Features 10” 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: 1.44cu ft Ported Enclosure Box Volume: 1.66cu ft Box Tuning: 35 Hz Port Area: 12.57 sq in Port Length 16 in Description Product Manual