Replacing the speakers link with silver wire

Furutech PC-OCC wire from parts connection. Use it as speaker wire too.

Actually, it’s Neotech.
NEOTECH - Solid Core Copper, Teflon Jacket 
99.9999% UP-OCC
http://www.partsconnexion.com/wire_hookup_neotech_cu_tef_sc.html

Silver sounds horrible.  Bright, distorted and shrill high frequency. 

@bpoletti That is NOT my experience. But, then I don’t know what wire/cables you used with which gear. I have experience with Homegrown Audio’s silver in Litz configuration on Parasound, Rogue and Ayon driving various speakers including Avalon: These silver cables do NOT sound anything like your "Bright, distorted and shrill high frequency". Once again, I guess YMMV. I’m not arguing with your assessment, I am just stating my experience does not agree.

I am very curious to try Tempo silver cables from http://www.tempoelectric.com/cables.htm (and I absolutely lust after his phono stage at http://www.tempoelectric.com/phono.htm )

One of the real benefits of using silver is that when it oxidizes, it still sounds the same — unlike copper. Also, keep in mind that you do NOT want to willy nilly mix metals in the signal path, for instance a silver cable connected to copper binding posts is not optimal if you believe the studies published over several decades.