Highest BUILD quality tube amps?


Not so much with sound...lots of ways to fine tune thru tube rolling, etc. I'm just curious which tube amps are built to last for many years with the least amount of repairs. I know Mcintosh comes to mind for longevity. I was snooping around on the web and Air Tight seems to be built like a tank and I've never read any poor repair histories. Luxman same thing. Any others come to mind?
aberyclark
One of the biggest considerations I have with purchasing audio equipment is the quality level of communication and support. Often companies offer long warranties but don’t want the customer to use it. So you can’t get ahold of them, you are put on the long backlog or back burner. A quality company responds to customers concerns and backs their products!!!!!
Having already owned tube amps from ARC, Cary & Rogue the best is my Music Reference RM-10 Mk II bought new in 2011....hard wired point to point masterpiece...bulletproof, light, small footprint, simply built, easy on tubes and great sounding.  It's a remarkable piece...  If 35 watts is enough it's hard to beat
 +1 Audio Connection. In my many years in this hobby and with respect to many of the very fine products mentioned in this thread,  Quicksilver audio is among the best values I can think of. A no brainer choice matched to the proper speaker load.