Specifications Stereo KT150 2 x 25 Watts Class A into 8 Ohms at 240V AC Load: 8 Ohm Nominal Distortion @ 1Watt: <0.1% No Feedback Frequency Response: <10 to >40KHz ±1 db Consumption: – 185 Watts Valves: – 2 x KT150, 2 x 6H23N