NAD M50.2


To anyone who has heard the NAD M50.2, how does it compare in sound to other music servers, such as those more expensive from Aurender, etc?
imgoodwithtools
Does anyone have the latest firmware on the M50.2?
i mis volume button on the BluOS app, it say’s now “Fixed volume” how to unfixed

thanks.
Just got a 50.2, and I need to transfer 878gb of files from an ext. hard drive to the 50.2.  I successfully moved a few, but now when I go to the Music folder(MAC), CDs that I ripped on the NAD show as individual folders, but the transfer are "stacking"; all on top of each other on one folder icon. And now I can no longer transfer . Do I need to delete the NAD app and start all over again? Does anyone know what might have caused this?
So the NAD M50.2 msrp is $2500 and it does NOT support DSD? I say that is fine for a $500 Bluesound Node, however, for this level, DSD should be supported. Is the M50.2 just a fancier Bluesound Node?