Glenn makes an excellent point. The Silver Streak is a very transparent cable. What you heard was a brightness elsewhere in your system. Now you are hunting for an interconnect that will deaden your highs(act as a tone control). Find some used Audioquest Emeralds, and I'll bet you'll be happy.
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!