RMS: Woofer 30W Satellite: 5 x 10W Frequency response: 40Hz - 20KHz Channel crosstalk: > 50dB S/N ratio: >70dB Speaker system: 5.25" woofer on main unit 5 x 3" drivers on satellite units Product size Subwoofer: W155 x H280 x D300mm Satellite speaker: W90 x H130 x D110mm Packing size: L497 x W423 x H600mm Packing: 20: 446 sets 40: 934 sets 40 HQ: 1,080 sets