Effect for electric guitar Amp in a Box/Preamp. Based on a the legendary British Class A combo from the early 60s, features 2 channels - Channel A/B, Cabinet Simulation. In a solid metal box, powered by 9V power supply (centre negative, not included). Comes with a True bypass. Battery operation not supported. Dimension: 93 x 52 x 42 mm. Weight 160 g. In a black yellow finish.