HDMI i2s Cable


I'm looking for an HDMI i2s cable to go from a Matrix Audio X-SPDIF 2 to a PS Audio DirectStream DAC. I realize there are a lot of options at various price points.  I'm trying to stay around $500.  Anyone have any experience with the Tubulus HDMI i2s cable?
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I found it quite flexible. Not as stiff as some people say. Can take short bends quite well. The connector is good quality but is quite big and need to take into account that portion can't bend. So I suppose just plan the route well and order an appropriate length. Also consider the orientation of the i2s ports eg if one is horizontal and the other vertically aligned, may need to allow a short length to twist the cable a bit. 
I'm going from an Audio Matrix X-SPDIF 2 to a PS Audio DSD.  I will certainly look into the orientation before I buy.  Thanks.
Hey guys, can a cable be made to adapt the older style i2s plug like audio alchemy used to the hdmi format? Thx.