Package: Alpine Type-S SWS-12D4 12" Inch 1500 Watt Dual 4-Ohm Car Subwoofer + Rockville RSV12 Single 12&rdquo; Vented Subwoofer Enclosure + Sub Box Wire Kit With 14 Gauge Speaker Wire + Screws + Spade Terminals Alpine Type-S SWS-12D4 12" Subwoofer Peak Power Output: 1,500 watts/RMS Power Output: 500 Watts Rockville RSV12 Single 12" Vented Subwoofer Enclosure Proudly Made In The USA, Using Only The Finest Quality Materials - For The Best Level of Performance From Your Subs! 10 Drywall Wood Screws (Wood screws are the type of screws; the screws are actually made of metal)