I agree with one of the earlier posts, whatever sounds best in your particular configuration is what's best for you. I've had a pathological number of PC's in and out of my system, including FIM Gold, Synergistic Research, Shunyata's, PS Audio and a few others, and the best, that is to say the most accurate I've heard are TG Audio's designed by Bob Crump. Relatively inexpensive, especially compared to Cobras and SR Designers Ref Sq.- about $300 a cord- and in my system THE most accurate and musical sounding I've heard. The above posts notwithstanding, and all the posts re whether one can actually hear a difference in PC's or not, I do hear a difference, and the TG's are the best I've heard. Now whether this is due to actual differences in the cords or my equivical sanity is another issue altogether. Whatever, it works for me.