warmest speaker cables you've heard?

@docroasty, Audioman58 beat me to it. Duelund tinned copper in a oiled cotton jacket, can be bought by the meter https://www.partsconnexion.com/

Hello,
Stay away from Silver coated copper. Also, try a thicker gauge of wire. You might want to call Straightwire. You can tell them you whole system and they will let you know how to fix your sound. Personally I don’t agree with fixing sound. You should go back to basics. What does not match in your system. Or is this the sound you get from those components. When you add an item it should compliment the basics or you need to get rid of that component. I just demoed a $14k DAC that did not sound as good as it costs in my system. The key is I am also not buying it. I understand sometimes we love certain components so we make sacrifices. https://www.straightwire.com/mobile/?url=https%3A%2F%2Fwww.straightwire.com%2FI have talked to them a few times and they know their stuff. Add a thicker gauge power cable to your components. It really works. If you live near the Chicagoland area and want to try some things to help out your system or want to add to your existing system this company lets you try before you buy. https://holmaudio.com/Also, Try a different power conditioner. The Puritan PSM156 can help with this too. Try the power cable. It works. Stick to 100% copper. 

@audioman58 @rushfan71 thanks for the heads up on the deulund. I was not aware of that brand until you posted. I have purchased from partsconnexion before, but mostly tubes and cardas cables.

@hshifi yes the puritan 156 is on my radar. I'm currently using AQ niagara1200. 

essentially, my system is pretty much setup just the way i want it. i have several headphones (utopia, susvara, abyss 1266) which all sound really good on the system. I would post my whole system here, but it is rather convoluted, and really, besides the point; I am only adding the Raal to the lineup just for variety and a different flavour, and as the Raal is already a confirmed buy, all that is left is to choose a speaker cable.

By what mechanism can a speaker cable boost or attenuate signals selectively within specific frequency bands?

I suppose that in a particular room, music might sound very subtly warmer or brighter when you introduce a slight change in gain solely due to a change in cable length or gauge. Even so, couldn't one manage those effects more effectively via DSP, tone controls, room treatments, speaker placement, etc.?

Don't know how DIY you are, but this might be of interest:  https://www.gr-research.com/cables.html