Soundstream VGW-12 is a 12-inch high-performance SQ subwoofer with a proprietary cast aluminum basket and UDV cooling technology. It features a low distortion Nomex/Honey Comb cone, a black progressive roll Conex spider, a C-Lock rubber gasket, and an XLS Santoprene surround. With its dual 4-ohm voice coils, 2.57 TIL Glass Fiber voice coil former, woven tinsel leads, vented & extended pole piece, low carbon top & bottom plate, rubber magnet cover, and 120 oz. dual stack magnets, the VGW-12 can handle up to 600 watts RMS. It has an SPL of 87 dB and a recommended box size of 0.79 cubic feet.