Shunyata comparison

I have both cables that you mentioned. The Alpha HC to me is a warmer sounding cable. The NR is more neutral. Even though the Alpha HC is noted to be for High Current, I do use it on ALL components even low current devices with success. SO in summary its not which is better, its do you want some warmth or you want some neutrality?

I also have a King Cobra V1 "i" which is very warm, laidback and a perfect antidote for poor recordings.

I use the Sigma NR on my digital source and Alpha HC/Alpha NR on my Amp. I find this to be best configuration for my system and listening tastes. I am beginning to think that having ONE Sigma NR placed strategically is all you need, otherwise it could be too much of a good thing. I also find the Sigma to have a closer to the Front row sound and a incredibly expansive soundstage compared to the Alpha’s. Great cable and would like to hear a second Sigma to conclude my theory. ;)