Car Audio Fanatics wanting big bass can rely on the Rockford Fosgate Prime R2D2-12 Dual Voice Coil Subwoofer This 12" Prime Subwoofer rocks 250 Watts RMS / 500 Watts Max power handling and the 2-ohm dual voice coils provide awesome installation flexibility The mica injected polypropylene cone, and their stamp-cast baskets with spider venting - typically reserved for more expensive models - keeps the motor running cool while pumping out the bass These R2 subwoofers are optimized for sealed and vented enclosures with a required mounting depth of 5.067 inches and a cutout diameter of 11.25 inches Famous Rockford Fosgate build quality with a full 1-year warranty