I just set up my new receiver, a Denon 2807, in one of those home theater tables with glass shelves, open on all sides. I bought it before I purchased the receiver. The 2807 is fairly large, and after fiddling with the shelves, the most I could eek out is about 3" headroom above the receiver. The Denon manual is hopeless. It has a caution saying: "For best heat dispersal, do not install this unit in a confined space such as a bookcase or similar enclosure." It even provides a little diagram with arrows above and to the side of the receiver. But where you would expect to see numbers representing the minimum space requirements, it has asterisks! Send that technical writer back to school! It seems hot. The glass shelf above it is warm. So I stuck a digital thermometer between the glass and the receiver (above the receiver where the heat vents are) and got a reading of 111 degrees. Do I have a problem? Any thoughts on remediation other than a new stand or a new receiver? I have other constraints in that room ... like a knee wall with a sloped ceiling, so I really can't have a table much higher than the one I purchased.