My Auralic gear is best connected with their proprietary Lightning Link which allows the pieces to share resources and talk to each other. It’s a noticeable improvement over USB or any of the spdif connections - all of which i tried. Lightning link communicates over hdmi cable - no video.
I was using the stock cables for this digital connection but had this cable laying around. I was astonished at the improvement over the stock cable (digital “bits are bits” orthodoxy is now blown up).
