Electro-Harmonix Big Muff Pi 2 Fuzz Pedal Overview

The Electro-Harmonix Big Muff Pi 2 is a resurrected chapter of fuzz history, bringing a long-lost late-’70s dual op-amp Big Muff design into the modern era. Unearthed from the original hand-drawn schematics of EHX co-creator Bob Myer, this circuit offers a familiar Big Muff foundation with a distinct twist in feel and response.

Compared to a classic Big Muff Pi, the Pi 2 delivers a slightly more dynamic and raw fuzz character, with a crisp top end, powerful low-frequency punch, and less refined clipping that gives it a lively, aggressive edge. It retains the iconic singing sustain and gain saturation Muff players expect, while adding a unique texture that stands apart from other variants in the lineage.

Highlights

• Rediscovered dual op-amp Big Muff circuit based on Bob Myer’s original design
• Classic Big Muff sustain with a more dynamic, raw fuzz response
• Silent true bypass footswitch with latching and momentary operation
• Nano-sized enclosure with custom artwork by Daniel Danger
• Familiar and intuitive Volume, Tone, and Sustain controls

Specifications

Body

• Compact die-cast metal enclosure
• Nano-sized format

Hardware

• Footswitch: Silent true bypass with latching or momentary action
• Jacks: Mono input and output

Electronics

• Circuit: Analog dual op-amp fuzz
• Controls:

• • Volume: Overall output level

  • Tone: Balances treble and bass response

  • Sustain: Controls gain and sustain from grit to full fuzz

Miscellaneous

• Power: 9V battery (included) or optional 9.6VDC power adapter
• Current Draw: 15mA
• Dimensions: 5.75" x 3.45" x 2.75"

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