Re: noise cancellation headphones
I tried BOSE ones and was amazed by the technology but
the sound from noise canceling ones is kind of approximation of the real sound.
Well, if you use noise to kill noise by phase inversion it is all good as long as your noise is "corresponds" to one that is emulated by the circuitry. Once there is system that records noise real-time, samples it, and uses this noise to kill the current noise I might be tempted to get one.
Did you think about in-ear headphones instead like E2c?
Specs change but the wattage remains the same.