Electro-Harmonix SOVTEK DELUXE BIG MUFF Pi Distortion/Sustain PedalIntended for electric guitarists and bassists, the Electro Harmonix Sovtek Deluxe Big Muff Pi is a fuzz distortion pedal that combines several classic Big Muff stompboxes into one versatile unit. Its Volume, Tone, and Sustain controls hail from the Green Russian, while the Wicker switch is borrowed from the Big Muff Tone Wicker. Finally, the sound sculpting capabilities of the midrange control section are derived from the Big Muff Deluxe. The result