I recently bough the Sony cans and have exactly the same problem, glad it's not just me. Now I'm trying to figure out if I should replace them for better ANCs or a pair of IEMs...

I recently bought a pair of Sony MDR NC-60s but am disappointed in the sound quality and feedback from the NC. I am considering buying a pair of Soundmagic PL50s instead - how might the isolation compare to the Sony's NC for taking the underground to and from work?

Bought a new pair of the sony noise cancelling headphones and all is well and dandy except for the horrible thudding noise in my ear when I walk. This only happens when the NC is switched on and if my foot lands too heavily I also get a crackling noise in my left ear. Are they faulty or is this...