Softest/Warmest digital coaxial cables?

What's your budget? And which components are you using?

harshness and unnatural sharpness in tone from the digital source often a sign of jitter or other electrical noise in the signal transfer

'warmer' cables may just be a band aid for the underlying problem

To give you a little background of who I am, I've been making music for close to 8 years now (mostly as a recording engineer), and I've had the pleasure to try a lot of expensive gear, as well as cables along the years. So I know cables definitely sound different, I don't want to enter this debate because it is already settled in my mind, but as far as digital cables go, I admit I don't have much experience that's why I was hoping some people in the audiophile sphere could chime in and help me.

I'm producing mainly 50s/60s type of music, which are very slow/warm/dense/musical/organic and often in mono and that's why I'm interested in cables that are the opposite of silver and clarity, details etc... I'm searching for density, warmth, big soft sound.

As far as my set-up, I would put those cables between JCF 8 audio converters and my Appolo UAD sound car when I record.