@jamesh, thank you for the great reply. Clearly you are onto an important attribute of various regenerators. One where the P3 trails, within the PS Audio line. So now for the tough question…
How much does that matter?
I’m not suggesting for a moment that at the highest end of systems, that EVERYTHING does not matter. I’m quoting others on those words, but the point is the same. Namely the lower impedance of the P20 is a good place to improve the performance of a P3’s higher impedance, in top of the line systems.
But how much does the impedance difference mean to less than cost-is-no-object systems?
I understand my question is a little like the absurd “Please put a percentage to how much better is this than just good?” Tough to objectively quantify. So your indulgence is appreciated.