This powered 10" subwoofer polymer enclosure by Infinity is a very compact combo unit designed to maximize a small space area such as a trunk or cargo area of a SUV. The bass on this unit is great for a 10" with only 200 watts with passive radiator. It's not going to blow away the competition or rattle the car next to you but it offers good clean performance in a small package of about 1 cubic foot. Easy to connect and several dial options to adjust levels with an included gain remote the Infinity Bass Link is something to consider.