Rockford Fosgate has always been known as "The PUNCH" and the P2 10" Punch car 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 10 inch subwoofers perform best in standard sealed and vented enclosures. Includes diamond cut cast aluminum trim ring. Optional grille insert available.