As I previously mentioned, balanced trans. just sort of there, doesn't add any flavor or artifacts like the other pc's I tried. Vs. dedicated lines without pc, larger soundstage, greater image dimensionality and specificity, higher resolving, greater transparency. When I go back to straight out of wall, soundstage and image collapse, pretty bad.
I've also tried Lithium Ion battery packs, nice for lowering noise floor, but dark flavor always sets in over time. Never liked any pc with every tube amp I've owned.

