The Alpine PWE-V80 160W Compact Power Active Bass Tube is an enclosed powered subwoofer designed for under seat or boot placement in vehicles. With a size of 8 inches and a RMS power of 160W, this single voice coil subwoofer delivers impressive bass performance. The compact design and active amplifier make it ideal for enhancing your in-car entertainment experience. The Alpine brand ensures high-quality audio technology, making this product a reliable choice for car audio enthusiasts looking to upgrade their system.