The audio from your retailer was sobering. On the one hand there were the first "Over Ears" also expressed for me, and - far more disappointing: although the P7 sounds a bit better than the P5 - but not substantially better. In addition, the KH is relatively difficult - for hours of listening, there is also therefore better.
"Whathifi" says: "Sensational detail and dynamics". Therefore, had me in terms of resolution a discernible move towards high-end (is in reviews so happy so would suggest) such as a Sennheiser HD800 expected. As I had hoped for too much SIGNIFICANTLY; the statement of the British is probably dyed something patriotic.
My conclusion: Those to whom the sound is significantly more important than the appearance should ask around for alternatives. Because of the P7 is more what for round-gazers than for head-phones.
Design & Material: Top.
Sonically: ok.
Ergonomic: (. Wg weight) mediocre.