I owned a DC X11. The batterylife was very bad, the PNR was good vs. Bose but the ANR on the Bose was miles better, so I sold the X11 and bought a Bose in the US when the £ was better against the $. I have however seen a couple of good comparison reviews recently that recommends this
Beyerdynamic HS 600 DANR Active Headset @ Flightstore Pilot Supplies
Personally, I have a Bose X now for regular flying and if I'm planning on going upside down, a DC 10.13 headset
