McIntosh manual recommends 12 inch of air space above the amp(tube) for adequate ventilation. My rack only allows about 8 inch of space above it. Does it sound like a problem that I should address with a cooling fan perphaps?
In addition to the 8 inches you have above the unit, is there open space in front of and behind the unit? (Is the unit on a shelf in a rack or inside a cabinet with a back and/or a door?
I would say monitor the shelf above and see if it is getting too hot. If not you probably have adequate ventilation. My MC352 is in a smaller space than recommended and it never gets too hot to touch.
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