Have you heard the sr850c ?? I loved the mids on them..they sounded pretty flat to my ears except for a few peaks high up! And the stage is pretty decent albeit more vertical. Definitely better than all the headphones that have been suggested to ganesh.
Forget the srh440, The zx 700 compares favouribly to the bigger srh840 in my opinion though the soundstage is narrow. The isolation is still some of the best you can get in a closed headphone.you don't...