Upscale Audio and Primaluna

There’s a lot  of BS in the adverts C core transformers are far better like the world class Lundahl you see in Ayon for example , Torroid are better in solid state gear
look at-any top quality tube amp C cores only .
and the auto bias system nothing to tag about bunches of resistors in the auto bias. Ayon night and day more reliable and high tech ,it doesnot average all the tubes like in auto bias , the Ayon has a micro  processor and monitors each tube 
for optimum Ma voltage , and when a tube goes the amp will go into standby and a led will come on , you reset the bias and the processor readjusts it .
far better and a machined aluminum  case for vibration ,not cheap sheet metal.

Those folks are one town over for me, so I go to them for tubes and I actually bought my Rega turntable from them as well. Not a bad company to buy from.

That being said, they are very salesy. The amount they push primaluna gear makes it very obvious that they have some sort of skin in the game. 

kevin deal is usa importer and part owner of primaluna

you call the phone # for primaluna support for usa it rings a different line in kevin’s location...

https://www.primaluna-usa.com/contact

https://www.google.com/maps/place/2058+Wright+Ave,+La+Verne,+CA+91750/@34.0944727,-117.773802,19z/da...

Funny thing about Cayin. I had my Cayin HA-300 repaired buy Jake Horowitz who's part of Westrex, a division of Western Electric and who has worked on tube amp for long a time. He was surprised at how good the Cayin HA-300 was, even with the stock TJ Full music tubes.

I had to get a wire-wound resistor replaced because sadly one of  my 1 year 2 months Psvane ACME 300b tube, which I really love on this amp, flashed white and damaged it.

I got the amp back and it still sounds great with my Chord HUGO TT2 + Audeze LCD-3, but now I'm waiting for a pair of reissue Western Electric 300b.

I've only heard the Primalunda EVO300 once at Upscale, but that wasn't a fair comparison because it was hooked up to a DCS Bartok, which is my end game DAC.

@andysf  Interesting point. Would be interesting to have something like a "fair trade" label on audio to ensure that not only products but components are sourced in ethical ways and with working conditions that are up to snuff, too. And, of course, where profits go. This is, implicitly, something which Schiit has done, I think.