Audax HT170JL28 6-1/2" cabinet design?

[JeremyD]

I'm currently working on an MTM design using these drivers here. Now, I've modeled them up and decided that a sealed enclosure is probably my best bet. Ported worked, but for really any gain of low end extension the cabinet had to be much larger than I wanted. I decided on 2 cu ft sealed per cabinet (2 drivers per cab), which is still a little big for my tastes but I suppose it will do. Now, looking at the space I have to work with, and the fact that these are already pretty large, I'm wondering if I should go transmission line with them? Looking at the specs for these drivers, would there be any real benefit to go tl with them? If so, how should I go about doing it (have never designed a tl for use with more than one woofer)?