I have an enclosed cabinet about 4 feet high with the following units from bottom to top:
Sony Juke box for cds and dvds
Denon AVR-687 Receiver 75 watts per channel)
Sony STR GX5es (an old receiver 75 watts per channel) now used to drive 2 sets of remote speakers
DVR from DirecTV
All this was set up by a professional installer ... but it has not worked and I'm not getting any help from them and have turned to AVS forums for help.
The Sony receiver kept tripping off and the red light would flash. I came to realize (after reading the AVS forums) the problem was overheating. The DVR was resting without any significant space on the vents on the top of the Sony.
I have placed plastic tubes as spacers about 1.5 inches high. It is a temporary solution which seems to work.
I also keep the cabinet doors open; they are solid wood and the inside of the cabinet is very warm.
Now, how should this be set up? What should my permanent solution be? I want to create space and ventilation between each of the units and I may need to ventilate the cabinet.
I like having everything in one stack; I have it all on a lazy susan and can pivot the entire stack around to work on wiring. But I need to create space between the units.
As for ventilating the cabinets: Do I need a fan to pull air out of the cabinet?
perhaps holes on the top of the cabinet to let the heat escape passively?
I am open to suggestions.