ELECTRO HARMONIX BIG MUFF Pi (1978) original also has just a few

also has just a few scratches on the face

Overhauled by our tech and sounding superb

the mechanics rebuilt

this has an unusual circuit design using 19 inductors and has a unique sound

ELECTRO HARMONIX BIG MUFF Pi (1978) original also has just a fewOffered for sale is this amazing vintage EH Big Muff Pi pedal in perfect working order. This is version 4 of the Op Amp Big Muffs with the EH1322 board Smashing Pumpkins' Billy Corgan famously used a v4 Op Amp Big Muff the pot codes are 1978 making this little beauty over 30 years old. It has very few scuffs and scratches for a 36 year old pedal (see detailed photos below). Mojo aplenty, made in USA, built like a tank and sounding fantastic. Sonically