Features 12” 4Ω DVC Subwoofer 2000W Dynamic / 1000W RMS 2.5" High Temperature Voice coil Non-pressed Paper cone Double stitched foam surround High Roll Foam Surround Heavy Gauge Die-cast aluminum basket Wrap Around Mounting Gasket Heavy Gauge Spring Terminals Protective magnet cover 120oz Motor Structure Specifications Sealed enclosure Box Volume: 1.60cu ft Ported Enclosure Box Volume: 1.75cu ft Box Tuning: 35Hz Port Area: 12.57sq in Port Length 15in Description Product Manual