McIntosh (MC601) amplifier overheating problem

It sounds to me that your friends amplifier's are not being properly repaired these amplifiers are legendary for they're reliability you should suggest to your friend that he seek, identify and secure the services of a factory authorizied technician to examine his amplifiers. 

It also should not cost $400 to replace each transistor that is ridiculous and an indication to all that the service center is not what it may appear to your friend to be. 

aball"They were repaired at a factory service center. I know exactly what the problem is."

It is evident that you are not sure of what the problem is and that is why you are posting hear I am sorry I did not mean to embarass you if the amplifier’s were serviced by a factory authorized service center then they provided a waranty along with the service you should return the amplifier’s to them for the additional service that they require or otherwise see another authorized service center because this on that you used is clearly not capable of properly servicing these amplifier’s.

aball"McIntosh has gone silent in my attempts to get them to help!"

I find this very hard to believe something does not sound right here not only does McIntosh make some the finest, best sounding and most reliable amplifiers in the world but they also provide first class service and attention through there many many dealers and distributors in their vast distribution network so you're experience hear tells me that you are not providing all of the information regarding your circumstances perhaps these amplifiers have been previously improperly repaired, modified or abused.  

aball"If you have doubts about my understanding of McIntosh, I suggest you read the 1000+ posts of mine from 15 years ago. Until then, stop your useless assumptions.What I am presenting here is reality.

I am not interested in reading your 1000 posts that are 15 years old I do not believe that as you said McIntosh has gone silent in responding to your problem because that is not how this excellent company treats it's customers and now you say you are "waiting" to hear back so what you are presenting here is inconsistent self contradictory and frankly nonsensical.

aball"Emails between me and McIntosh are obviously still ongoing. Now please go away, again."

I am not going to go away bullys like you are common on any kind of forum and that includes those dedicated to Music Reproduction Systems and on top of that you seem to be confused or perhaps intoxicated how can it possibly be obvious that "obviously" you are still in touch with McIntosh when just before that you wrote -

"McIntosh has gone silent in my attempts to get them to help!"

You have attempted hear to portray McIntosh in a very unfavorable light and have tried to make the case that these amplifiers and their specially selected transisters are somehow defective when I think if you have a McIntosh amplifier(s) at all you have had it improperly repaired previously or another possibility is that you bought it used and the previous owner(s) had it improperly repaired or abused it in some way.

I think you are a winkly dinkler and if you still want me to go away that is going to be your problem I have every right to be here even though I am not a US citizen.