... , blue wiredrawing PP cone car speaker,Car Subwoofer Parameters CSW-680-10BLUESize10 inchRated Impedance 4 Ω×2RMS power150 W×2 at 4 ... 91 dB at 4 Ω/94 dB at 2 ΩFrequency Range fo-800 HzDC Impedance3.6 Ω×2fo43 HzQts0.36Vas35 literBL14.36 TmXmax ... PP cone,chrome plating T-yoke,plate. Car Speaker CSW-680-12BLUE subwoofer