It is no coincidence that this model has such mixed reviews. By the nature of my activity, I had to listen to different headphones, but I have never come across such a scatter of parameters in different instances. Of the 6 samples I heard about, only one pair sounded very good and the same for both emitters. To the rest, all negative statements are fairly applicable to one degree or another. But it is worth noting that I liked the sound of a high-quality copy so much that I threw my ie-4 and cx-880i senheisers on a shelf for about a year, until one of the wires was damaged in the fillets. So I think everyone here is right.
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