I would go with the Auralic Aries. It is dedicated to your specs. All other products I can think of have built-in DACs or more. Aries sole purpose is to stream to a DAC.
On the cheaper side of products would include Apple TV & Apple Airport, Google Chromecast. which as far as I know can handle FLAC files.
On the cheaper side of products would include Apple TV & Apple Airport, Google Chromecast. which as far as I know can handle FLAC files.