American Pro 15 inch 550 watt car audio competitton series wooferThis listing is for one awesome 105inch 550 watt subwoofer. We just have a few in stock - so if you want it - please buy it nowModel ws 1415maximum peak power = 550 wattsRapton Voice CoilRubber edgeP.P Rubber Cone4 Ohms impendanceHigh Endurance Professional wooferMaximum continuous music power = 250 wattsScrew Type Terminal