Electro-Harmonix book announced alongside JHS Big Muff 2
December 11, 2025 · 2 sources
JHS Pedals and Electro-Harmonix announced the Big Muff 2, a limited run of 5,700 pedals at $249 on the JHS Webstore, and the book "Made On Earth For Rising Stars: The Electro-Harmonix Story" at $55, made available at the same time1. The book does not ship until Spring, which the report presumes means the first quarter of next year1. Guitar Pedal X published the news on December 11, 20251.
The pedal is built from a hand-drawn schematic labeled "BIG MUFF USING (2 DUAL OP AMPS)" that Josh Scott and Daniel Danger found in the workshop of Bob Myer, who worked on a next-generation Big Muff for EHX's Mike Matthews in the 1970s using newly released op-amps rather than transistors12. Matthews chose Howard Davis's design for production, which became the 1978 EHX OpAmp Big Muff, while Myer's version was left unused1. The Big Muff 2 uses two dual op-amps in a larger, vintage-correct enclosure with the usual three-knob control layout1.
JHS describes the circuit as having a different clipping arrangement and an extra gain stage compared with the late 1970s Op-Amp Big Muff, and says Matthews heard a prototype and called it "something special"2. JHS's description of the sound:
"Where the original Big Muff delivers that iconic 'sweet violin-like sustain,' Bob's two dual Op-Amp approach pushes into more aggressive, cutting territory. It's the Big Muff DNA with a sharper edge, more volume, and the most pronounced low-end and midrange of any EHX Big Muff ever."
Guitar Pedal X suggested a smaller version may eventually appear on the EHX Webstore, with the current run sold through JHS1. Pedal of the Day described the book as a visual history and a collaboration between EHX, JHS Pedals, Third Man Books and Daniel Danger2.