by far the best headphone I have listen to under $ 750 . I run live sound in refence tune venue , and as a result I can actually use these for live mix as they be almost dead on . the only issue I have with they be that if you do not have a round head they can put pressure on the top of you head , but that take about 3 hour to become uncomfortable . as far as reference headphone go , these be hard to beat , just make sure to get a good amp , or the fat-pipe upgrade if you be go to be do intense studio mix . I listen to music on these headphone exclusively now as they have a much wider response than any other headphone I own ; but you need to have a good understanding of eqing sound system to get they to really shine as they be a blank slate .