Wired would be my preference. You probably will want a renderer, the usual suspects are Bluesound, Bryston, Auralic, Aurender, Lumin, etc. Least expensive quality option would be the Bluesound Node 2i. If you ultimately would like to improve the sound, go from there, but the Node is a very good digital transport.
I currently use the Bryston BCD 3 which has a bit of a learning curve is several times more costly than the Node but does sound pretty awesome...
I currently use the Bryston BCD 3 which has a bit of a learning curve is several times more costly than the Node but does sound pretty awesome...