Louis1-
You seem to be ignoring the DNA-500 - not sure why. 500W into 8 ohms, 800w into 4 ohms. The VR4's will be singing like you've never heard them before. The 500 drove my VR7se's incredibly easily - could have broken windows, eardrums, etc. w/o a sweat. I'm not a dealer, nor do I work for SMc, but the DNA-500 really should be on your short list. You can get one used for under $5K and its 1 of the best values in higher-end audio.