Specification Output:A1 10W+10W(8Ω) A2 30W+30W(8Ω) AB 200W+200W(8Ω) Distortion:≤0.05% Frequency:5Hz-80kHz(-3dB)(BYPASS) S/N:≥95dB Tubes: 6N11 x 2 for pre-amp. Input Voltage: 220V(+/-10%)