Literally, a friend of mine gave me this subwoofer a year ago because he upgraded to a much more powerful system. I now have this in the trunk of my car and with the right box ( not those under the seat boxes they dont let the sub have its potential) but a sealed box thats decent sized, you can seriously impress your own self with these subs. I plan on getting another one and a box for 2 of them. Great subwoofer, great price, just GREAT! ( P.S. the best way to wire this subwoofer is bridged on a 200 watt 2 channel amp, set the gain to about 3/4 and adjust to your preferences.)