Rockford Fosgate has always been known as "The PUNCH," and the P2 12" subwoofer certainly continues with the tradition. Kevlar fiber-reinforced paper cones deliver bass impact you can feel along with VAST technology to increase surface cone area up to 25%. The P2 subwoofers perform best in standard sealed and vented enclosures. Includes diamond cut cast aluminum trim ring. Optional grille insert available.