43CWRT82 8" CompRT 300-Watt Dual 1-Ohm Voice Coil Slim Subwoofer The only thing thin about the CompRT Subwoofer is the mounting depth. Whether its on the road sand or trail these tough subs work perfectly in nearly anything with a motor. 8" CompRT 2 Ohm The CompRT Eight-Inch Subwoofer is an all-weather thin subwoofer with a pair of 1 voice coils. To be a truly motorcycle/ATV friendly subwoofer the sub must be able to take the rain snow and sun and keep on playing A UV-resistant cone and surround help make the CopmpRT sound great where the road (or trail) take you.