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 - 125Hz +3-3dB b) Satellite: 80Hz - 20KHz +0-3dB 7) Speaker: a) subwoofer: 8" / 8Ω, 100W b) Satellite: 5" / 4Ω, 25W + 1" / 4Ω, 5W 8) Dimensions: a) Subwoofer: 300 x 300 x 515mm b) Satellite: 130 x 260 x 290mm Packing: Subwoofer: 386 x 376 x 608mm Satellite: 806 x 360 x 376mm