Specifications: 1) Output power: Subwoofer: 25W, Satellite: 5W x 5 (RMS) 2) Frequency: 40Hz-18kHz 3) S/N:>=85dB 4) Controller: surround, center and bass 5) Subwoofer: 5", magnetically, 4ohm, 30W 6) Speaker specifications: Satellite: 3", magnetically shielded, 8ohm x 5 7) 794sets/20'FCl; 1646sets/40'GP; 1930sets/40'HQ