Hmm, I purchased some Monster branded 14 gauge speaker wire back in 1986 which is still in use for all channels of my 5.1 system. No issues, wire is terminated in banana plugs. I purchased the Monster branded wire, since, in my market, there were no alternative brands available which appeared to be better values. As a sidebar, I got out my 64 year old train set to put around the Christmas Tree and noticed as I plugged in the transformer the wire insulation was so brittle it began t crumble in my hand. Of course, since this lamp cord is not low voltage I thought it prudent to solder some fresh lamp cord to the transformer to preclude burning down my house this Christmas.