Rockford Fosgate Punch P3 P3D415 15-Inch  1000 Watt Subwoofer - 4 Ohm 15-inch, 4-ohm dual voice coil subwoofer with 1000 watts maximum power handling (500 watts RMS) Kevlar fiber reinforced semi-pressed paper cone with high-excursion Poly-Ether-Ester surround High-temp voice coil with spun-laced Nomex re-inforcement collar Mount in either direction; reversible cast aluminum trim ring included Dual linear spider with embedded 16 AWG tinsel leads