not silver but gold alloy.
Ive found gold alloy to be a wonderful sounding conductor. Its what I use for my personal portable set up.
depending on the gold alloy wire you use, and connectors, I suppose the sound can vary.
what I noticed with gold alloy, were nice details yet not sibilant, very tube like signatures and wonderfully musical.
Ive found that high purity silver has a very harsh sibilant tone, with little bass response and thin sounding. it was like the equivelant of Grado bowl pads of cables.
some may argue about it being less conductive, but I dont really care, my ears tell me that it sounds better then anything else Ive listened to

at least for my portable set up, its just magical. It sounds great to me and thats all that matters. I dont think anyone has ever tried to apply gold alloy to mini cables except me

.
if anyone ever decides to DIY a gold alloy mini, Id love to hear your thoughts.
but as my opinion sits.. its the best sounding conductor Ive used on my portable rig.