Rockford Fosgate P1S4-8 Punch P1 4 Ohm SVC 8-Inch 200 Watts RMS 400 Watts Peak Subwoofer Features 2 Inch Copper Clad Aluminum Voice Coil Stamp Cast Frame Structure Features Flex Fit Basket Design Kevlar Fiber Reinforced Paper Cone 200 Watts RMS 400 Watts Peak Power Rating Eight-inch, 4-ohm subwoofer with 400 watts maximum power handling (200 watts RMS) Kevlar fiber reinforced paper cone with high-density poly-foam surround High-temp voice coil with spun-laced Nomex re-inforcement collar Flex fit basket for slight adjustments when mounted Designed for small enclosures