Rootboy

Is a JBL D140 a good match for an Ampeg B100R cabinet? I am trying to atone for all of the horrible speaker cabinets I made as a kid… So I'm trying to determine which model of raw speakers I already own (JBL D140, K140, Carvin [Eminence] PS15, and unknown old CTS) will be the best match for an empty Ampeg B100R Thiele-design ported cabinet I got last week. Total internal volume is 1.732 cubic feet (sans speaker), has 36" x 10" x 1" "felt" damping material, and two 2.875" x 6" (with cardboard tubes) ports. I tried using the Eminence Designer software I got for Christmas and I'm not having much luck, as it seems that software is more about telling you what cab to make for your existing speaker rather than what speaker to put in your existing cab. I'd like to use the D140 although the B100R is a front mount design and I will have to enlarge the hole for either of the JBLs as their frames are slightly too large. I don't mind doing that if it's a good match, but it would be nice to save the effort if they are not the best match. I noted Bill Fitzmaurice's comment about JBL's working nicely in small ported cabinets. And I am all for his idea of using software rather than trial and error, especially when enlarging the baffle hole does require a fair amount of set up to do nicely. The B100R *is* a small ported cabinet - too small for D140, or just right??