Highest BUILD quality tube amps?

I have enjoyed my (David Berning EA2101) for decades.  One tube failure in all those years.  I'v owned many Mcintosh amps, both tube and SS but I keep going back to my Berning.. 

I have owned a large number of tube amps over the years. The list includes a pair of McIntosh MC60, a pair of Paoli 60M which were enhanced Dynaco MK3, Hadley 601, Conrad Johnson MV50, and Dyna 70. I've always preferred tubes.

My current amp tops them all. It is a model 66-100 from Elliott Studio Arts in Seattle. Each unit is custom-made by hand. The transformers are made in the USA and they are huge. The circuit is wired point-to-point. The mechanical construction is aircraft quality. The heavy gauge metal chassis is machined to tight tolerances. It uses quality fasteners and sports high-quality paint and plate finishes. But it's not just beautiful, it is quality throughout. 

The best part is the sound. My unit uses four KT-120 tubes that provide plenty of power for my power-hungry vintage JBL L-250ti speakers. (Lower power tubes can be used as well with slight mod by Kevin Elliott.) Tube bias is easily adjustable with controls on the top and a built-in meter.

The amp comes with a 5-year warranty plus complimentary minor upgrades if circuit improvements become available. Kevin is easy to talk to, builds a great product, and stands squarely behind it. And the price is much lower than many of the other quality amps of the day. I highly recommend it. 

Air Tight here,

ATE2 preamp for 11 years now. Nothing to fix until now. Works like a charm 
ATM3 amps for 23 years. Only one timer (starting tempo for protecting the tubes) to fix 3 years ago. 

And wonderfull music !

Thank you Miura San and Respect.

Bdp24, the preamp,monoblocs,and dac from Ear are great!!! Beautifull,natural and holographic sound.
i have the preamp Audio Note M5 and poweramp :GamuT D200

Kronzilla or for that matter any of KR Audio's tube amps out of Prague has been my favourite for years(currently got 3 pcs.). Build quality and sound is our of this world. May not be the prettiest around but they do for sure stand out in every other aspect.