Digital coaxial advice needed

Well, what’s reasonable? I was looking at Lessloss C-marc.
https://www.lessloss.com/cmarc-digital-cable-p-226.html
But higher than that i wouldn’t go. Rather a bit cheaper.

However, i just got an answer from Nuprime and they say HDMI is the best option!?

That would be "i2s" using an HDMI type cable. That is generally the best connection if both devices use the same i2s protocol. The one PS Audio came up with uses the HDMI. There is no standard for i2s yet so compatability issues can come up. As I understand it. Some use bnc cables as well. I haven't played with that yet. Just been researching it.

You should be able to use an hdmi cable that you may already have. Give it a try.

+1, Audio Envy digital coax.

The darned cables all sound different unfortunately.What works best for you may not work well in my system.Audio Envy is a good place to start.I really like their ics and pcs.The digital cable did not work out for me though others have been very happy with it.