You should give Synergistic Research Tesla cables a try. Especially if you seek resolution and musicality with holographic soundstaging. I especially like the active models however I just got their Au79 and Magnetic Tricon IC's to compair in my office system.
First in is the Tricon IC. Right out of the box it's impressive and if it opens up and becomes smoother I've got a winner. So far it reminds me of Nordost cables I've had in the past but with more bass and a much richer mid-range and a more open sound stage.
Neither of these IC's are Active BTW.