Cool it!

Have not had a fan which is very bad for 40 years.Good luck though!!

Ebm,
I understand.... I just aquired a class A, Krell Amp. The previous owner had it a ac cooled ventilation set up. I'm aware these types of amps create substantial amount of heat. My room is temperature controlled but with the summer months  I  wanted to properly assistance ventilation.. I'm aware that high heat and poor ventilation shortens the life of stero amplifications.

Thank You for your thoughts! 
And stay safe!

So long as your ambient room temperature remains comfortable (~ 74F) the amp will be fine. 

Not sure which Krell you got, some of them had internal fans.  Make sure it is operating.  Those are cheap to clean and replace.

Best,
E

One time at a party the heat sink fins were getting hot to the touch. Like you did not want to leave your hand on there hot. Well this was winter so we put some snow in a plastic bag in between the heat sinks. 

Another time at a party suddenly no music. When I go to investigate there's a bunch of guys scratching their heads, trying to reassure the poor owner, nobody really knowing what to do. I said it got hot, protective relay, put it out on the deck and in ten minutes the winter air will have cooled it down and we can party on, Garth. 

Which we did. So scientifically speaking its best to do your hard rocking amplifier over-heating in the winter time.