Scosche HDW10F - 10" 4-ohm Car Subwoofer (Each): * 450W max (150W rated) * 10" IMPP injection molded polypropylene cone for precise musical reproduction * Rubber surround provides enhanced durability * 30 oz oversized strontium magnet * 2" copper-wound voicecoil for superior power handling * 30Hz - 125Hz frequency response * 4 ohms impedance * Heavy gauge steel basket