Another possibility in a similar vein, if size and weight are important and you want "enough" low end as opposed to "a LOT" is the Audiokinesis Thunderchild range. No DIY though; you have to buy them straight from the company.
Similarly, if you want a more "mid-bumped" "traditional bass cab" voicing, the Baer ML112s are pretty sweet. I finally got to play one the other day and if I didn't have a Thunderchild already, I'd be looking pretty hard at a Baer.
That said, I've yet to play a 12/6 (which is the fEarful in that size/weight range); just a 15/6 and a 1515/66, which were solid cabs (a little brighter than I'm used to) but just too big for my public-transportation-using needs.
Similarly, if you want a more "mid-bumped" "traditional bass cab" voicing, the Baer ML112s are pretty sweet. I finally got to play one the other day and if I didn't have a Thunderchild already, I'd be looking pretty hard at a Baer.
That said, I've yet to play a 12/6 (which is the fEarful in that size/weight range); just a 15/6 and a 1515/66, which were solid cabs (a little brighter than I'm used to) but just too big for my public-transportation-using needs.