Looking for RCA cables from preamp to amp?

I have been very happy with cables from Snake Oil Audio (I know haha). I believe they are one of the OEM cable makers for Schiit. 

Please please build you own using Ramm DIY OCC cable and plugs, very cheap and sounds very good.  The Ramm RCA connectors sound better than top of the line Furutech ones to me!  It's very cheap and no fear of missing out.

Look at the Wireworld line excellent parts quality as well as design -6-9s Copper 

their own patented dielectric ,and geometries,many companies use brass over gold or silver connectors 

a cheap way of robbing your system. Copper has 3 x less resistance 3 x more conductivity Wireworld use only silver overCopper no bottlenecks that way .

their Equinox would be perfect , Perrotta Consultants Anthony gives great service and deals especially if buying more then 1 pair.

I recently discovered the Periapt line of cables and have traded out my headphone cable along with a couple of others for this company’s offerings. I find them extremely well built and a good value. They sound great to my ear. Give them consideration.

Replace Audio Envy (-1) with AntiCable (+1). 

The Audio Envy were very dry and thin sounding.  I tried to give them away, but no takers. 

The AntiCable are simple, clear and inexpensive. ($50 to $500 per pair, depending on the materials and length / Award Winning Analog RCA Interconnects and Interconnect Systems (anticables.com).  There are others to try, but these have worked for me.

I am not in the audio business and have no affiliation with either company.  

Good luck