The New York builder reckons this is the final chapter in the long-lost dual op-amp Big Muff 2 story.
Electro-Harmonix has gone back to one of its more obscure fuzz circuits with the Deluxe Big Muff Pi 2, a maxed-out take on the dual op-amp Big Muff 2 that the New York builder calls the final chapter in that pedal’s story.
The circuit itself came from a lost schematic, unearthed by Josh Scott and Daniel Danger in the archives of original designer Bob Myer, and it was always a bit of a cult curio, prized for a mids-driven snarl that most Big Muffs scoop right out. This version leans hard into what made it worth chasing up in the first place.
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That mids-forward tone and the long singing sustain are still the foundation, only now they come wrapped in the extra controls from EHX’s Deluxe range. Volume, tone and sustain handle output, EQ and gain in the familiar way, and a Blend knob sets the mix of clean and fuzzed signal so the low end stays defined under all that grind.
Most of the flexibility sits in the parametric mids section, which now has its own footswitch alongside frequency and level knobs that boost or cut mids across a wide range, plus a Hi/Lo Q switch for tighter or broader resonance. With an expression pedal or CV controller connected to the EXP input, the mids frequency comes under your foot, and that’s where the pedal stops being a fuzz and starts howling like a wah.
The three-way Wicker switch opens up two levels of extra top-end filtering at any tone setting, dragging brightness and definition out of the darker, woollier tones that a Big Muff usually keeps buried. An adjustable gate sits behind all of it, keeping the hiss and hum in check when the sustain is pushed hard.
Latching and momentary modes both live on the bypass footswitch, so a click brings the fuzz in and out as usual while a press and hold drops in a quick stab before releasing back to clean, handy for punctuating a part without leaving the pedal on. There’s also a trim pot tucked inside for anyone who wants to reach for even more gain and distortion, and is an all-analog, mono design that draws 45mA and ships with an EHX 9-volt supply.
There have been plenty of Big Muffs over the years, but few of them have given players this much room to shape the fuzz before it hits the amp, and fewer still have grown out of a circuit this overlooked.
The Deluxe Big Muff Pi 2 is available now. For local enquiries, head here.
