I'm not really sure what all that means either. Not very good with enclosures since I've never really looked into it until now.

I was thinking about getting a BXI2600.1 which is Hifonics 2009 amp line. It would be 1700 rms @ 2 ohms. Which would work fine and it's about 300.

Yeah the back seats can fold down. I'm gonna need a lot of Second Skin... lol

What materials did you use for the box? Fiber board?