I have an AN 1.1 DAC and recommend that you first try the Ei Elite 6DJ8 ... it is a very similar tube to the Amperex house sound and will work fine in the AN. Where they don't work well is in high-stress preamps like Audio Research, eats those old Amperexes alive.
I have a large stash of old white label 6922s (even 1959 D-getters), Bugle Boys, Orange Globes, etc. and can tell you that, in this application, the Ei will serve you very well.
Next try a relatively inexpensive source for Amperex Orange Globe 6DJ8s like Brent Jesse.
I have a large stash of old white label 6922s (even 1959 D-getters), Bugle Boys, Orange Globes, etc. and can tell you that, in this application, the Ei will serve you very well.
Next try a relatively inexpensive source for Amperex Orange Globe 6DJ8s like Brent Jesse.