A pair of "warm sounding"6922 tub

I've tube rolled about 20 different 6dj8 tubes in the last year, and I've learned a few things....I've yet to meet a Mullard I like, they all have no top end extension to my ears, and some are seriously lacking in dynamics and initial transients. I've tried the Siemens Cca, both the earlier Halske and later Rohre and while incredibly detailed I found them a little thin also. In fact I found the Siemens 7308 tubes to be superior! Be worth your while to try them. I am currently trying out Amperex stuff, the PQ white label seems very impressive so far, but its to early for me to comment yet. The tube for you is the Telefunken Cca. A beutiful soundstager with incredible dynamics and detail, with just a hint o wamth. Its my favorite 6dj8 tube, followed by the Siemens 7308. Be warned, they are hard to find and pricy! (expect to pay between $300-$400 a pair NOS)
dudeaudio

I hear the siemens to be warm and very detailed and telefunkin to be a bit less warm but have just little more detailed, all most the reverse of one another.
I just purchased the seimens nos 6922 for a Sonic Frontiers D/A and the sound is warm and detailed, very nice sounding as I think I would prefer this over the telefunkin as my speakers are Martin Logans and they like a hint of warm! May consider lookng at your IC and speaker wire first. just a thought! Happy Listening!

The NOS Brimar 6922s are warm/soft when in my Sonic Frontiers Line2SE. The Brimars are relatively inexpensive too. SF probably still has them. Cheers. Craig

I like the Siemens (used CCAs, Falcons), but agree they don't have the warmth of the Telefunkens; I like both, but for different reasons and for different music. I also like the Amprex 7308s, but also feel they aren't as warm as Telefunken. RCA made a great tube, very warm and detailed, but not as detailed as any of the ones I mentioned above, however for the price, I find them a tough tube to beat in my Sonic Frontiers Line 1.

Be careful when buying Mullards. You want ORIGINAL TUBES from the '60's or '70's. There are people (no names!) selling mil-spec Mullards, in white boxes that were manufactured in the '80's. I am familiar with the 12AU7 variety, marked as a CV 4004 KQDD/K with no Mullard name on the tube (manufactured in 1985). THESE ARE PURE CRAP....noisy and microphonic as hell. If there is also a 6922/6DJ8 version, stay away from it like someone with SARS!!!! This garbage is NOT THE REAL DEAL, NEAL!!!