Room is 3,5*3,5 meter - carpet floor- with a "half" open side wall to the kitchen. I have approx 2,5 meter to the ceiling. So quite a small room for those speaker - i know.
I found the problem to be very noticable with vocals especially words containing the letter S are very sharp at high levels. Tonign down the 2k by 3-5 db helps a little but its still sharp at high volume.