jond - I have found that removing power conditioners can improve sound in some cases. For example, in my setup, the Sanders Magtech amp sounds better without power conditioning. (I tried it with an Equi=Tech, Transparent, and Shunyata power products, and the bass didn't seem as deep.)
Here is some info about the Galibier Wind River speaker cables:
https://galibierdesign.com/products/cables/cables-speaker/
https://galibierdesign.com/wind-river-dev/