tried the DC X-11s and sent them back after only 1 week, was a big David Clark fan up until this point...for the money they just looked and felt cheap, ANR was dissapointing and battery life poor - went completely flat with little warning. I then took the safe but more expensive option and ordered the Bose. For a long time i looked at the Bose X as being too flashy and more akin to being next to your stereo at home than in a 30 year old cessna! But they have been worth every hard earnt dollar i paid for them, sure theres no inbuilt mobile/ipod connectivity but you can 'build' your own version of that quite easily. 9/10 vers say 7/10 for the DC X-11 in my 2 cent opinion.