Will someone explain fully balanced.
Ground loops can exist even with a balanced connection. You may have to lift pin one.
Tubes or solid state can be balanced it just depends on how many tubes you want to use or if you want transformers.
Balanced vs RCA preamps
How important is it that your Pre-amp has both balanced and RCA capabilities? I’m shopping for another pre, most likely tube, and it seems to make sense with any future component that it offers both XLR and RCA. And to further complicate the search finding both these features plus remote limits the offerings for both tube and SS particularly tube.