From their website : 

Tubulus Argentus i2s Cable

Very neutral and detailed i2s cable, with a realistic, transparent, open and width stereo image!

Review Quote:”…The music gains in detail and it sounds spotlessly clean. There is lots of space making the stage wide and deep combined with a beautiful powerful and layered middle area. The improvements ensure increased involvement and you are dragged into the music. You get the feeling that nothing is getting in the way of the music, as if there is no cable at all…”

Revelation CryoSilver Reference HDMI

AVplay HD-300 has been mentioned.

Has anyone done an A/B comparison between HDMI and RJ45?

So just received my DH Labs HDMI 2.0 Silver plated OCC Copper cable. It cost me less than 100$ with shipping included and is easily an improvement in clarity and focus over my Audioquest Carbon HDMI I used until now that costs double its price. It really enhances the holographic qualities of the Holo May KTE. Easy recommendation in the "budget" category me thinks.