As with all in-ear headphones is the sound, especially in the bass, heavily depends on how well the listeners sit in the ear canal. With three sizes of rubber inserts the CX 175 is likely to be well adapted to most ears. At least they are sitting with me after some fumbling good and convincing then with proper sound and powerful bass. Very bad, I find that the CX175 have no right-left-marking that is very unprofessional !! So you have to figure out the alignment itself, which for example is in principle no problem with the computer. A dab red color then takes the mark. But a company. Sennheiser is absolutely unworthy !!! The listeners are very small, the exterior is round. This is the introduction into the ear of a real fumbling, especially since you can not feel for a proper fit through the round shape. The cables are very thin; it remains to be seen how long the hold! Some skepticism seems appropriate. When packaging is disturbing that everything written, even the warranty promise is printed on the packaging inside and out. Since the packaging on top of that can not be opened without destruction, has no viable base for the tray. They must create by copying itself.
