Alpine SWS-12D4 12" Dual-Voice-Coil 4-Ohm Subwoofer
Alpine has certainly built up a solid reputation with its Type-S line, and the SWS-12D4 is yet another addition that earns its stripes. Trickle-down technologies from the higher-end Type-R models ensure that the SWS-12D4 punches above its weight, and the details can back up the reputation. The Kevlar-reinforced pulp cone is combined with a Santoprene surround for tight, accurate bass, and the dual voice coils are designed to handle up to 500 watts RMS. For the money, the Alpine SWS-12D4 offers amazing performance with practically zero drawbacks.