Now the purchase history:
The reviews for Philips Fidelio X1 were so good that I ordered it myself. Unfortunately, I had noticed during the test phase, the bass though was nice but too much and I always had to turn down him in the equalizer. Overall my sound character had but very much. Music has just so much fun. But the over-emphasized bass could continue looking after me my KH. I realized that I had my KH is not found.
So I tried the Sennheiser HD 650. As Hanoverians I had to try one here a product. He listened to very carefully, unfortunately, also very boring. The X1 was pure joy, the HD 650 rather cautious, clinically. I am not a fan of Boom Boom Music, but a nice bass line for example on a bass makes me have joy. I also did not want to invest in a KH-amplifier at 300 ohms. In addition, the KH should be from time to time on the mobile phone used.
I had therefore not been found in both KH my passion, I ordered the successor of the X1, as these have a little less bass and more harmonious should ring.
In brief: The X2 is super! Beautiful Distribution, nice bass, music pure joy. And you can turn him sometimes beautifully loud without distorting.
A pure buy recommendation from me.