I am currently looking at some new headphones for gaming and I was looking for some recommendations. The ones I have reading reviews on are the AD900x, DT990/770 pro 250 ohm, Q701, and Sony MDR-V6. The headphones will also be used for things like music and movies. The type of music I listen to is Electric swing, rap, hip-hop, pop, and alternative. the headphones will be used for comp games like, CS:GO, Squad, insurgency, for casual games Subnautica, Binding of Isaac: Rebirth, and The Long Dark. I understand for headphones that have a high Impedance I will more than likely need a amplifier to get the most out of the headphones and I am willing to buy one a little down the road. Also what is the difference between the ad700x and 900x? If you have any other headphones you recommend I look at I would appreciate it if they weren't over $300. also If you have any Amplifier recommendations feel free to leave that as well