Looking for RCA cables from preamp to amp?

On the cheap Kimber PBJ used to be a top choice, but that was years ago.

DeKay

These are not fancy, just quality. They sounds just fine. Tried a few different cables on my systems, and these sounded just as good as some much more expensive cables. 

https://www.bluejeanscable.com/index.htm

Kind of think most cables in the $50-200 range are mostly the same, you got to spend serious money to really hear the difference. For me, these have been the highest quality for the price. 

Ditto Blue Jeans cables. Read their articles, good info on how and why cables do matter, make a difference sometimes, and yet you don’t need to spend thousands. Their products are designed well, made well, and inexpensive relative to $$$ “audio specialty cables.” 

Look up "Prosper Cables" on Etsy. Custom made.

Since this is for home theater use or movies you don’t have to get expensive ones, just good quality budget interconnects would do just fine.