Lots of views here. I am a firmly midfi guy so take everything I say from that perspective. I use an assortment of wires from Audioquest, Shunyata, DH Labs (good value) The Chord Company, Nanotec (outstanding value), Furutech and some from China - various makers. I am not going to claim that Chinese cables that cost $50 rival $10,000 wires but some sound pretty good and are holding a place in my current system. You must be selective.
I currently assemble most of my power cables. I started out buying Furutech parts at full retail and had some success and some disappointments. I have found some Chinese sourced bulk power cables and connectors that are great, but you have to buy and try to determine which ones from which venders are effective, and which just look pretty.
I use an ATAUDIO interconnect for my subwoofer and like how that sounds.
I have an Audiomeca power cable that is supposedly OCC copper that looks lovely, comes in a nice box, cost a little over a hundred bucks and rivals the sound of power cables I have and have tried costing $500-$800. I am currently using it to power my Swagman Labs SE linear power supply for my analog front end with great satisfaction.
I bought a Xangsane “7N OCC silver plated power cable” for under $100 on a lark and it sounds terrific. My son is currently using it in his Naim/Rega/ATC/REL system side by side with quality Audioquest, Naim, DHLabs and Isotek power cables. Not saying it is an Audioquest Hurricane killer, just saying it is a good value if you can overlook the hideous lime green color and component lifting stiffness.
I bought a Chinese replica of a $3,000 Furutech power cable for $100 and got what I paid for. Looks great, sounds just OK.
I bought some “Valhalla” speaker jumpers from China that are supposedly silver plated OCC to replace the stock metal plates on some Wharfedale Diamond 12.0s in a second system, and WOW, are they good. They cost $45 and are worth every penny. Compared to some other jumpers I’ve tried made from bulk wire and other store bought versions, these phony knock offs are hands down better. It takes a long time to burn them in, but they make the little Wharfedales sound like much more expensive speakers.
Lastly, out of curiosity I bought some $45 interconnects from China that look very much like $19,000 top of the line wires from a certain US vender. I put them in my system and gave them every chance to impress me, and ultimately they didn’t. They weren’t completely awful, but my Nanotec wires with Furutech rhodium plugs sound way better. Those Chinese wires are now gracing my spare cable box.
YMMV
kn