I watched it too. I also found the transformer part interesting. On a general note, the segment made it pretty obvious that there is a high labor content in the assembly of amplifiers. No wonder so much of this industry has moved off-shore.
McIntosh to be on How It's Made this Thursday
Just a quick note I received from McIntosh that the Science channel will have a segment on how the MC275 is made this Thursday evening. For anyone interested it may be fun to see the McIntosh factory.