One only has to open up their equipment in order to determine if true balanced, mirrored circuit path, power supplies,power and output transformers, my Coincident Statement even has dual transformer volume control. Also true balanced pre's used with true balanced sources such as dacs may offer even greater beneifits, pseudo XLR inputs on pre may in fact be inferior to single ended inputs such that using the superior balanced outputs on dac may be compromised.
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.