Who makes the best noise canceling headphones?

[Mouse]

Originally Posted by scirica

I'm not big on electronic noise cancelling. I go with IEM's and I've been using Shure se535's for a long time.

After a couple flights I'll confirm that both Shure 846 SE846 with yellow foam earplugs and Campfire Andronica with marshmallow tips both sound far better than Bose IEM with noise cancelling. I brought all 3 to test in flight on my last 2 trips.

With Bose I hear the hum of the noise cancelling, and also some noise of the plane.
With my 2 premium IEMs they both drown out sound in a passive way like earplugs, and there is no noise cancel hum at all, and they sound far better than bose on and off the plane.