You might try synergistic research AC master coupler. They taper off the highs a bit wile still providing an open sound stage. You can find then used here generally ranging from 135-$175.
Hey guys, just got another message from Ramesh. He informed me of a new Canadian company called Virtual Dynamics www.virtualdynamics.ca
Apparently the Basic Power model from them is USD 29.95!!
And sounds like the Cardas Golden.. Anyways, I just called Rick over there and I'm going to get a few to try out.
Will keep you posted