My .02 worth, in all my near 60 yrs. of experimenting with audio have used about every type of speaker wire that would fit the lugs, even what could be considered welding cables. Never running more than 30' to any speaker probably is the reason for never hearing any noticeable difference in sound no matter what wired things together. All our wire is no less than 16 gauge but monster wire non the less,just because it makes me feel better.