Recommendation for an audiophile speaker cord that is not "bright"?

A friend has loaned me the Nordost Valhalla I and II as well as Nordost Frey 2 cables. They are wonderful speaker cables but do emphasize the "brightness" of my system including my Wilson audio Sahsa 2 speakers.

Any suggestions? Would used Transparent cables provide a richer bottom end? What about Audience Reference?

Any recommendations would be greatly appreciated. - Thank you - Gerry
Since the others are much more expensive, I am going to try the Acoustic Zen first. Thanks!

Audience AU24SX. Don't do anything wrong; clear, natural and balanced. Can't go wrong, and reasonably priced.
I would seriously consider Tomic601’s recommendation.
I owned a set of Transparent cables, and found them rather dull-sound wise, and they cost a small fortune. One that was not recouped when selling them.