Don and I have been talking about a 'super 115' for me (i.e., a very lightweight, small, rear ported 115 with a high quality 115 coax like one of the Bayma models, similar to the 112 coax he made for me a while back that TBer Vision has now).
Ken, out of curiosity, what is the gross internal volume of this cab, and do you know the port dimensions?
Reason I'm asking, I have a small (2 cu. ft.), sealed, 15 cab that was actually the speaker section of an Acoustic combo from 1987. I want to rear port it and load with a neo, to use on small club dates, etc. This cab is built well, and will serve the purpose for what I intend, but every time I ask for a recommendation as to port size and depth, etc., I get the old " It's too small to sound good" answer. I've got a Dr Bass 1260 Slant (ceramic) which has truly amazed me for close to two years now, but I'm trying to go even lighter, and already have this cab anyway.
I don't expect to be playing stadiums with it, and know that the low end will be compromised by the size, but, doggone-it, I know there's an optimum way to port it for a good full range tone. After all, Bag End does it, MarkBass does it, and so on....
BTW, I'm thinking of using a Kappalite 3015 full range in it but am open to other options as long as it's neo. Which Beyma model are you looking at?