POWERFUL SOUND: Feel your music with the thump and thrum of sound through this 8-inch subwoofer; Sensitivity: 82.1 dB RELIABLE DESIGN: Features 4-ohm dual voice coils, making it easy to get the most out of your power amp POWER RATING: Rated at 300 watts RMS power and 600 watts peak power THERMAL MANAGEMENT: Forced-air cooling system that helps the subs run 25 percent cooler INSTALLATION REQUIREMENTS: Installation requires 4.12-inch mounting depth and 7-inch mounting diameter