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.