The best 6922 I've heard are the Amperex D Getter from the late 50s early 60s. I prefer them to the 7308. I used them both in my MHDT Orchid Dac and the Decware SE84UFO.
Seeking suggestions for 6922 tubes
Some years ago Kevin Deal had a good price on a stash of Telefunken gold pin 6922 tubes. At the time I needed a pair for my DAC, and they worked out very well. I'm still using them today. Now I find myself with a preamp that also uses a pair, and it seems the Telefunkens are not available at this time.
I would appreciate suggestions of alternate brands that I might use for this purpose.
Thanks, John