Oh, I was thinking W-Fi would use the laptop DAC, sort of like with Bluetooth. Yes, I have played flac files via the 5200's DNLA via Media Monkey, which acts as a server on the laptop. The 5200 "sees" them and I can see them on the on screen display, sounds great. Those are tracks that I ripped from CDs.
Not sure if the 5200 could "pick up" the digital stream that the Amazon Music app would be producing.