3 Levels Boost function for different sources. AGC&Stand By, Full Function remote controller, Piano finishing decorated Specifications: 1) Rated power output: a) Subwoofer: 100W b) Satellite: 25W 2) Input sensitivity: ?0% a) Subwoofer: 200mV b) Satellite: 350mV 3) Voltage gain: a) Subwoofer: 40dB b) Satellite: 27dB 4) Isolation: no less than 64dB 5) S / N: 70dB 6) Frequency response: a) Subwoofer: 20 - 140Hz +3-3dB b) Satellite: 80Hz - 20kHz + 0-3dB c) Speaker: subwoofer: 10" / 8Ω, 100W d) Satellite: 5" 4Ω, 25W + 1" 4Ω, 5W 7) Dimensions: a) Subwoofer: 330 x 330 x 420mm b) Satellite: 110 x 224 x 280mm Packing: Subwoofer: 452 x 417 x 492mm Satellite: 548 x 420 x 356mm