Specifications: Satellite: Driver Size : 2x2.75" Frequency Response : 170Hz ~ 20KHz Output Power (RMS) : 6 watts X 2 Impedance : 4 Ohms H15.6,L7.5,W9.2 Subwoofer: Driver Size : 5" Frequency Response : 55Hz ~ 160KHz Output Power (RMS) : 26 watts Impedance : 4 Ohms H18.6,L25,W15