Remedy was to be created, that I have the ear pads with which of my old Sony standard in-ears exchanged. Now the KH could reach its full potential. The Sony are in my opinion the best, because they are very soft and adapt well.
The sound is very differentiated for me. Bass are neat place, but do not drown the centers, as well as the highs. So you can then decide for themselves on the equalizer really exactly how it should sound. For me, I have the bass turned up and the remaining frequencies a bit reduced. Unfortunately, the headphones go go not as extreme in the basement as regards the bass. If I would appreciate, then I would estimate it at about 35-30 Hz. Is understandable that they do not come with a much smaller volume of the driver, if one compares this with a Logitech G35, to 23 Hz. May be due to my phone, which does not spend so low frequencies (listen with headphones exclusively on cell phone), but I think is unlikely.
The buttons work with my Sony Xperia Z with no problems. Cable noise are present and which are not exactly quiet. Sport I would never want to do with it. I understand 'not why Sennheiser does not manage to isolate the cables properly. Beginning with my previous Senn hoarse. Other manufacturers can do better. For me, someone who daily 2-3 H moves to the track and moves not particularly here that's fine. Nevertheless, it bothers. Therefore I 4 stars. The one with the Ear Pads I do not see as a point of criticism, because that definitely does not apply to everyone,