Electro-Harmonix Op-Amp Big Muff Pi Fuzz Pedal – New

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The Electro-Harmonix Op-Amp Big Muff Pi recreates the distinctive late-1970s V4 Big Muff circuit, delivering huge sustain, aggressive crunch and crushing wall-of-sound distortion. Its op-amp design gives it a harder, more direct response than many transistor-based Big Muff versions, making it ideal for grunge, alternative rock, shoegaze and heavy rhythm guitar. At A Glance Feature | Details | Brand | Electro-Harmonix | Model | Op-Amp Big Muff Pi | Type | Fuzz / Distortion / Sustainer | Condition | New | Circuit | Analogue Op-Amp | Controls | Volume, Tone, Sustain | Tone Bypass | Yes | Bypass | True Bypass | Current Draw | 5mA | Power | 9V Battery / Optional DC Adapter | Best For | Grunge, alternative, shoegaze and heavy rock | Classic Op-Amp Big Muff Tone Unlike many traditional Big Muff circuits, the Op-Amp version uses operational amplifiers and three gain stages for a more aggressive, crunchy response. Volume controls output level, Tone adjusts the balance from deep bass to cutting treble, and Sustain controls distortion and note length. The Tone Bypass switch removes the tone circuit for a broader, more direct full-range fuzz sound. What's Included? Electro-Harmonix Op-Amp Big Muff Pi 9V battery External power adapter not included. Technical Specifications Specification | Details | Circuit | Analogue | Audio | Mono | Controls | Volume, Tone, Sustain | Additional Switch | Tone Bypass | Bypass | True Bypass | Current Draw | 5mA | Power | 9V Battery or Compatible 9V DC Adapter | Dimensions | 4.5 x 2.75 x 2.1" | FAQs How is the Op-Amp Big Muff different from a standard Big Muff? It uses op-amps rather than the transistor-based gain structure found in many other Big Muff versions, giving it a harder, crunchier and more aggressive character. What does the Tone Bypass switch do? It removes the Tone control from the circuit for a broader, more direct full-frequency fuzz sound. Is it good for grunge and alternative rock? Yes. Its ag