Let's talk about Silver...

Of course cable choice is both personal taste and system defendant.  My main cable, a 4-meter run from my linestage to my amp is Audio Note Sogon (pure silver litz).  My speaker wire is Sogon as well.  I am considering Sogon or some cheaper Audio Note wiring for the internal wiring of my speaker.  The alternative is some really old Western Electric wire.  

Biggest effect will be in simple tube equipment like Audio Note.

I liked it for headphone cables but not used it in speaker systems

@sls883 where did you order the Graham Slee CuSat50 interconnects from?

@ghdprentice 

My experience is that low cost silver interconnects tend to be harsh and bright

and @grannyring 

Silver on AC plugs always sounded a tad thin and tipped up. Silver hook up wire in my builds always sounded a tad thin with less body than I care for and very detailed.

This was my findings exactly.  I moved to all copper cables and enjoyed fuller range and less etchy highs.  For me it was eventually Kubala Sosna.  But I think there is silver in my Shunyata  Denali 6000v2 and the 20 amp Shunyata Omega XC v2 20a power cable, which add sparkle and life to my second system. So probably well executed, silver is ok; yet I stick by my all copper wires elsewhere and no more cable merry go round for me!