I just purchased a new Denon x4200w and, while I am completely satisfied with it, I do notice that it runs very warm. I don't have the recommended 5 inches+ of clearance up top. Instead, I have about 4 inches of clearance above it and complete clearance on the sides, front, and back. Still, it is noticeably, radiantly, warm to the touch, but not hot. I've also had it running for hours and have had no problems with it. A friend of mine said that "higher end" receivers all run hot. Is that true? I have had a Pioneer 834 and 1024 and an Aventage A60 and, while they did get a bit warm to the touch, they were all cooler than this Denon.
My solution is potentially to place a Vornado floor fan to the side of my rack and run it on low, which does remove a lot of heat. Is this necessary? Do I have a defective unit? Am I simply getting paranoid?
Thanks for your advice.