I'm using KEF Model 4 for the front main, a KEF 200C for the center, KEF TDM34DS dipole ceiling mounted for the rear, all powered by Proceed HPA 2 and HPA 3, with great success. For the LFE, I'm using the Velodyne HGS-18 Sub, which really rocks the house. I have found this combination to be very magical. The front end is a Sony 7700, McIntosh Pre, and Meridian Processor.