The fit issue is more like buying shoes. No matter how hard you try. Some brand of shoes will always gives you blisters. The last which the shoe made from simply deviate too far from the shape of your feet.
Similarly, K550 has a rather large circumference. People with less prominent facial features around the ear will have a good fit (seal) and will enjoy the near zero clamping force without any modification whatsoever. (Including me)
I can just casually throw it on my head and enjoy it without any fiddling.
ya i have a fat face so the cups stuck onto my face just fine from day 1 ...or the day it was conceived in the design house.
the bass is there...not anemic at all...v good can cept a spike somewhere which i managed to tame with some felt behind the drivers.
ok the denon stock pads fit the k550 ...the jmoney denon pads too. FYI.