I used a music streamer II for about a year and was going to upgrade to II+ but changed my mind. II and II+ do not handle 176 192 files. To play those I had to downsample. This is not bit perfect.
Now I sellle down with a Firestone ILTW which chan do async. I like it with indicators showing bit rates. It can handle anything from 44 to 48 88 96 176 192 without problem.
I honestly couldn't care less for anything higher than 24/96. It may not be perfect, but that's just up to personal opinion on what sampling rate you have. Does the MS Pro handle anything higher than 24/96 or is it the same as all of the other Music Streamers? not asking you directly, just wondering if anybody has a pro version, seeing as it's really expensive and apparently has balanced outputs.