The Electro-Harmonix story is long and complex with more untold stories beneath the surface than most could imagine. Part of that untold story is all of the pedal ideas that never got made for one reason or another. EHX aficionados Josh Scott and Daniel Danger had been digging through all of the EHX’s history when they came upon an old schematic at the home of original Big Muff Pi designer, Bob Myer. Initially passed over by EHX Founder, Mike Matthews, for what would become the Op-Amp Big Muff Pi back in the late 70’s, this schematic serves as a window into that untold story of forgotten pedals, so Josh went to work to bring this circuit to life in collaboration with Electro-Harmonix. The result, a Dual Op-Amp fuzz that’s very much Big Muff with its own character dubbed the Big Muff Pi 2. 

The Big Muff Pi 2 is a slight detour from the usual Big Muff tone. Slightly lower gain, slightly less refined edges with a unique feel, but with the signature sustain and full-bodied BMP tone known and loved by countless players. Housed in EHX’s Nano-sized chassis in a vibrant refinish with graphics by Daniel Danger, the pedal features the familiar SUSTAIN, TONE, and VOL controls. SUSTAIN controls the amount of distortion from heavy crunch to full speaker pounding saturation. The TONE knob is a classic BMP-style tone control, boosting treble and cutting bass as it’s turned up, from wooly to searing. VOL adjusts the overall output of the effects. 

Electro-Harmonix Founder and President, Mike Matthews and serial inventor Bob Myer go way back. Together, they designed the very first Big Muff and had a working relationship throughout EHX’s storied history. Always innovating, Bob was known to present Mike with updated designs to keep up with available technology of the times. As the process goes, designs get selected and others get put aside and forgotten about. The Big Muff Pi 2 Dual Op-Amp design is one that didn’t make the cut back in the late 70’s and was promptly stashed away in Bob’s files. While interviewing Bob in his old workshop, EHX disciples Josh Scott (of JHS Pedals) and Daniel Danger uncovered this novel circuit design as a hand drawn schematic amongst Bob’s old notes. Josh went to work decoding the original schematic and resurrected the circuit as the Big Muff Pi 2.

The Big Muff Pi 2 is similar to the classic Big Muff Pi but has a unique fuzz tone to further fill out your Muff flavor palate. With singing sustain and gobs of gain, the BMP2 remains true to the Big Muff Pi legacy with its own edge and response. A crispy top end, booming lows, and slightly less refined clipping gives the Big Muff Pi 2 a particularly cool feel that’s both unique and distinctly Big Muff. Slightly more dynamic, slightly more fuzzy, the Big Muff 2 is must-try for any BMP lover!

Featuring the familiar control set of Volume, Tone, and Sustain, the Big Muff Pi 2 comes in a nano sized die-cast chassis with art designed by EHX aficionado, Daniel Danger. SUSTAIN controls the amount of sustain and distortion from medium grit to full fuzz fury. TONE adjusts the tone from brash rasp to deep thunder, increasing treble and decreasing bass as it’s turned up. VOL sets the overall output of the pedal.

The Big Muff Pi 2 features a first for a Big Muff, silent true bypass footswitching with Latching/Momentary Action. Click the footswitch for normal latching functionality or press and hold the footswitch of a momentary burst of fuzz mayhem!

• Unique Big Muff Pi circuit design employing 2 Dual Op-Amps
• Artwork by Daniel Danger
• VOL, TONE, and SUSTAIN controls
• True Bypass
• Latching/Momentary footswitch action
• 9V Battery included, adapter optional

This lost piece of the pi ships a 9 Volt battery (power supply optional), is available now and has a U.S. Street Price of $122.00.

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