I found a nice bandpass alpine type S 10" subwoofer enclosure box on ebay local for only $10 and a perfect match for my trunk. the box is 13*x13'x26 1/2". The thing is that I have an Eclipse 10" Aluminum sw810? but anyways according to the enclosure calculators Ive used the enclosure measurements are what I would need for a sealed box. Now is it a bad idea to turn this bandpass box into a sealed enclosure? It has only one port and that would be where I would cut the hole for my sub. Or should I just try to run it bandpass?