Trust 5.1 Surround Speaker Set SP-6600A. RMS rated power: 23 W, Audio output channels: 5.1. Satellite speakers RMS power: 5 W. Subwoofer RMS power: 18 W. Center speaker dimensions (WxDxH): 210 x 70 x 72 mm, Subwoofer dimensions (WxDxH): 185 x 210 x 277 mm. Power requirements: 230 VAC, Surround speaker dimensions (WxHxD): 90 x 120 x 104 mm, Frequency response: 60 - 17.000 Hz