Power Output 20W + 10W X 4 ( 6000w P.M.P.O ) Speaker Unit / Size Main Unit : 10.16cm (4)/12w, Satellite : 7.62cm (3)/3W Impedance Main Unit : 4, Satellite : 8 Frequency Response Main Unit : 40Hz 200Hz, Satellite : 200Hz 20kHz S/n Ratio 55dB Separation 35dB Bass Up/down ±15dB Sensitivity 500mv RMS @ 1kHz Fm Frequency Receiver 88mhz To 108mHz Power Supply AC 220v 240v / 50Az Controls Provided Volume & Bass (rotary Type) , PA/scan , Mode, Prev/tune- , Next/ Tune+ Input & Output Jack RCA Jack