i visited both rooms at Axpona with MSB Select II's twice.
in the room with the CH amps (upper picture), i did hear CD on the transport compared to higher rez (24/88) from a file. it was not the same recording so the value of the compare is marginal, but to my ears i preferred the higher rez file. i recognized what the higher rez does in my room compared to redbook files (which are still fantastic in their own right). assume it was using the i2s Pro interface. but i did not ask about that as no one in that room seemed to know much about the MSB (when i was present).
in the lower picture with the MSB amps, we never did any A/B with and without the new interface, so impossible to comment on it's contribution. prior to the show i had spoken to Vince about him sending me the Pro USB module to compare to my Renderer v2 and regular USB in my system. when that happens i will comment.
it was great to see Vince again. preferred the overall sound of Vince's room......but preferred the digital in these 2 rooms over any others i heard at the show......big surprise
(for whatever that is worth at a show).
as an aside; i asked Vince about the new MSB amplifiers, he said they will debut at Munich, and the timing did not work to have them at Axpona and get to Munich on time.