I have tried many IEM, none can satisfy me in all aspects, and finally I got the one. I am using pioneer xdp-300r as source.
Pros: The PP8 sounds natural, balance, crystal clear, high resolution. Not too much bass, but just enough. Sound stage is natural too. It is extremely well tuning. It also fits my ear, just like a custom made earphone. Satisfactory build quality. I will not get tire with a long time usage. I think I will not further upgrade my earphone. This one is nearly perfect for me. It?s a very worthy upgrade and recommendation.
Cons: It is pricey