I`m no expert here guys, but, FWIW. I can tell you of experiments I did with RG mini 8 & RG 8/213 fully copper coax cable for speaker wire in the mid eighties with a hand full of audio friends.. I won`t go into my concept of why it might be a improvement, as that will bring out engineers, and want to be engineers on this site that will want to argue the concept.. And I felt from my RF concepts learning prior that I wonder how the switch out from reg. 14~16 ga. lamp/zip cord would sound if replaced with first RG mini 8 coax "fully stripped" at each end and both the exposed shield and center conductor were twisted together and then had solder flowed over the combined center and shield at each end. X 2 .. One coax length prepared this way, and then another duplicated for the other connection of the speaker(one for the plus connection, and one coax prepared the same way for the negative connection to each speaker) Then make out a duplicate pair of coax cables for the other speaker.. Well, all test subject friends were very impressed with the tightness of the bass & increased clarity of mids. and highs.. I didn`t give them any preconceived notions that these strange semi fat concept wires were going to make their stereos sound like Mark Lenvinson`s or any other high dollar stereo, but since I made them free for my hand full of test subject friends, they had nothing to lose, by swapping my coax speaker concept cables with their original decent ga. ones.. Well the reports started coming in and they were most positive, and then their friends heard them & begged me to build them some too.. So I said here is what you need to buy from Rat Shack.. Go buy what you need and I`ll make them up for you for free.. Actually some of the original test subject friends let me talk them into, where practical, trying out the much larger diameter RG 8 stranded copper center conductor coax prepared the same way, with again for the few bold enough to run two small size garden hose sized coax cables to each of their speakers, at their expense to see if there would be an improvement.. With again, very positive sonic results.. All done at a fraction of popular Monster Cable type speaker cable(my only esoteric speaker cable awareness), at that time.. Try it, or not.. Hear it, or not.. It`s all the same to me, as I never read about doing that experiment/concept(pre internet) in the mid eighties Those of you who are bold enough to try it out just might be surprised with what you`ll hear.. If you do try and like, no credit need be given me.. After all it was just a concept experiment over 40 years ago and I didn`t want to patent it.. Possible elevated income tax bracket concerns !! Take care and always enjoy the music Gentlemen & Ladies, if present.. Regards, OKB