An integrated subwoofer with a unique RaceTrack driver design gives you powerful bass, has an optimized center of gravity, and saves a lot of space. This slim 10"x 18" neodymium driver gives you performance that rivals a conventional 15" woofer without the cumbersome size, freeing up room in your vehicle and on the stage, and making every carry in between — home to car, vehicle to venue — much easier.