The Electro-Harmonix Bass Big Muff Pi is a fuzz pedal designed specifically for bass guitar, delivering a thick, creamy distortion with a focus on preserving low-end frequencies. It features controls for Volume, Tone, and Sustain, along with a bass boost switch and dual outputs. This pedal is known for its long sustain, fat fuzz sound, and ability to create a range of tones from subtle coloration to heavy, crunching distortion. The rugged metal chassis ensures durability, making it suitable for both live and studio use. Designed to sound like the classic Big Muff Pi, but for bass.