I could probably only give each 15 about 2.6 or 2.7ft^3 each... Would that work?
yeah that could work for each 15.. would prolly be minimum volume for them, but theres nothing wrong with that..
yeah what he said ^^ if he doesnt wanna get rid of the kicker..then get 2 more kickers and build one big box.. would sound much better then mix matching subs and not having the right cubic feet for those 12s