I need to add some bump to my DD F250. I want the box to fit under the rear bench seat, which leaves me with a lot of restrictions. Im limited to about .70 of air space and a sub with a mounting depth of no more than 5". I know with what I have Im not going to be winning any SPL contests, but I like my music loud and clear. I cant decide on either running two 8's or a single 10. I want the loudest, clearest set up I can get. Im open to any and all suggestions.