HDMI i2s Cable

@docroasty.  Thanks for the info.  I'll look into phasure.

Keep an eye out for a 2 meter Wire World Silver Starlight 5-2 HDMI cable on ebay. These do come up from time to time. There are currently 1 meter versions available now, but 2 meter is always better. This is just about the best HDMI cable I have found and is only 2nd to the $4k Nordost Valhalla HDMI cable. Even though it’s a really old cable, it’s made using 24awg heavily silver clad OCC copper conductors for the main i2s signal wires.  It's actually the only HDMI cable made that used OCC copper.

I’ve tested many other current model cables and rejected them. This old cable actually performs better than almost every other modern cable except for the Nordost Valhalla (which is insanely expensive). Cost for this Silver Starlight 5-2 is typically $300-500 used.

@auxinput. Thanks for the advice. When it comes to i2s, I’ve read that shorter is better. The Matrix will be close enough to the DSD for a .5 meter cable. 
I’ll be running a WW Starlight USB from an Innous Zenith to the Matrix and somebody’s HDMI cable from it to the DSD. 

Here's one under $500. 

https://kitsunehifi.com/product/generic-i2s-hdmi-cable-0-3m/

I don't have any experience with i2s, but every other digital interface/cable that I have used still has problems with shorter cables.  This includes HDMI, S/PDIF, USB. 

Since i2s is just about the same as S/PDIF, but without the S/PDIF wrapper, it would be my opinion that shorter cables would still have problems. 

The problems with short cables has to do with the square waveform digital pulses being reflected at the receiver back down the cable to the source.  These reflections alter and distort the new pulses being generated at the source transport.  Since i2s is just another digital square waveform format, I would imagine that it's still affected by short cable problems.