2019 300B tubes that are worth the money?

Don’t forget that 300b tubes have a long life span, therefore, if you do find a pair that you like, the cost of ownership can be amortized over a greater period of time. 

Some tubes like a lower bias. Some tubes like a hotter bias. You owe it to yourself to experiment lowering and raising the bias from nominal by 10-20ma to see if it gets you the sound you like vs flushing money down the toilet. Those Psvane Sophia whatever princess and the pauper are nothing but TJ tunes relabeled with a funny name. All hail the mighty WE and the so called reissues. But you can buy a few amplifiers for the price of 2 tubes.

Some tubes like a lower bias. Some tubes like a hotter bias. You owe it to yourself to experiment lowering and raising the bias from nominal by 10-20ma to see if it gets you the sound you like vs flushing money down the toilet.

Increasing the bias as much as 40% over their rated value will shorten the tube life significantly.  Always check with the tube and amp manufacture for the recommended bias value.

Hi @shkong78,

Did you compare Psavne Acme 300B and NOS WE to other 300B tubes?

I had WE reissue from 2000x. There are very average overrated tubes. 
(I know that old WE is a different story.)
I have TJ "mesh plate" 300b. They where really not expansive but for my test sounded better compared to WE reissue.
I also have EML  "mesh plate" 300b. They sound significantly more refined and warmer compared TJ  "mesh plate". But now EML increased prices.

Regards,
Alex.