DT990 Pro 250 Ohm

I make simple videos for different youtube channels, about games. I have been scouring the forums here for an answer to the above, and have gotten many, many varying responses. I want to ensure get the best sound quality for the low price as well as ensuring they can drive my DT-990 Pro...

I want a good sounding headset so the DT990 pro is the best i found for the price and same with the Sound Blaster X-Fi HD. Will this amp make the 990s sound better and is it a good amp?