RMS: Woofer: 1 x 10W Satellites: 2 x 3W Frequency response: 40Hz - 20kHz Channel crosstalk: >40dB S/N ratio: >70dB Speaker system: 4" woofer on main unit 2 x 2.25" drivers on satellite units Product size Subwoofer: W118 x H215 x D250mm Satellite speaker: W90 x H102 x D90mm Packing size: L558 x W323 x H570mm Packing: 4 sets/carton QTY 20: 1,184 sets 40: 2,448 sets 40HQ: 2,784 sets