Warm Sounding Cable


I am looking for a cable that is warm sounding.  I don't want bright or detailed, just warm.  I want to change the cable from my Sony HAP-Z1ES Music Server to my Rogue RP-5 Tube Preamp.  I am finding the sound to be a little bright.  Looking for a cable new or used in the 200-300.00 price range.
stereo5
I am a Purist Audio fan and have Neptune Luminist. The least expensive Purist fluid cable is $600 Poseidon, and you won't find it used. Nor will you find older Purist fluid cables. Be careful with Ferox unless it's Dominus, it changes the balance of the cable.
Cable Co. is a great suggestion and has always worked for me.  Some IC's I have found on the warm side are:

Kimber 1011
Kimber 1016
Kubala-Sosna Fascination
MIT Older 330 series

I dropped an Auditorium 23 interconnect into my system and found it to sound very organic and quite lovely,  warm but in a natural way. However looking at your system I’m wondering is the brightness you’re hearing just with the Sony? I see you have an Esoteric disc spinner as well.

Hi @inna .  I hope you don't me resurrecting an old thread.  I considering the Poseidon and the Neptune to warm up my system a little.  Have you tried both?