Rockford Fosgate P3D4-15 Punch P3 DVC 4 Ohm 15-Inch 600 Watts RMS 1200 Watts Peak Subwoofer Features 2.50 Inch Copper Clad Aluminum Voice Coil VAST Vertical Attached Surround For Increased Cone Area Features Flex Fit Basket Design Thermal Anodized Aluminum Cone 600 Watts RMS 1200 Watts Peak Power Rating 15-inch, dual 4-ohm subwoofer with 1200 watts maximum power handling (600 watts RMS) Anodized aluminum cone and dustcap with Rockford "VAST" (Vertical Attach Surround Technique) 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