Hi, I have very little time to get some info from you helpful folk. I know from a previous thread that the Pioneer 49TX receiver puts out a good deal of heat(I will be receiving the 49TX soon to use in my new home theater). I'm having an A/V rack custom built and it is currently in the design stage. Because the rack is approx. 50" tall, holding 7 pieces of gear, I currently have a fixed shelf sited midway up the unit for the very heavy 49TX. The shelf for the next component above the 49TX is only about 1 1/2" above the 49TX. The back of the cabinet is entirely ventilated - using wire mesh. ONE side of the cabinet will have ventilation slots as well. My question: is this enough to cope with the heat ventilation needs of the 49TX? Or do I absolutely have to incorporate a fan somewhere? Or move the 49TX to the top shelf and put vent slots on the top of the cabinet (which makes me a little nervous about putting the heaviest unit at the top shelf). (I do not wish to put a fan on the top of the cabinet). Any ideas before I get this expensive thing built? Thanks very much. Rich H.