Total Output 28W Subwoofer Output 12W Satellite Output 8W*2 Distortion 0.3% 1w 1kHz Sensitivity SUB: 50mV SAT: 300mV Freqency Response 30Hz~20kHz S/N Ratio >80dB Separation >45dB/=45DB Speaker Unit Subwoofer Speaker Unit 4" Satellite Speaker Unit 3"*2 Power 220v/110v 50Hz/60Hz Subwoofer Size 300*170*270mm Satellite Size 123*117*192mm