If you are only going to be streaming you could go a lot cheaper and probably simpler with a Sonos Connect:Amp or Bluesound PowerNode. If you need more power then hook up the non-powered versions, the Connect or Node, to a decent amplifier, that is what I have in a couple rooms.
Or look into Roon and amps that are Roon endpoints. Michael Lavorgna at Audiostream raves about Roon's ability to browse music.