I ordered one of these bad boys so far for my project on my car. I''m fitting two of these suckers in a 1996 Mazda MX-6 in their own custom sealed boxes. The only bad thing was when I received the Sub, i discovered a small crack on one of the supports from the metal frame. But with Sonic Electronix's customer service, it was no problem working it out and now I'm getting another brand new one. I know these things are good cause my friend has one and it honestly feels like your getting punched in the back when its cranked :)