Are the XLR outputs of OPPO BDP-105 true balanced?

In one case in order to provide perfect cancellation both output stages have to have exactly same gain and bandwidth while in the other scenario whole leg of amplification has to have exactly same gain and bandwidth - otherwise common mode noise converts to normal mode noise. It is easier, in my opinion, to match single output stage.

True balanced configuration cancels even harmonics (warm sound) but does nothing to odd harmonics (bright sound).

Very interesting, thank you Al. My Rowland 102 has THAT Corp. input instrumentation amp THAT1200.