I am using DH Labs BL1 series II rca interconnects and to me they will fit your needs, at least you don't have to brake a bank for it. Another option, which I didn't try yet, but been seen by many as real upgrade from BL1, are DH Labs Matrix. Both are silver coated, which gives that clarity you are looking for. Personally, I am going back to pure cooper, but than in USD 500 range, however not sure yet which one.
