Anyone have any strong feelings on the Shure SRH440? I'm sorely tempted by the AKG K271 MkII, but they're obviously a titch more expensive. I'm looking for something to use at work with my headphone amp that will block out my more irritating coworkers. I used my Etys yesterday, but they're just not comfortable for hours on end, plus they take longer to take off/out than regular headphones if someone needs to talk to me.

Most of the time, I use my Senn HD570s, but since they're open, I have to have the volume up pretty high on loud music to block out the irritants.
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