Op-Amp Big Muff Pi Distortion/Sustainer

With original late-70s Op-Amp Big Muffs selling for exorbitant prices, Mike Matthews decided to take the power to the people and reissue the classic pedal at a price that players could afford! The circuitry of the new Op-Amp Big Muff —sometimes also referred to as the IC or V4 Big Muff— has been faithfully re-created while several practical enhancements have been added including a compact, die-cast chassis and true bypass switching.

Quick Specs
- 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
- Dimensions in inches: 2.75 (w) x 4.5 (l) x 2.1 (h)
- Dimensions in mm: 70 (w) x 115 (l) x 54 (h)

Demo Video


User Manual: https://www.ehx.com/op-amp-big-muff-pi-manual.pdf

Shipping Weight: 1.4 lbs.
Shipping Dimensions (L x W x H): 6.25" x 5.65" x 3.2"

Unboxed Weight: TBD
Unboxed Dimensions (L x W x H): 4.5" x 2.75" x 2.1"

UPC: 683274012087