Thanks for the thoughts, Sune and Craigster75. Ultimately, I decided I just didn't like the sound.   I think it's worth saying here that if you like a fairly bright-sounding headphone, these might not be for you. For reference, sets I enjoy include the aforementioned Sennheiser HD-280...

Hi all, thanks for your advice re: whether the 2's amp is worth the extra money. I went ahead and bought the 2. I've spent a couple of days with them, and of course my experience is totally subjective, but this it so far:   -Right off the bat, these sound super-bassy and a little dull to me...

Hi all, I'm trying to choose between the M4U 2 and the M4U 1—that is, deciding whether I should spend an extra $100 for NC and the amp.   Can anyone comment on:   1. Isolation (with noise-cancelling turned off). I don't do that much flying, but I do ride the subway every day. I've never...