Telefunken 6DJ8 for my DAC

Hi S23chang,
Why do you think I would be better off with the Siemens 7308?
I have no experience with either of these tubes, though I think the Siemens are readily available.

Thanks,
Jose.

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.