The SOS 30 ’Big Pi’ pack contains 40 captures of the EHX Big Muff Pi in each of the ToneX, NAM Standard and NAM Nano formats. (Full details above.)
 
EHX point out that, ‘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!’
 
Trod on by,  Kurt Cobain, John Frusciante, Flea, Matt Bellamy. Thom Yorke, Dimebag Darrell, Jerry Cantrell. The list really does go on and on and on…