Best long low noise RCA cables


I have a 20 foot run between my preamp and 300b push pull amps. Using Blue Jean cables. If I simply lift them, or move them in the air, noise goes up or goes down etc.

Without spending ridiculous amounts of cash, I am looking for less noisy cables. Thank you for ideas.
invstbiker
@ wolf _garcia,For long runs The nordost odin is out of Gas!,so smartass ,What did you mean by best summer tire in the snow,If you think you can come up with something better and can prove it by all means do so!
I use 5 meters of Purist Audio venustas, works as good as a 1 meter in my rig...your preamp gas more to do with long runs than cables IMHO
What I mean should be obvious as I stated earlier that NO unbalanced single ended cable should be used for long signal runs...it's wrong, noisy, tawdry, and untoward, and I shall not support this sort of misbehavior. I insist that all cease this cable misuse immediately! It gripes my bottom, and my analogy regarding "summer tires in the snow" was precisely appropriate. Harumph! Beyond that, I don't really care.