I'm looking for some headphones and as can be seen Here http://www.head-fi.org/t/529144/buying-headphones-seeking-guidance-dont-start-a-new-thread-ask-for-advice-here/7935#post_7810599 I need either Noise cancellation or Isolation. I suggested the Pearl PDM-250's which are made by Beyerdynamics specifically for drummers and are very similar to the DT770's after my post the DT770's were suggested with no mention to my suggested PDM-250's. I kind of want to rule out noise cancellation as I've read on this forum that there really aren't any headphones that sound that good w/ that option. I don't have alot of money to through around so if I can get good at isolation and quality it'd be outstanding. Has anyone done a comparison to the DT-770's or even heard these headphones? They advertise 35db of Isolation higher then most any others that I've seen. I can get them on amazon for 199 dollars so the price really isn't much different.