This two-transistor ball of fury is based on the original fuzz face circuit, but reaches beyond the tonal capabilities of that classic pedal to fulfill the needs of a modern fuzz-aholic.  An external bias control allows you to dial in huge, gut churning sizzle or clipped, sputtery compressed tones.  The bias control also keeps the temperature sensitive germanium transistors in line, so that you can always find the “sweet spot” Rolling off your guitar’s volume control will tame this fuzz to produce shimmering, glassy clean tones