Question about Beyerdynamic DT 990 Pro

80 Ohm works, but is still a little quieter than normal standard headphones. Pre-amplification is required for 250 ohms. The headphone input of an audio interface is normally sufficient; there are also other solutions.

80!

80 for the 250 you need a powered sound card. Enjoy ✌🏽

I don't know which is better, but I have the 80Ohm version and it works great :)