I will add my vote for the Cardas too. In my system, the inexpensive Microtwin was warm, but overly bloated in the bass and had a vague presentation overall. However, the Golden Cross is working wonderfully in my system. It helped take off much of the edge in my setup, without sacrificing detail.
For half the price, the Harmonic Technology Pro Silway II worked pretty well too. Close to, but not quite as warm as the Golden Cross though.
I hope that helps. Good luck!