Panasonic SB-TP20E-K. RMS rated power: 600 W, Audio output channels: 5.1. Center speaker RMS power: 200 W, Center speaker frequency range: 100 - 25000 Hz. Satellite speakers RMS power: 200 W, Satellite speaker frequency range: 100 - 25000 Hz. Subwoofer type: Active, Subwoofer RMS power: 100 W, Subwoofer frequency range: 28 - 300 Hz. Center speaker dimensions (WxDxH): 250 x 140 x 145 mm, Center speaker weight: 1550 g, Subwoofer dimensions (WxDxH): 162 x 420 x 457 mm