I have a little hard done me by purchasing the ear's, due to the review of Alexander Wölfinger. But in direct comparison with my old man, but relatively good MDR-ED21LP SONY are still worlds. Such detailed sound I did not expect. The voices and instruments can be located precisely at a time. I suspect the reason is that the two capsules produce much less distortion and therefore the aural impression will appear much clearer. A sensitive membrane, so I think also ensures very quiet and philligrane tones over days. What is even more striking that Sony has somehow managed to move the lower limit frequency so far down that one has the impression that a subwoofer would run along somewhere in the room. This does not mean that everything just deafened, no, he emphasizes the bass to 40Hz in a pleasant way.
More extensive Alttagstests are still pending, but so far I do not regret the purchase and can recommend the Sony EX 90 people who are serious about good listening.
