I recently got the P7's as a xmas present.
I tried them on recently and WOW! I was half listening (whilst doing work) to arcade fire's new song Reflektor which i have heard many a time, and all of a sudden I heard Bowie's voice in a part of the song I have never heard before. it was SO CLEAR! this is plugged into an iMac with no DAC!
My HiFi system also lets you hear his voice at that same point in the song but its far more discrete and difficult to spot. I had to search for it, whilst with the P7's it was right there in all its glory. still subtle but clear!
Very impressed so far. I compared to the H6 from B&O and whilst the H6 must be the comfiest i have ever worn and superbly clear, they lacked just a bit too much bass for my liking whilst the B&W had plenty and it was controlled.
Parrot Zik? I found them to be muddy and bass heavy. did not like.