Other "silver" spk cables.....

Ohlala, you mean RS Audio by Richard Sachek? FWIW, their cables got an outstanding review on UltraAudio by Mike Silverton.
http://www.ultraaudio.com/equipment/rsaudio_solidsilver_interconnects_speaker.htm

I have a pair of Silver Audio Symphony 48's and really like them. Before that I was listening to Acoustic Zen, and some Cardas speaker cable. I felt the detail when listening with the Silver Audio was superior. A lot of what you hear is going to be about your system and YOUR ears!

I use RS Cables, pre-power, cd-pre. Richard provides a 30 day trial period. Your ears will be your best advice.
Good luck.

Using the RS Audio Cables IC's.
Very nice.
As advertised-smooth, detailed,neutral, transparent.

I would highly recommend an audition of Silversmith speaker cables. Unfortunately the manufacturer may still be away on active military duty.