I'm curious why did old Westlake designs use a 2425J (or equivalent) 1" compression driver without a horn while having a Be TAD on the midrange, what...
I agree the jump from a 4" hard dome mid to a 15" is too far. Better to add a 8" mid bass and go 4 way like the L250. Or maybe a 3.5 way with two 8"...
You goin passive or active/DSP? I would use the 2216. If you go passive you are really going to have to watch driver sensitivity as they are all darn...