Telefunken 6DJ8 for my DAC

I've tried over 50+ different 6DJ8/7308/6922 tubes
for both phono and line stage in preamps.
If that's not enough for you then I don't know what else to tell you.
Yes, I do own Telefuken 6DJ8s. If you don't mind microphonic then you can try the Telefunken 6DJ8s. It has nice soft mid range in a preamp, but lack of authority in bass and not enough spark in the high frequencies.

S23chang,
I'm going to try the Siemens 7308 you recommended. Meanwhile I got a hold of the telefunken 6DJ8 2 days ago and while my initial impression was that it was really great, I'm starting to feel that the high frequencies might be rolled-off too much for my taste, as you stated. Good thing I can return them.
Can't complain about the bass though. It has mucho authority without any bloat.
Anyone else have any suggestions?

Thanks,
Jose.

I'm using pair of NOS Siemens E88CCs in my 3.1x Balanced. I bought a pair of them along with a pair of Amperex ECC88s. I lucked out - the Amperex worked better in my preamp, and the Siemens worked better in the DAC.