"@buellrider97 I have about a dozen pairs of nice nos 12AU7’s for my line stage pre"
Curious to know of your other NOS vintage tubes, what is a close 2nd or 3rd to your "new" Tung Sols?
The reason I ask is I also have the new Mullard 12au7s and they are "supposed to be the same tube as the new re-issue Tung Sols with a different label" made in the same factory. I've compared them quite a bit to my paris of NOS, PSVANE, and others. They DO have extra body and weight to the sound, a bit more rolled off on top than ALL of my vintage 12au7s, a tad less depth and transparency, with less texture, as a tradeoff - in my two mono amps. My amps were originally internally biased with these new tubes, and the amp designer thought they sounded "good".
I wonder if you simply found an ideal match for your components - and that's really great if so! If yes, kinda proves its worth trying a few different tubes to get there :)

