Class A amplifiers


I was watching YouTube reviews on Hifi and one guy said if you like Class A amps you have to accept that every 3 or 4 years you have to send them in to get serviced Becasue the heat inevitably causes issues? Is this true? I have a friend with an older Maek Levinson Class A amp and he was looking to sell,it to me, and am just wondering if Class A amps are like a boat, always costing you more . Anyone?
bear1971
@bigkidz

agree

dick brown’s amps are still among the best... and they have withstood the test of time
I have a glorious Class A Sugden A21SE and it never misses a beat, I contacted Sugden and asked them about having it serviced and he said it’s likely not to need looking at. 
In my opinion class A can’t be bettered. 
As others have mentioned, it depends.

All Class A run warm. Many run hot. Some run so hot that they dry out the electrolytic capacitors.

Solution: don't run them hot, use electrolytic caps only in the power supply, and isolate those caps from the heat sinks. Personally, I run the amplifiers' heat sinks at comfortably warm and the power supply at room temperature in a separate rack in another room. That's a bit extreme - but not as extreme as George!
Went to buy a tube amp and wound up buying an esoteric class a.  Loads of heat and have heard horror stories about having to send it to Japan for service 
The amount of maintenance is overstated for sure but a lot of them do run hot and there can be problems with them due to over heating but a good class a amp can sound great.