Features 8” 4Ω DVC Subwoofer 1000W Dynamic / 500W RMS 2” 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 95oz Motor Structure Specifications Sealed enclosure Box Volume: .76 cu ft Ported Enclosure Box Volume: 1.15cu ft Box Tuning: 36 Hz Port Area: 9.62 sq in Port Length: 16in Description Product Manual