RCA interconnect recommendation

The rule of thumb is 10 - 15% of total budget. But depends on your components. One thing I learned early on, with modest components, be careful of too transparent interconnects. My system didn't sound better with truly neutral interconnects until my components were at the $5K level. Before that slightly warm interconnects that would cover up some of the deficiencies in the components was helpful. My first jump into high end cables, Straight Wire... was a disaster. Highly reviewed cables, sounded terrible. Thirty years latter I pulled them out... they are simply fantastic... with the components I had then about $7K each... when you get to a certain level, you want transparency, but before that you want some protection. 

Look at Cardas and Wire World, other brands made of copper... maybe silver coated copper. Stay away from all silver. 

Thanks but I'm confused.
some of my components are not over 5k but many are at or close and above.
Is this just an arbitrary rule you apply or does it come from somewhere important? I thank you for your answer but I'd like some thing a bit more directly related to my gear and objective. But thanks

With Rogue gear(ST100 and RP1 or RP5) I had excellent results using Acoustic Zen Matrix Reference 2 and Absolute Copper.

With the integrated I’d probably go with AZ Silver Reference MkII between the phono and Chronus and Matrix MkII for the digital front end.

Audience is also a good match. Older AU24 interconnects should be within your budget. 
I would steer away ffom Cardas unless you’re looking to round the highs.