Have you tried the Blue Heaven interconnects? I would think that they would work well. Others that I have used and like include Pure Silver Sound and Audio Magic. The exact models would depend upon how much you want to spend.
I'm using Blue Heavens (pre-amp) and HomeGrown silver (dac-pre) cables with a CJ/ProAc 2.5 system and have had great luck with them. Both cables are relatively neutral and seem to match well with the overall warmth of the system.
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