Loud and bassy many, but who wants to hear additional time jazz or classical music may be noted that the air is thin up. My taste in music is very broad (eg, Linkin Park, P! Nk, the Prodigy - but also Vivaldi or Bach). These headphones can convince in all musical genres.
The technical data I have not analyzed, but have trusted my ears. The feedback from the circle of friends are with me.
So why not 5 stars?
For a suggested retail price of 400 was at a few corners unfortunately somewhat saved the material. It is not acceptable that, some fine scratches, the headphones after 6 months and careful treatment that can already detect the foam cushion of the bracket. Since the headset in the summer either way ensures warm ears - but bearable - if you had the material may choose quiet half a millimeter more or a higher quality material here. For clarity, the part was only on my mind, in a backpack or on a shelf.
The headset is extremely robust advertised (loads of more than 1 ton), but a kid and a book in the backpack quickly showed his "weakness" on. The sound is of course not affected. I'll give him spendieren a textile bag, so I do not lead a walk soon the bare foam on his head.
Due to the "positive" experience with the customer service of Philips, it was for the time being the last product of this company. In this price range you can expect more here.