was now a year since I use this headphone in every configuration possible, taken from collection's outdoor environments, taken studio, monitoring, home ... nothing wrong ... except that I have a big head and I am the limit of rglages: D. .. I tried the totality of headphones in stock at the rvendeurs, and in my opinion one of the best quality-price report ... the sound is simply excellent (with a good record of serious, all remaining fairly neutral), the perfect insulation, and it does not tire the costs (in contrast to Sony that the seller wanted me refourguer that all costs have too large a momentum, which trs trs tired quickly), it is trs comfortable, you can change the pads (leather or velvet as you wish), just gnial, however I will buy a second ending for ... or DT 990 Pro