Recenty Synergistic research brought out some cable risers.
https://www.synergisticresearch.com/accessories/cable-risers/ The audio press said they made one of the biggest differences when taken out of the system, then re installed back in. Does anyone have first hand experience with these ?
That being said, they seem like quite a bit of money for what you get, however if they work at improving the sound it would be worth it. I do use Synergistic products which have made a definite improvement in sound but am quite skeptical on this product.