As far as I can ascertain...this is not a NL system. I can remember the days when I had an Avant 65, BS5 (via MLNL Converter) in the lounge, BV10 and another BS5 (ML) in the Sitting Room and a Western Digital NAS and Essence in the office/home network. That was all very slow and cumbersome.
The Eclipse (LG Music Player) is very handy on picking ANY network database (My music NAS, my Auralic Streamers internal server and and HDD connected to my Laptop) and thus gives you ability to select via the app. Im also sure that if I put my Astell & Kern DAP in "broadcast" mode, i.e. in DNLA mode, that too can be selected.