The last time I used Solid Edge I think it was the v18 (if I remember well), so that's a long time ago, and I used it not for designing speakers but small systems for homework
I don't know for the paying versions of the speaker calculation softwares, but in the free ones (WinISD, Akabak, Hornresp) you can't import a shape from anywhere (you can convert one from Hornresp to Akabak though)
Actually, I think that converting a shape from a 3D CAD soft would be complicated to do, because Akabak for example works by converting the "Ducts" and "Horns" into electrical equivalent stuff.
This means that Solidedge, to convert any section, would have to know what shape it has and what data to enter in akabak. And I don't even talk about the boundary problems: every person has his own way to draw in these softwares, and the way you draw could change the result (like if you dont close surfaces)
I used Catia and a software to calculate the fluid dynamics, I had to export the Catia Model to another software, mesh it, so that I only had one surface, then save it, and do a lot of other stuff to be able to make a calculation.
Think that would be the same stuff
For example, I don't know if you had already used the SoledEdge module for calculating efforts, but it's really a pain in the *ss !
at that time it took us like 2 weeks to be able to have a result for a small isostatic system with 4 "links", because every time the inputs weren't right