Portable full size closed category in particular requires repeat demo for extended wearing fit and comfort. Typical smaller tighter sizing versus home full size cans really comes into play. The P7 would be my expectation to win for compromise between fit, stayability and comfort for most people imo. The M500 are light but slide around so would you even want to be running for the platform? Hmm. Also M500 cup dimensions and design does not do enough to isolate commuter environmental noise imo
Back to sound, if you cannot hear the "bigger" sound as I have described there is not a lot I can respond with. Perception is individual. If you cannot then consider it £70 saved (or however much the price difference is in your home market). Emphasise certainly did not want to like the P7 as M500 purchased only earlier this year. P7 ticked more boxes as a travel can *sigh*
I didn't think much about the soundstage, all I could hear was a treble that was too bright and a midrange which lacked fullness. I did want to like them, they were beautiful and the fit was great. But they just didn't sound good, no matter what music I played with them. It was not slightly worse than the m500, it was not in any way comparable. Burn-in can change a headphone's sound a bit, but not so much it would make that P7 I heard on par or better than the M500 I compared directly to. All positive impressions leaves me with only one logical conclusion: that P7 I heard was faulty.
As soon as I get a chance I will try them again.
Edited by Lan647 - 10/27/13 at 2:45am