Don't know what your budget is, but I can tell you that i have found the older 6SN7 Modwright digital sources to be passive friendly. Not sure about the 6922 designs. Ask Dan.
Having said that, I'm not sure any source is going to give you the dynamics you want with a passive. I used passives for 2 decades. I was willing to sacrifice something in dynamics for something in transparency etc. I found the Coincident Statement line stage gave me the best of both worlds.
Having said that, I'm not sure any source is going to give you the dynamics you want with a passive. I used passives for 2 decades. I was willing to sacrifice something in dynamics for something in transparency etc. I found the Coincident Statement line stage gave me the best of both worlds.