EQ settings seem to be wrong
today I tried to apply the same EQ profile in Linux which I also use on Windows. I noticed that the lower frequencies had way too much gain. I am setting the EQ through PulseEffects (https://github.com/wwmm/pulseeffects). It uses the EQ from gst-plugins-good, and I also reported the issue to PulseEffects (https://github.com/wwmm/pulseeffects/issues/421).
There seems to be a similiar report from 1 year ago which no one touched so far: #374
Those are the EQ settings I applied: https://www.dropbox.com/s/k7wry3s24r2y8sc/Sennheiser%20HD800S%20%2318002%20pt1.pdf?dl=0 https://www.dropbox.com/s/way36c2dofncrvc/Sennheiser%20HD800S%20%2318002%20pt2.pdf?dl=0
Let me know if I can provide any more useful information.