The JHS Firefly Fuzz is a four knob fuzzbox modeled after a vintage Germanium based Tonebender MKIII. In addition to standard volume and fuzz controls, the EQ knob functions as a treble cut while the Bias knob controls the amount of power feeding into the circuit. This pedal packs a substantial amount of headroom which combined with the Bias power control allows for a wide range of fuzz tones all centered on a vintage Germanium circuit.