Very good sound, moderate durability

== == Positive
1) For this price range unrivaled sound: very clear, detailed, spacious sound with rich bass. The sound I would describe as a whole more "warm". I know that this description is rather frowned upon by HiFi enthusiasts - what I want to express it: the sound is very pleasant, making them suitable for longer listening without nerves.

2) comfort: good for me personally, I can wear the headset for several hours without problems. The partly negative reviews about the Haltekonstronstruktion I for my part can not understand, but I think that is all matter of habit. On the contrary, I find that the design and build quality compared to other models in the same price range is very good. At the beginning of the bracket a little work still "stiff" and can press slightly, which then, however, sets the time.
The headphones act altogether but in fact somewhat "clunky" and are quite thick; for "his head on the side are" therefore only conditionally suitable.

== == Negative
1) As mentioned above, the durability of the Koss KSC 75 is bad. There seems to be loose contacts. In my first 2 models, which had been so expressed that after some time had first heard a cracking / crackle; after a while, then fell mostly one of the two channels completely. My now 3 model now has a slight different design of the catch - it remains to be seen whether this will affect the durability.

== Conclusion ==
Despite the expiry weakness I give 4 stars because I just found yet in this price range is no better sound.
For comparison, I had between a clip-on earphones purchased from another manufacturer (Panasonic RP-HS46) and was frankly quite shocked: The sound was a bad joke (tinny, hollow, without bass), the Koss KSC75 are worlds , Even the comfort I liked better in the Koss KSC75.