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

I can second the Audience recommendation in terms of tonal balance. However I’m not sure it will be a good match for Wilsons. Audience cables are fairly light gauge and Wilson speakers tend to be difficult (low impedance) loads and current hungry. I feel like I always see them with massive amps and garden hose cables. Something like Au24 SX may not let the speaker “breath” enough, but I’m sure Wilson owners and others can state with more certainty.

I like Cardas Clear and I think it’s one of their better cables, but as others have said it is not going to be as warm and sweet as the traditional Cardas sound. To me that’s a good thing because I find most Cardas to be a little rolled off and dull. Eg golden reference may sweeten things but I don’t think I’d be willing to sacrifice the life of the sound to get the tonal balance right.

One that I think might be worth trying is Crystal Cable. I’ve heard them in two very different systems and I was impressed with how detailed, open and natural both were, with not a hint of glare or brightness. One was with Audiovector SR6 speakers and a Devialet amp and it was super smooth and present. I don’t recall the model of cable but I believe it had a gold silver alloy. It did not strike me as bright as silver is wont to be - perhaps the gold is the trick. 
BTW, not surprised the Valhallas are burning your ears off. :) They can do great things in just the right system but seem super critical of any upper frequency energy.

213runnin654 posts12-19-2019 4:50pmAnd that does not a consensus make. I feel like you're going to insist that it does, so...

Wildly different price points, wildly different design types and brands and... my post was merely a light hearted observation.

I felt your post as lighthearted. And I hope mine was also, as a missing the point observation, as many seem to at times.
Cheers

...just putting in my 2 cents worth: 

I am a big proponent of simple twisted wires as speaker cables. I don't have mega-bucks equipment or speakers - BUT JUST FOR THE FUN OF IT: go down to your local electrical lighting/supply place and get lengths ( distance you need for speaker cable + 2') of 12g solid core copper wire, vinyl-jacketed. Take two lengths and twist them together. Leave ends stripped bare and fasten into place (if bi-wiring, obviously do two sets per speaker). Run your system for a good 300 hours non-stop - and for under $20 you may be presently surprised...