I have a 2001 chevy silverado ext cab and there are not too many options I can go with for boxes. The biggest I found was a downfire and had a 7in mounting depth and was 0.92cu. I'm wondering what would be a good choice for subs given the mounting depth and space. Money is not really an issue but I did have a few subs(12in) in mind. Kicker L7, JL W3, and MTX 5500. I know the JL would be the cleaner sub and the L7s would hit hard and then there are the mtx and your probably wondering why I even considered those. I've always had MTX subs and they have always taken a beaten and continued to sound good. My car has 2 mtx 10s and 2 mtx 12s so I am used to a system that pounds. Could any of the 3 speakers I listed get me close to what I'm used to and if not what is a better choice? As far as the amp I'd be using, well I don't know what to get until I decide on the subs. I need to get something that would match the setup.