I've had the 7075 for a few weeks now and I think it supplies all the power I need. I don't have a particularly large listening area and have high sensitivity speakers (98 for the mains and 95 for the center), which of course helps. I usually don't have to turn the volume level on the 990 up past -20 to get a listening level that draws complaints from anyone else in the house. I'm just not sure what an extra 50 watts and $300 would add to my enjoyment of the system. Unless I move into a larger room and get speakers with low sensitivity numbers, I'm more than satisfied with the 7075.