I too have a Macro Reference. Been using it at least ten years. When I switched to a biamped system it went on the bottom. Lots of juice. When it was the only amp in the system I enjoyed it greatly. Now that I have added another large solid state amp (X-350) its clear the Crown doesn't have quite the finesse. Regardless, I think its a great amp. I've had people from both Sound Lab and Wisdom Audio tell me they have one and use it as part of their development program.