I'm going to be building a stage that is 8'x 2'x 3'.(roughly) I want it to dual as my sub, adding 2 15's, front firing.(yet to be determined) Ported at the front also. Now would I be better off building one big box with the above dimensions? Or would 2 Adire boxes, which will fit inside the stage, be better? I've seen this setup before in an IB setup. The back of the stage opened into another room. Unfortunately, I don't have that luxury.