A timeless piece, the Big Muff Pi has been defining the sound of rock guitar for almost 40 years!
The NYC original. Hendrix and Santana were among the first to get a piece of the Pi, and for over 40 years the EHX Big Muff Pi has been defining the sound of rock guitar.

Revered by contemporary guitarists and rock legends for its rich, creamy, violin-like sustain, from Pink Floyd to The White Stripes, everyone still wants a piece of the Pi!

True bypass
Singing sustain with attitude
Crushing distortion
Adjustable tone
9V battery included