Hi,
I have been looking for reasonable music player to be connected between my NAS and stereo amplifier, via network cable and rca to amp.
I can use something like Sonos connect but I thought why not make one based on raspberry pie.
I have very limited idea on how this raspberry business works, but it will be an interesting journey as I have some computer knowledge.
I would appreciate if somebody can guide me on
1: which raspberry pie unit I should buy.
2. Which software I should install
The requirement is
- The unit accepts Ethernet cable
- It can play high resolution flac files, possibly dsd too.
- The unit can be controlled via tablet pc, I.e. iPad.
- It has DAC as my amplifier doesn’t have one.
And it needs to be cheap!
Thank you very much for your help.
I think that you really need to do some Googling here. While many people will be happy to present their views of a particular board etc., they almost certainly won’t want to do all your work for you 
.
Thank you for your suggestion. It’s just my raspberry pie sheet is quite blank so I wanted to have a bit of advise to start with.
OK, unless you have a particular reason for not doing so, simply get a RPi 3B+ ensuring that you also purchase a good quality power supply (min. 2.5A). You will also need a DAC, either a USB one, or an i2s one that sits on top of your RPi. The latter will be the cheaper solution. Allo, Hifiberry & IQaudio all seem to be popular (there are some examples in the Volumio shop).
Download the latest Volumio image from the download page (checking it’s MD5 sum), and flash to a 8GB sd card with Etcher or Win32diskimager.
Read the documentation in my signature, & away you go.