I've just purchased a set of SRH1440s a couple of days ago as an upgrade from the Audio Technica AD700. In a way I feel the shures and the Audio Technicas have a similar kind of sound presentation although the shures are obviously a lot more refined and sound more 'alive' to me.
However I've noticed a problem with my set, I'll have to get them replaced under warranty come Monday as there is definite distorted harmonic to bass from about 150hz down like a farting kind of sound on both the left and right sides but louder on the right side. This is generally mostly inaudible with a lot of music but is quite noticeable with d&b/dub-step or music that has bass that is prominent and separate from other frequencies in the music (Massive attack's Angel sounds horrible until 20 seconds in and 25 seconds from the end of the song is also bad.) It becomes glaringly obvious that there's something not right when I start playing with a software based sine wave generator particularly when my the AD700s don't have anything like this higher frequency distorted overtone that's just as loud as the bass frequency itself.
Edited by J-a-k-e - 8/31/12 at 3:27am