Herman,
I would love to hear more about your vinyl digitizing: in your experience are the results as good as the vinyl? Are you doing 24/96? My experiments doing same at 24/96 with a rather humble Masterlink device were very encouraging. However, the vinyl was still noticeably better so I stopped.
My system is now Orphean bass bins with the Ah! 300 horns. With EQ, no real need for tweets. I am now using a DEQX and it is very promising, though not yet optimized. No digital sound signature whatsoever.
Did you experiment with passive xovers at all?
If I had room for bass horns, I'd do it. Yours look great and must sound incredible.
Perhaps I will try Edgar bass bins or some similar ~80 Hz horn with subs underneath some time.