No pedal has done more to accelerate rock music than the humble fuzz. The two-voiced DOD Carcosa Fuzz pedal provides a heaping spoonful of vintage and modern silicon colours in a single box. Dual modes and a healthy output stage suit the Carcosa to any amp/guitar combination. Run in front of a clipped amp for traditional chug and sputter, or switch modes into a high-headroom clean amp for thickened low-mids and heightened harmonics. Nick Jennison reviews.