Electro-Harmonix BIG MUFF PI Classic Distortion / Sustainer Pedal 22-inch The GA-50 also features a

The GA-50 also features a drastically improved battery life

The locking screw provides additional stability and vibration-free speaker mount

Four foot-switchable Freeze modes: Moment

this amp offers you plenty of tonal options

Electro-Harmonix BIG MUFF PI Classic Distortion / Sustainer Pedal 22-inch The GA-50 also features aThe NYC original. Hendrix and Santana were among the first to get a piece of the Pi, and for over 40 years the 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!