I just got my setup down and it is very nice and loud, I'm running 4 18" Fi BL's on two Sundown 3000D's, its just I am wanting to try new subs. So thinking either 4 15's or 2 or 3 18's or anything really. My main concern is just I am going to be losing a lot of cone area changing but don't want to lose output. It will be in an explorer with about 16 cubes to work with no wall. Give me some opinions, 1200 bucks to work with and really wanting to hitting 152ish range in a nice low tuned box powered by the two Sundown 3000's.
