I own the H6 but have auditioned the P7 a lot at the Apply store. The P7 is thicker and warmer, much more bass. But it's still retains good detail and treble extension. I find it very hard to pick between them. I went for the H6, I think the P7 is a little too blingy to wear out but if I has unlimited money I'd definitely have both.
12/14/14 at 12:18am