I did found out something nuts on these, i got big beard and i use cap on my head alot. Now when i shaved my beard and took of the cap the sound got just bad, narrower soundstage and the bass lost its power. When i lift them just a bit to open up the seal of the pads create inside the cans the sound gets bigger and better and the bass is back, in a big way. These are totally new headphones when the seal is broken and the air gets in the driver from inside. I think this might be why some people enjoys these alot and some just hates them. Can someone test this and confirm this? Don't lift them over the grills but under or side of the pads to create airflow inside the cups.