Mohannad13For gaming, no? Just get the PC37x - You won't notice a huge difference with directional sound when it comes to gaming in regards to the 6xx or DT990 that will give you an advantage. The built in mic with auto mute when sliding it up is so useful.
Sounds is just one thing.. Awareness is another huge factor when it comes to gaming :) I used low/mid tier headphones for about 10-15+ years and it's not that big of a difference.
Senn PC150/350se
HD598
Logitech G430
Hyper Cloud II's
SteelSeries 5H V2
If anything get the 6xx to add to your music collection, but I feel like your he 4xx covers that since it has more bass response and sounds more fun. I really want those to drop again!
Mohannad13The sound is not going to beat your audiophile gear, but the gaming features it has packed in is what makes this a worthy buy, especially for gamers. The mic+mute, the positional audio (not bad) and the volume adjuster are things that aren't found on the 6XX or 990.