RMS: woofer 50W Satellite: 5 x 25W Frequency response: 30Hz - 20KHz Channel crosstalk: > 65dB S/N ratio: >75dB Speaker system: 8" woofer on main unit 1 x 2" tweeter + 3 x 2" drivers on front satellite units 1 x 2" tweeter + 3 x 2" drivers on rear satellite units 1 x 2" tweeter + 2 x 2" drivers on centre satellite units Product size Subwoofer: W180 x H480 x D400mm Satellite speaker: W76 x H1020 x D115mm CEN: W405 x H76 x D110mm Packing size: L470 x W245 x H550mm (subwoofer) L1275 x W480 x H190mm (satellite+CEN) QTY 20: 155 sets 40: 322 sets 40 HQ: 378 sets