I use these headphones for 3 years. The report is honorable qualitprix: around 100 euros, is a product that is still to be shot (at least) essay. It's a closed headphone. Say anything at Resistors: it must be done to the gun expr.
Prvoir is best for low to medium volume COST: after two hours of high volume, bass take over and very tired. It's not a headphone for deaf, just the opposite: clear the fans (in my case), prservez your sheets with a noise level not too lev.
This headphone is not suitable for monitoring, it's just a good headphone costs. (In any fawn, I think a good pair of speakers is better suited to monitoring, although this headphone can make a MUCH complmentaire).