Thomson Home Cinema System DPL 912 VD. Optical disc player type: DVD player. RMS rated power: 160 W, Audio output channels: 5.1, Total Harmonic Distortion (THD): 10 %. Center speaker impedance: 4 Ом. Satellite speakers RMS power: 25 W, Satellite speaker impedance: 4 Ом. Subwoofer RMS power: 35 W, Subwoofer frequency range: 45 - 200 Hz