I'm more the type to take a few weeks to look at the comparative, opinions on all products before they get into an order. My Sennheiser PC 151 with all the welds on high, it is time to take the plunge. So if people read this comment, I think it is much to ask the questions, Beats headphones or not? Opened closed? Removing sound or not? Cheese or dessert? In short, here is what has been for me. I like clean sounds such as artists wanted them, (no I do not distort equalizers way "---___---" sorry ...) Then I came across the excellent AT brands AKG I pass by, but still too expensive, or no short notice ... My use this down to my place of work and travel. Noise Cancelling headphones were directly ejected from my list, for home or office, do not bother and frankly the train journey and the plane is not fair to the throne ... I ' I still took off because with my previous open headphones I was not necessarily very comfortable. Here the helmet is closed, it covers everything my big ears, no pressure on the cartilage and lobes, I 5h guards and no red ear syndrome. This headset is indeed closed, as saying that, if I have the ears I can forget the very expensive drill office renovations next door, and there is a sacred surprise! The ear breathes and is not completely stifled in the helmet it is a really pleasant sensation. Its level is just impeccable, as saying that my old cd who had the misfortune to be encoded in 128Kbps are not listenable (for my taste) .It own, it does not drool, I do not have yet managed to do so saturated. I did the test sound bass beats and company, it is not all seeds. The sound is natural, is not tampered with it is just what I needed. Regarding the Burning, I've had 2 months to around 4-5 hours listening days, and I do not know if there's a difference there (too gradual change?) In any case it is a matter