SummerTime and Amp Heat

Heat is the enemy of electronics. "Sounds" like you are on the right track.

I have never do anything to cool my stuff any extra in summer. I like it warm, and use air conditioning to lower the temp only to 90 degrees. (Winter I keep the apt at 82 degrees) My old Forte' 4a ran in class "A", very hot, but after 18 years of just leaving it on mostly 24/7 i sold it.
No problem.
I 'hear' all the stuff about "Oh you wear it out, or heat is the great ememy" well, in 45 years of owning stereo stuff i have NEVER had an issue with anything breaking, and i leave stuff on all the time...
So if you feel it makes you happy turning a fan on it, fine. No problem.

So there you have it, either cool it or don't, another definitive answer from Audiogon Forum. Out of respect for Elizabeth's generally insightful logic, empirical and apparently Florida tested, I realize how colloquial I might have been and so, have to ask why, "It seems each summer I need to do this."? Have you experienced a thermal shutdown?

I live in the Sonoran desert of Arizona. True, the house is air conditioned, but I have it set to 79 degress. Never has there been a problem.

Well the topic IS about heat AND not leaving things on 24/7 - BUT i did have CD player serviced not too long ago for a new laser, and the repair guy commented that the power supply was showing signs of getting old and some of the caps were starting to deform from overuse. He advise that I unplug when not in use. I guess a sharp repair person can tell these things.