You can get these a little cheaper from
http://analogtubes.com/tubeshop/index.php?main_page=product_info&cPath=9_118&products_id=1030
I just got a pair of the 6922s recently. They are warmer and a little more laid back than EH tubes, though not as good in the midbass. But A-frame Amperex 6DJ8s were even warmer and didn't cost much more.
This is in a BAT 3ix, which I'm not sure is the most revealing circuit for these kind of comparisons.
http://analogtubes.com/tubeshop/index.php?main_page=product_info&cPath=9_118&products_id=1030
I just got a pair of the 6922s recently. They are warmer and a little more laid back than EH tubes, though not as good in the midbass. But A-frame Amperex 6DJ8s were even warmer and didn't cost much more.
This is in a BAT 3ix, which I'm not sure is the most revealing circuit for these kind of comparisons.