Awesome! Hurry over to Best Buy and Get this Alpine 12″ Dual-Voice-Coil 4-Ohm Subwoofer in Black for Only $59.99! (Reg. $150). Listen to music in your vehicle with rich, clear sound with this Alpine SWS-12D4 12″ dual-voice-coil 4-ohm subwoofer that features improved thermal capacity and mechanical strength for reliable performance.