I agree with the above posters, make sure that you are buying authentic cables, lots of fakes out there.
That being said, I'd also send another warning, this one about the Nordost brightness that you noted. This does not seem to be something that one gets used to, at least not in my case. I have found the Nordost sound to be alluring, all of that speed and resolution can be quite enticing. However, twice I have gone down that path, and in both cases I eventually found myself listening less and less often, for shorter and shorter periods of time, as listening fatigue would set in earlier and earlier. Too much information is not always a good thing.
So while I still enjoy Nordost cables in demo situations, I do avoid buying them now. I want my home system to be a bit more relaxing, and easy to listen to.
Of your choices, the Harmonic Technology would probably be my choice, as the Cardas tends to go too far in the opposite direction of the Nordost, and is too warm and slow for my tastes. Of course you pays your money, you makes your choices.
That being said, I'd also send another warning, this one about the Nordost brightness that you noted. This does not seem to be something that one gets used to, at least not in my case. I have found the Nordost sound to be alluring, all of that speed and resolution can be quite enticing. However, twice I have gone down that path, and in both cases I eventually found myself listening less and less often, for shorter and shorter periods of time, as listening fatigue would set in earlier and earlier. Too much information is not always a good thing.
So while I still enjoy Nordost cables in demo situations, I do avoid buying them now. I want my home system to be a bit more relaxing, and easy to listen to.
Of your choices, the Harmonic Technology would probably be my choice, as the Cardas tends to go too far in the opposite direction of the Nordost, and is too warm and slow for my tastes. Of course you pays your money, you makes your choices.