Features 3" BASV High Temperature Voice coil Non-Pressed Paper cone Double stitched foam surround Dual poly-cotton dampeners Die-cast aluminum vented basket Rubber gasket trim ring Large Gauge compression terminals Protective magnet cover Specifications Dynamic Power Handling: 3000W Nominal Power Handling: 750W Sealed enclosure Box Volume: 3.0 cu ft/ 84 Ported Enclosure Box Volume: 3.4 cu ft/ 96.27L Box Tuning: 39Hz Port Area: 40 sq in./ 258.06 cm2 Port Length: 18in/ 45.72cm Description