As much as I love the sound of tubes, they come with pre loaded wallet anxiety. Took me awhile to find what I was looking for, if any of them go bad I don't look forward to finding and/or paying crazy prices for replacements. I use a quad of Siemens EL84/6BQ5 from Lithuania and a pair 6201/12AT7WA then there's the Telefunken 12ax7's.
Sorry, don't have any 6922's here.