Sencor SCS WA1203 Active Subwoofer

300mm Black Paper and Non-press ConeFine Quality NBR Rubber-EdgeRound High Density Paper TubeWith High Power and Low Distortion AmplifierWoofer Diameter 30 cm (12")Max. Peak Output Power 600 WMax. RMS Power Output 300WTHD < 0.5%Frequency Low Pass 50 - 500Hz + / -1.5 dbAdjustable Low Pass FilterInput Sensitivity 0.15 ~ 8VSpeaker Impedance 4ΩStereo RCA Input Connectors