Silver plated copper

crwindy:
Resistance does not affect the speed of propagation. No distortion is introduced.

dweller:
Skin effect is frequency dependent and negligible at audio frequencies.

All hook up wire is going to distort the signal in some way inevitably.All we can do is find wire that presents distortion we find pleasing to our ears.I don't care for silver plated copper either but other folks love it.I remember seeing a chart somewhere that listed the speed that various metals passed a signal.Silver was fastest,copper a very close second.I don't remember how gold and the other metals fared.

The primary original reason to silver plate copper wire was corrosion resistance. Military, particularly aviation like silver plated copper..Plenty of Mil Spec Silver plated Teflon insulation wire for sale on eBay.                           
I have purchased plenty of it.
No special reason in audio use, particularly up against long grain OFC single crystal 99.999 etc copper.        
Silver plated copper is better for digital, computer and video in general.

Now you've got me curious Elizabeth.Silver and copper both oxidize quickly so I wanted to understand how the silver could actually protect the copper....Anyway I found some info about it in case anyone is interestedhttps://www.finishing.com/461/41.shtml

That link was about as clear as mud. No offense to you personally.