This Bazooka powered subwoofer tube offers a simple way to add some bass to your car's sound system. With a built-in 100-watt amplifier powering the 6 1/2" woofer, you get rich, filling bass without the hassle of a complicated installation. It has speaker-level and RCA inputs to easily connect it to your existing audio equipment. It includes everything you need including a power harness and all the mounting hardware.