Internet Radio - help please


Hello,
My friend just spent about $700 for a reconditioned Marantz - model???. I'm very impressed with the volume of stations and sound quality. It has an internal DAC and once set up gets free internet radio from all over the world. I do have an external DAC with RCA & USB inputs. So, hoping to make use of the DAC with another ??? device.
I'm considering an external device, not a laptop, that I could hook up to my external DAC that will accommodate internet radio via ethernet connection. Hoping to spend less than $300.
Any suggestions?
Thanks and have a great day
pdspecl
The Logitechs have both optical (Toslink) and coax (RCA) digital outputs.

I use mine into a EE MiniMax DAC via the RCA (coax) digital out.
My cd playback is through a modded Jolida JD100 with Mullard tubes. I'm happy with this player but did acquire an external DAC a few years ago for a secondary system that I have since disbanded.

The AUNE DAC/Headphone amp shipped direct from China for about $175. The DAC performs very respectably, especially considering the cost. It does have a COAX input so I should be all set.

I appreciate the feedback and will likely purchase the Duet very soon.