Seeking for around 3 months a new headset. In addition I have tried all the headphones in various ligands electric markets. Equipped with an I-Pod opened me also sealed packaging many friendly vendors and let me try. As trance and electric fan no headphones were able to convince me. Neither Bose, Monster Beats, etc. I found really great. Either totally Plated Bass or consumed centers or lack of heights. Then I came here in the net on the M-50 and ordered - yes have 14 days to return ;-). But I can only say: Absolute madness! So I imagine music and sound. So clear, so brilliant, powerful and yet not exaggerated bass. and for less than 170 EUR. I just hope they keep - but with 3 years warranty on Amazon I'm making now no worries. However, the listeners are probably not for the subway, because they are quite large. I test them sometime soon on the plane. The comfort is great. It is interesting that they really reflect details in music that you usually do not actually listen to. Thus: Absolute buy recommendation.