Looking for RCA cables from preamp to amp?

Call Jason at the Cable Co

I suggest finding the best OCC cable that fits your budget. 

All good suggestions here, Audioquest king Cobra from Music Direct is probably the best budget IC I’ve found. They run these on sale and have specials all the time. Good luck.  

Blue Jeans cables or even what you can find at your local big box store are fine since cables don't make any difference except to your bank account.

I agree with zlone, OCC single crystal is the best wire for audio far superior to anything OFC at any price, harmonic technology, acoustic zen and neotech are some of the more affordable ones. just so you know Neotech makes cables for harmonic Tech and acoustics zen and pretty much all the other companies that are using OCC signal crystal.