Interconnect recomendations, ~$500 new or used, RCA...

Check out the discount section over at darwincables.com. 

I've been using AudioNote UK's silver series interconnects and am quite happy with them. They run in your price range.

If you can find Siltech cables used, another I really like (I use their silver/gold annealed speaker cables).

 NVA (Nene valley audio) out of UK make some very nice very low capacitance wires that are quite good and very reasonably priced. 

 

I've been steadily moving up the Audioquest line of interconnects. The starkest difference (to my ears) was going from Water to Earth. I found a good place to stop with the Earth cables. I'm more than satisfied with their performance for the $$. You can usually find them used for a reasonable price. Hope this helps.

Here's what I bought when I needed new IC's: Audioquest Silver Extreme's. HCM had them on sale for $100 a pair. List price was $500/pr.Can't beat that! So I got 5 pairs for $500. Happiness!

In my specified price range I'm researching Harmonic Technology, Analysis Plus, Siltech, Nordost, Synergistic Research, Cerious, Triode Wire Labs and Black Cat...