First tube preamp recommendations (under $5k)


Right now have di20he -> terminator -> he9 -> pass x350.8 -> ATC scm7 / NS5000.
I am thinking of introducing some tubes into my chain. I like the sound I am getting but want to explore what tubes can do to the sound (slight warmth, biggest soundstage, better layering etc etc). Don’t want to go to nuts on price. If price is over $5k would consider if its really exceptional (but for sure not over $10k). Totally fine with used. Balanced would be nice but not mandatory.
So far I am thinking RP7, EVO400, bhk. Any thoughts?
smodtactical
@tomic601 thanks man ! Appreciate the tips
@ghdprentice beautiful systems! Truly end game
ARC 5SE seems like a solid choice. And good on your wife to get the ball rolling, though you were also right to bump it up to the SE! Sometimes we audiophiles truly torture ourselves with endless internal debates & second guessing, resulting in decision paralysis. Enjoy!