Sony Home cinema system. Optical disc player type: DVD player. RMS rated power: 1000 W, Audio output channels: 5.1, Audio decoders: Dolby Prologic II / Dolby ProLogic / Dolby Dual Mono / Dolby Digital/DTS. Center speaker RMS power: 143 W. Satellite speakers RMS power: 4 W. Mid-range driver size: 57 mm, Woofer size: 160 mm