RMS: Woofer 20W Satellites 2 x 10W Frequency response: 40Hz - 20KHz Channel crosstalk: >35dB S/N ratio: >70dB Speaker system: 5.25" woofer on main unit 2 x 3" drivers on satellite units Product size Subwoofer: W225 x H225 x D245mm Satellite speaker: W120 x H120 x D120mm