Electro Harmonix Op-Amp Big Muff Pi

Electro Harmonix Op-Amp Big Muff Pi

- 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)