For the last couple of years I used a Mac Mini with external HD as my digital source. Recently got the itch to experiment a bit and moved my library to my NAS drive - left everything else the same. I wasn’t expecting to hear any difference at all, as again, the only change I made was moving the files from a local HD connected via FW to my MacMini to a NAS drive connected via Ethernet. The improvement was IMMEDIATELY obvious. Needless to say, I was fairly shocked. A couple of weeks later I installed an Auralic Aries, completely bypassing the MacMini, and was again shocked by the across the board improvement. I tried both the Lightning and Lumin apps and have a preference for the later - it is a joy to use on an iPad.
Like anything in this hobby, YMMV.
Like anything in this hobby, YMMV.