Toddalin, I think your right about listening room waveform interactions.
When I get a new CD I usually first listen on my standalone OPPO 83, Pontus II, Jot 2, Aria headphone system to evaluate all the detail, ambiance, tone/timbre, space around instruments/voices, base clarity, etc, etc.
I'm often pleasantly surprised when I play the same CD on my OPPO 105, Bifrost 2, Pioneer Elite, Vandersteen CE 2, HSU sub, home theater, set for 2 channel...which has less of all the above but often very obvious added depth and height sounds, Those original Chesky binaural recordings being the exceptions... best on phones. Also engineered play with phase, I think, can put sounds behind me on the phones. Very much enjoy both presentations!