Best High End Audio Manufacturer???

I cannot imagine how a company can expect to survive with poor service. Of course good design can reduce service needs sharply, but the word gets around quickly that a company has poor service.

This usually means they are in financial distress and about to fold.

Most companies with a long standing record of good service most likely also deliver high quality products initially. Otherwise they are not likely to survive. That's why the length and quality of a companies track record has to be a a major consideration in determining "the best".

Its always cheaper to get things right initially than to have to go back and fix them later.

Good things survive. Bad things seldom do over the long haul. Funny how that works....

Which is why Audeze scares me. too many stories of broken Audeze cans.

Conrad Johnson; any and every tube amplifier and tube preamplifier they have ever made. Nice warm, clear and  transparent sound! Very good at creating a deep, wide  soundstage. None better!!

Even though I love Vitus Audio, there are too many other companies like
Soulution who are also building great amps and digital products, so I'll go
with Magico. With the M Pro and its advances in driver and cabinet
technology, and the Q7Mk2 & S7 models which followed, Magico took a big
leap forward. And if you look at their manufacturing capacity and use of
cutting edge software modeling tools and materials science, I think you
could say they've reached the top of the hill.