thanks, I will research these recs. One of the companies that sells fans fans for cabinets says you should bring in cool air from the front of the unit and have it blow out the back. Which I can't really practically do, since its a recessed in wall cabinet, so in the back is the actual wall. I think my only choice is to put the fan behind the receiver and have it blow air forward across the receiver from back to front and toward the listener (open room). Technically that is just blowing air from dead space behind the unit forward into the open room. It should still help a bit? no?