Well, what I'm saying is have you done this? If you do, you don't have to be a Golden Eared Wonder Boy to hear it. Put em on and start bringing your hands close to the cups. Any restriction to out flow causes them to do a strange Honking kinda noise. If you want, go straight to hands over the cups and move them out. I would be amazed if you don't hear this. Covering the back of the cups makes them un-listenable.