I am still quite curious if anyone has had meaningful opportunity to check out a single brand - but across the line:i have heard the Reference and Select in the same system at an audio show. i did not hear them quickly A/B. and it was a show system and not my own files and server. but i could hear the differences. you hear farther into the music with the Select, more textures and nuances. less processed. more like my analog. but the Reference does all of those same things, just less by degrees. same family sound and sense of musical rightness.
MSB - Premier vs Reference vs Select
heard the Premier but not with the other two. similar sound, less by degrees. as you might expect, there is a bigger jump from Premier to Reference, than Reference to Select.....but there is a magic with the Select that is singular. the laws of diminishing returns are legit.....but at the top of the heap there is a prize. :-)