Sony Home Theatre Component System HT-SF2000. RMS rated power: 1000 W, Audio output channels: 5.1, Total Harmonic Distortion (THD): 10 %. Center speaker RMS power: 143 W. Satellite speakers RMS power: 715 W, Satellite speaker impedance: 6 Ом. Subwoofer RMS power: 285 W, Subwoofer frequency range: 150 Hz, Subwoofer impedance: 3 Ом. Front speaker dimensions (WxDxH): 300 x 1229 x 300 mm, Center speaker dimensions (WxDxH): 260 x 80 x 91 mm, Center speaker weight: 0.6 kg