Eh voila! I finally decided to replace my HPM1000 which, although still brave (it's the sound this stuff!) Had a quality improvable.
With the HPS5000, I'm on the back! Level sound quality, it is in other brands put 2 or 3 times the price for the equivalent. This headphone offers the best quality / price ratio that I have ever seen.
I withdraw, however, one point for ease of use, far from being equivalent to the older models. Dommaage ...