. Hizumitas Fuzz Sustainar — EarthQuaker Devices, EarthQuaker Devices
  8. EarthQuaker Devices Hizumitas Fuzz Sustainer, Pedal of the Day, 2022-12-02
  9. Guitar FX Layouts: Elk Muff Sustainer, Guitar FX Layouts (tagboardeffects.blogspot.com), 2018-09-25
  10. The Big Muff History of All Versions Part 1, Kit Rae (kitrae.net), 1970
  11. Triangle Big Muff Pi, Electro-Harmonix (ehx.com)
  12. The Big Muff History of All Versions Part 1, Kit Rae (www.kitrae.net), 2018-12
  13. The Big Muff History of All Versions Part 1, Kit Rae (www.kitrae.net), 1974
  14. The Big Muff Pi Home Page, Kit Rae (kitrae.net), 2014
  15. White Elk Small Foot, Wren and Cuff, 1970
  16. Guitar FX Layouts: Sekova Big Muff Model 2015, Guitar FX Layouts (tagboardeffects.blogspot.com), 2016-01-31
  17. About Wata's ELK Big Muff Sustainar and Hizumitas, EarthQuaker Devices, 2022-01-24
  18. EarthQuaker Devices Hizumitas Fuzz Sustainer Review, GuitarPlayer, 2022-01-28
  19. Guitar Pedal X, Guitar Pedal X, 2025-05-28
  20. Guitar FX Layouts: Earthquaker Hizumitas, Guitar FX Layouts (tagboardeffects.blogspot.com), 2022-01-06
  21. EarthQuaker Devices and Wata team up for new Hizumitas Fuzz Sustainar, gearnews.com, 2021-11-04
  22. EQD-Hizumitas-Build-Document.pdf, GuitarPCB, 2025-08