SPECIFICATION : POWER OUT:5W+3W?(RMS) SUB-WOOFER: 5W SATELLITE: 3Wx2 RATED IMPEDANCE: 4+4+4(OHM) SUB-WOOFER SPEAKERS: 30Hz-180Hz SATELLITE SPEAKERS: 180Hz-18KHz SEPARATION: Y45dB S/N RATIO: Y85dB DIMENSION: SUBWOOFER: W240xL220xH135mm SATELLITE: W95xL130xH90mm WEIGHT: 4.2KG