Hello, Thanks for the info. I did see the Audio Playback feature and the Android / IOS app of Synology.
Synology will playback FLAC for sure but the burning questions are
1). If the FLAC playback (signal) from the NAS is going to its own USB then I believe any USB DAC on god's green earth can receive this - why would anyone need the DAC to support the NAS or vice versa?
2). Can the SNAS be connected to a DAC with an USB input?
I still don't comprehend why would they need to recognize each other if the NAS can simply output FLAC through its USB port.
The DAC on my amp or my laptop doesn't need any additional support to sing.
NAD USB Audio drivers for windows is to bypass the laptops' crappy internal sound and am sure it has nothing to do with it's helping the DAC and the laptop support each other.
Sure that no where in the near future either NAD or Synology are going to do anything about it, so maybe I am better off not spending the $$$ on the NAS and continue playing back from my laptop.
Buying an external hard disk is plugging it in the laptop sure is still easier.
Thanks. Cheers.