Well I posted this topic in the car audio corner, but no responses, so i'll try here.
I can't find the 5" ports the box requires, but was wondering if the critical factor of the ports is the volume of the tube itself. Doing some calculations if I use two 4" ports which I have from the single momo bandpass design, and an additional 2" port, I would only be losing .59 cubic inches of space in the ports themselves. I'm assuming that with the 2 inch at 13" it will be in tune with the other larger ports?? This assumption may be wrong as I think about it, but I would really like to have some bass this summer. If I can't get this box to work I guess i'm going to have to cut it in half and just use the sealed chambers :(.
Please help me solve my dilemmma.