Silver Plated Copper Balanced Cables

Audio Art IC-3 or IC-3 SE's are excellent sounding cables for affordable cables that compete well above their cost.

I did use the AZ Silver Reference. It's a good cable and better than the AZ copper cable which I didn't care for. I don't think it is as transparent as the AQ cable and did seem to add a touch of silvery glow to things the AQ didn't have. With the wrong electronics, it could add a touch of sibilance to things (especially digital playback.)
Honestly, I've found sibilance to be more of an issue with the electronics than the cable itself. For example, I had Kimber KCAG with a Bryston B-60 integrated amp and it had sibilance. I blamed it on the cable but as it turned out, the Bryston's sibilance was just being enhanced by the Kimber. It was really there the whole time.

Silver over copper will tend to sound brighter than either pure silver or pure copper.

Really good silver conductors don't sound bright or siblant. The problem is that there have been bad silver cables, many of which used silver plated copper, that created the bad reputation for silver.

PS Audio Transcendent Silver and DH Labs Revelation are among the best I've heard. More weight and body.

Another vote for Kool Cables all silver FireFly with silver eichmann RCA connectors - a most amazing cable regardless of price!

Jim Ricketts/tmh audio