RMS: Woofer 40W Satellite: 5 x 15W Frequency response: 30Hz - 20KHz Channel crosstalk: > 50dB S/N ratio: > 70dB Speaker system: 6.5" woofer on main unit 1 x 1.5" teeter + 1 x 3" drivers on front satellite units 1 x 1.5" tweeter + 1 x 3" drivers on rear satellite units 1 x 1.5" tweeter + 2 x 3" drivers on centre satellite units Product size Subwoofer: W200 x H331 x D334mm Satellite speaker: W130 x H195 x D135mm CEN: W355 x H105 x D112mm Packing size: L770 x W605 x H375mm Packing: 2 sets/carton QTY 20: 342 sets 40: 726 sets 40 HQ: 828 sets