Max output: 600mw-1.5w Output impedance: 32ohm, 300ohm, 600ohm Input level: 500mv Input impedance: 100k Frequency response: 15Hz-50KHz +-1db Signal to noise ratio: 92db Vacuum tubes: 6N6x2 12AX7x1 Power consumption: 42W Dimensions: 34Lx11Wx16H (cm) weight: 6.3 kg