Rockford Fosgate P2D4-10 Punch P2 DVC 4 Ohm 10-Inch 300 Watts RMS 600 Watts Peak Subwoofer Kevlar reinforced paper cone Santoprene Surround Hybrid stamp cast basket provides strength while minimizing weight and resonance 10-inch, dual 4-ohm subwoofer with 600 watts maximum power handling (300 watts RMS) Kevlar fiber reinforced paper cone with high-density poly-foam surround High-temp voice coils with spun-laced Nomex re-inforcement collar Flex fit basket for slight adjustments when mounted One-year limited manufacturer's warranty