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