Originally Posted by Red Bread
For over the ear, 840's are great, they're not noise cancelling, but they are closed, and fairly isolated. I'm using a pair of AKG 271's right now that are another, great closed can. For in ear, Shure 315 and 425 are both good choices. If you're using an iPod or similar, you might also look into the Etymotic ER-4P's.
So Shure 315 and 425 are good for noise canceling? Better than the bose qc15?