tom_guyette it would be the latter. It's plush and upholstered which means I'm definitely, according to your observations, getting some absorption mids and highs
Ah… no.
(He is saying the opposite.)
The sound hits your ears first.
Then it bounces back off the wingback and splashes back adding to the next wave(s) of sound coming directly to the ears from the speaker.
It should sound similar to standing with your back against the wall.
As the chair’s headrest becomes more and more plush and absorptive… it should become more and more like no headrest. And if it was a wood or leather headrest then it gets worse and worse becoming more like standing with the back against the wall
Just try the “back to the wall” and then try the chair.
And try the chair with a sheepskin or blanket on it. Or even a hard plastic cover.
There should be changes… I would think.
But plushness will not do much at all as the frequency gets lower, unless the headrest is like a transparent net.
Those are my thoughts anyway. Compare to your situation, run some experiments changing the area behind your head with the wing back, and a sense of what's going on could become apparent.
+1