Next upgrade?

@sounasega

for other thoughts on how best to further upgrade i would encourage you to speak more about what you hear in the system today as it stands, what are its strengths and weaknesses as you hear the music, and what you would like to have improved via further attempts to upgrade the system

@sounasega

I have stock 12au7 for the pre and genalex kt77 on the power stage.
I alternate them with the stock el34, not much difference

most primaluna dialogue users find that replacing the two center small signal input tubes improve the sound of the unit

look for a quiet matching pair of old stock rca or ge 12au7’s, sylvania are a touch brighter but still very good, all are much more dimensional and sweet sounding than the rather lean and grim sounding chinese ’primaluna’ labeled au7’s the factory equips the unit with (you can also go with european ones but they are much more expensive and to my ear did not sound significantly better than the old stock usa ones, luckily 12au7’s are still fairly plentiful and reasonably priced unlike good old stock 12ax7's by now...)

brent jesse or andy at vintage tube services will sell you good ones (but andy won’t sell you ge’s he just hates them 😆)

https://www.primaluna-usa.com/tube-rolling

good luck

what tubes are you running in the primaluna?  input and power tubes...