Hi, I'm building a house and plan to put in two zone audio in the dining/living (5mx10m) which links through double sliding doors to porch (5mx3m). The wiring has just gone in for an indoor zone (2 pairs in ceiling in parallel) and outdoor zone. Now I need to work out what I will do for source. At present we have CDs ripped to flac24 and mp3 on an external HDD, the radio is rarely on and we dont use audio streaming. I was thinking of using raspberry pi's with class D amp hat (iqaudio), but am losing interest, sounds like a lots of mucking around. This requires a pi for each zone running an OS like rune or volumio, and another pi to act as the server. So I'm looking for suggestions of how to host my flac24s and play them in the two zones either synchronous or asynchronous. Yamaha WXA50 looks to be a candidate, mind you they are $500 above the raspberry pi option, each. A lode la4 and a NAS would be clean but $$$$$$. Can I run a micro form factor NAS/server with two hifi soundcards? It will sit in the pantry (2.5mx2m room) on a high shelf. There is data, NBN and power there. So heat and noise are not big issues as there is a fridge in the same room. EDIT - Because the source is in the pantry, I want to control it from my phone/tablet.