Pump up the volume and pound out some serious bass with the Punch - P1S4-10. These 4-Ohm SVC Subwoofers from the Rockford stables were the first in a family of world famous subwoofers called The Punch. They were the Woofer of Choice during their inception in the 1980s and, for Car Audio Fanatics; they still continue that tradition to the present day. The Punch - P1S4-10 is a 10 inch SVC Subwoofer that has a nominal impedance of 4-Ohm and boasts of a peak power handling of 500 Watts and 250 Watts RMS. Sporting Kevlar fibre reinforced paper cones, this Punch - P1S4-10 subwoofer delivers bass impact that you can feel while the patented VAST technology increases surface cone area up to 25 percent. The Punch - P1S4-10 is optimized for standard sealed and vented enclosures and can accommodate a grille insert using the included soft touch ABS trim ring. The Punch - P1S4-10 also features a high-temp voice coil with spun-laced Nomex re-enforcement collar that helps to keep the motor cool and a linear spider design with embedded 16 AWG tinsel leads.