The Rockford Fosgate P300-12 Punch is a 12-inch subwoofer enclosure that delivers powerful and precise bass to your car audio system. With a 300 watt amplifier built-in, this subwoofer enclosure provides the perfect balance of power and sound quality. The sealed enclosure design ensures that the subwoofer produces tight and accurate bass, while the adjustable crossover and bass boost allow you to customize the sound to your liking. The P300-12 Punch is also easy to install and comes with everything you need to get started, including a remote bass level control.