I currently own 2 PG RSD12s (dual 4), 1 Fi Q 12 w/BP (dual 2) and 1 IDmax 12 (dual 2). I have a sealed enclosure, about 1.4sq ft volume. I had the IDmax in that box in a little Hyundai Accent hatchback and it was perfect. Now I have moved to a Mazda 3 with a trunk and it is not near loud enough for me. Before I was limited by lack of trunk space, however now I have more room and can look at more options. I would like to use the subs I already own. They would be powered by an AQ1200.
So which configuration would you guys suggest for the max volume while keeping the sq of the subs? I honestly know barely anything about ported boxes, so if you vote for a ported option could you give me sq ft and port ideas?