warmest speaker cables you've heard?

You want cables that are neutral.

Why? Is there some kind of "audiophile" rule that we need to comply by?

If you have overly bright speakers then maybe buy a warmer sounding speaker such as a British made speaker, wharfedale, tannoy, spendor, harbeth, etc..

Ok, so rather than swapping out cables to solve a possible brightness issue that would cost him $500 - $1,000 to change, you suggest swapping out speakers that may cost $1,000 - $10,000 or even more to change?

Not an economically prudent approach.

I was using Monster Power Line 3 cables.  But I noticed a big difference when I auditioned Vampire Wire continuous cast copper.  I ran them between to KEF Reference 104.2 speakers and an Onkyo Integra M 504 amp. 

I guess the idea is they can stretch the copper crystals to be up to 20+ feet long so that on a short run, you are never going through more than two copper crystals at a time.  

When friends came over I would do a blind A/B/A/B type demonstration and each person could tell a difference and preferred the Vampire Wire to the Monster Power Line 3 cables. 

Even  people who did not care much about Hi-Fi preferred the sound with the Vampire Wire cables.  

I don't know how these would compare to the cables you mentioned but, for me they definitely warmed up the sound.  I had tighter bass and smoother midrange and treble.  

My question is why would you want "warm" speaker cables? Don't you want accuracy? If you want warm sound, just turn the treble tone control down or use an EQ.

@docroasty… ‘I think, if you get the chance, you really have to try the Raal SR1a ribbon headphones for yourself to understand what I’m trying to achieve.”

Interesting you bring up headphone systems. Really good headphones simply reflect the nature of the signal which they are feed. Perhaps I can say something helpful. I have Focal Utopia and Sennheiser 820s among others. They take on very different sound depending on the amp and source equipment I attach to them converging to be nearly indistinguishable and absolutely perfect with my Massive Woo WA5 headamp. You can see my systems if you click on my user name.

What equipment are you using to drive your headphones?

Increasingly I am more convinced this is a system component issue. Your system components should sound perfect if the system is well matched and of high quality and Cale’s should simply make them sound more like they already sound.

I see your amp… did you mention your source components and preamp? I think a careful review of components would be worthwhile.

we all want our stereo rigs to sound good to us

how we get there, any of a myriad of ways, is fair game

but some ways are smarter and more practical than others

there is no right or wrong