Well, I'm returning the P7s tomorrow, darn it. They fit great. Most of the time they sound great. But as I mentioned before, there is "something" in the mid-to-upper range that's occasionally unpleasant to my ears. I had said in several earlier posts that it seemed the treble was at fault on the B&Ws, however I don't think it's the treble per se. The AE2s are much brighter, but they don't reach out and punch my eardrums the way the P7s sometimes did. It's curious; more like a level of varying intensity rather than a particular frequency. Interestingly, the output is noticeably different when running them from the iPod as opposed to the Macbook Pro or the PS3 (HDMI to Pioneer receiver). I did extensive comparisons to the DT1350 and AE2 (also the DT990, but since that's a big open can it's not a fair comparison). Oddly, the P7s required more power from the Macbook Pro than the other cans. When I played them through the iPod the volume differential was not so apparent. To me, the P7s sounded better coming from the iPod, compared to the Macbook. From the Macbook, all three cans sounded "less different". Maybe I'll give the HP50s a try. Man, I hate returning stuff...