I have the headphones for correspondingly good reviews; I've read in www.testberichte.de purchased. I had previously repeatedly a Koss Porta Pro. Sure, this is very light and has his standards also really a lot of "oomph", but the advantage of Incase Sonic headphones is in the closed design that shields many outside noise. Nevertheless, the comfort is great. The headset does not express, but sits very stable and safe even when bending on the Kopf.Die centers are in the upper part may be a bit muffled, but it offers crystal clear pictures and a height powerful undistorted bass, which can be seen. The soundstage is very good overall. Overall, compared to the competition in the same price segment a Super headphones.