The new Morrow Audio MA3 Reference cables are unbelievably good for the money. The balanced cables are at or near your price range depending on your timing and the level of discount offered by the manufacturer at the time.
Good Performance/ Value Oriented Balanced IC's
I have a Cambridge Azure 840C player connected to a Krell 400xi. I was using Kimber Silver Streak single ended, but found them too bright. I talked to a Krell tech, who suggested microphone cable, and I obtained a pair for $25. The cable just did not cut it, (low res). I would be interested in learning about balances IC's that some have found outperformed their price. I have a very small budget here of only $300. Suggestions would be most welcomed, please. Thanks!