Peerless by Tymphany 830946 6-1/2 Paper Cone Woofer Speaker 4 Ohm Works great as a subwoofer in compact systems Sculpted and vented stamped steel frame promotes motor cooling Powerful ceramic magnet system with bumped back plate for full excursion Coated paper cone with oversized half-roll rubber surround Long-throw 1-1/2&quot; voice coil