Electro-Harmonix OP Amp Big Muff

Reissue of the classic Op-Amp Big Muff —sometimes also referred to as the IC or V4. The pedal relies on op-amps rather than transistors and three gain stages rather than four, to create its signature sound. It is a huge, crushing Big Muff sound with more crunch. Great for grungy, wall-of-sound distortion, heavy rhythm playing and heavy leads.”

Specifications:

 

A faithful reissue of the original classic circa 1978
Iconic sound and vibe that’s coveted by guitarists
Controls for Tone, Sustain and Volume, plus a Tone Bypass switch.
True bypass switching for maximum signal integrity in bypass mode
Rugged, compact, die-cast package… pedalboard friendly
Ships with a 9Volt battery, also accepts an optional EHX9.6DC-200 AC Adapter