I have bassbox pro and I'll model up a box for you if needed. Couple things to remember is that the smaller the box the larger the port needs to be making the actually size of the box smaller if that makes any sense at all. Most of the time if the volume needed is lets say 3 cubic feet you'll end up needing about 3.5-3.75 minimum to get 3 cubic feet net. If you give me the max outside dimensions I could see how it would model up.