12-inch marine Subwoofer with 400 watts (200 watts RMS) peak power handling at 4 ohms * Weather-resistant polypropylene cone woofer with rubber surround * Gold-plated terminals and stainless steel hardware for increased corrosion resistance * ABS plastic protects electrical components and magnet from salt or fresh water spray * Tough Centrex ASA plastic grilles provide additional protection from the elements * Polypropylene cone woofer * Rubber surround * Gold plated terminals and stainless steel hardware * ABS plastic protects electrical components and magnet from salt or fresh water * Tested 500hrs ASTM B117, D4329 for durability and resistance to environment