Oops, my hear height is directly correlated to my ear height.
One of my best tweaks....a new listening chair
In all seriousness this new leather club chair really did help to improve the sound by raising my listening position so that it is closer to the tweeter height of my speakers. In all my speaker position tweaking I have done I never gave much thought to seat height thinking that my ears were close enough. It's amazing the difference an inch or so makes (!). The added benefit is that it is also very comfy.