Class A push pull tube amplifier Input:LINE1/LINE2/LINE3 Power output:9 Watts RMS x 2 into 8 ohms THD(1KHz):≤1% @0dB/1Khz Output Impedence:4-8 Ω Input Impedance:100 kΩ Input Sensitivity:560mV S/N:84±0.5dB Frequency Response:35Hz-25KHz (-3dB) Vacuum tubes:6N3x1;6N1x2;6P6Px4 Power consumption: 150W Dimension:340mmx295mmx170mm Product weight:11KG