The X1 is the number 1 in the price-performance bar for me. The listening experience terrific, the comfort simply fantastic. For almost 200 euros a very light, versatile and airy friend, it's fun again to sit in the chair and listening to classical sounds, but also trance. I'm not an audiophile, but this investment is worth every penny, check them out. Were also tested DT 770 Beyerdynamic, SOL Republic or Sennheiser HD 558, no one came to my taste at the flagship Philips ran.