
The SIB Butt Face combines distortion and fuzz in a single pedal, with its character shaped by a blend of transistor-based fuzz and diode-clipping distortion stages. Its primary control adjusts the overall gain, which shifts the texture from a compressed, sputtery fuzz at lower settings to a thicker, more saturated distortion as it is increased. A separate tone control alters the high-frequency content, rolling off treble for darker, rounder tones or opening it up for sharper, more cutting sounds. The pedal's output level sets the overall volume, allowing it to drive an amplifier harder or sit at unity gain with the bypassed signal. True bypass switching removes the circuit from the signal path when disengaged, preserving the guitar's uncolored tone. The unit is housed in a compact, rugged enclosure with standard input and output jacks, and it operates on a standard 9V DC power supply, though no battery compartment is included.