I started my system with Verbatim 3" copper ribbon cables - all around great cable but no longer made. I then tried Nordost as they seem to get so many rave reviews, especially in the press. First off were Heimdal, total garbage, super thin and badly tipped to brittle highs, grainy. Next was Analysis Plus Oval 9 - total opposite and full of body with more and better bass than I'd had with the Verbatims. Then a pair of Nordost Frey 2, better than the Hiemdal but still horribly unbalanced and thin. After that I went back to AP and found some Solo Crystal 8's. Meanwhile, my buddy had lent me Transparent Super, Tara Labs RFC something and a few others, non came close to the AP 8's. The one thing that stood out was the huge differences the speaker cables were making. I'm convinced there's a lot more to come and looking forward to trying some Crystal Cable and Siltech, though for value I'm strongly considering the Cerious Tech Graphene Extreme and the new Lessloss C-Mark. Whichever works will dictate my power cable. urrently I'm using Wireworld Silver Electra 7 and have compared it to $1200 Shunyata Z-tron Sigma HC which it handily beat. The PS Audio 12 was worse again! Both sounded like a thick veil in comparison. So did the Niagra 1000 and Isotek power conditioners. I've gone back to straight into the wall, though I am planning to update to a dedicated 20 amp line with Furutech GTX outlets.
I'd suggest buying used, taking time to try some of those mentioned and see what appeals.