Sporting a dual fuzz schematic design pairing gated saw wave and high-gain buzz circuits with a Duality knob for blending the two effects for an even wider spectrum of sound, the Darkglass Electronics Duality Dual Fuzz Engine packs decades of fuzz sounds in a compact, discrete package. Whether you're looking for a creamy vintage edge or a RAT-esque buzz saw attack, the Duality delivers in spades.