speaker cables with a warm sound


I was hoping to get some suggestions on speaker cables that have a dark, warm presentation. I am running a pair of NHT VT-1.2's. They are fairly revealing in my system and are punishingly bright with brightly recorded software. My ears are VERY sensitive to high frequencies and can quickly become fatigued with bright material. I have changed out my interconnects to Harmonic Technology Truthlinks because of their warmer sonics. That helped a lot. I think the addition of dark, warm speaker cables will get me where I want to be. Right now I am biwiring with a shotgun array of Music Metre Signature (4 single runs per speaker). The associated amp is a Sonic Frontiers SFS-40 (6922/KT-90), but I have a pair of SFM-160 monoblocks (6922/6550) on the way. Any suggestions would be greatly appreciated.
creeper
Although I've never heard Cardas speaker cables I would consider them based on reputation. I own a pair of Golden Cross interconnects and they are very warm.

I also own a biwired pair of Analysis Plus Oval 9, and yes they are very warm too. They have the added bonus of sounding much fuller than most silver cables.
Cardas.My buddy thought his Krell too bright and they were just the trick.Not for everyone and not as detailed as others but very lush.
Here are the other sources in my system: Rega Planet CD via truth-links to a Continuum Audio Window pre (built by Coda/Innersound) via truth-links to the SFS-40. I don't think it's the Window, I can't identify any sonic signature to it other than "neutral". Ears more trained than mine will call the Planet digitally harsh, but I find it to sound very dithered and somewhat analog-ish. Great suggestions everyone, thanks so much for posting.
I don't think it is the Rega either, maybe the size of the room??? I read the whole thread but I forgot, did you mention the speakers? Could just be synergistic combination that doesn't want to work.
Hello Kt 88. My system is totally different now. Love what I'm hearing. Still running the Planet and a Heybrook TT2 table, a DIY passive pre and a pair of VAC PA160 mkII's, through Mirage MRM-1 Reference Monitors. Still running Truthlinks, switched to a pair of Transparent Super Bicable XL's. I'm now listening in a nearfield position and it's soundstage city. From your user name, I'm guessing you prefer the sound of kt-88's. I'm in the same boat. My VAC's can run several different output valves, but the kt-88's are my favorites so far. I've tried el-34's, 6550's and kt-90's. None of them did it for me. Later this year I might try some 6L6's. They are inexpensive, as they are typically used in musical instrument amps. I'm running Golden Dragon kt-88's, but want to try the JJ Tesla kt-88's. All in good time.