These have decent isolation, a tiny bit better than, say Denon D2000. There're many closed-back phones that can outdo them in this department though. But I have a small head so that may have something to do with getting the best seal. My guess is if the CD3000 and DX1000 can't cope with the noise then the K1000 probably won't do any better.
3/15/13 at 2:45pm