ELECTRO HARMONIX BIG MUFF Pi (1978) Chorus it required comparatively-little work to

it required comparatively-little work to bring it up to full operational order

the Blender

In stereo both sound richer

before once more revisiting the Soundgas tech dept for final calibration and pre-shipping preparation

very minor wear and signs of use

ELECTRO HARMONIX BIG MUFF Pi (1978) Chorus it required comparatively-little work toOffered 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