Probably a dumb question from probably a dumb person!

I have a UR22 MKII and recently purchased a pair of headphones. Not knowing any better I bought a pair of BeyerDynamic DT990 Pro 250 Ohm. Does the ‘250 Ohm’ mean that there’s not enough power in my UR22 to power these headphones properly? If so, what do I need to do to get the best from these headphones?

You have both… try it for you… is it loud enough? Then there is no issue… if it’s not loud enough you can still buy other headphones…

but as mentioned many times in this forum and on other places
yes indeed 250 Ohm headphones are lower in volume on some headphone amps
but to say they are “too low” in general is simply wrong… it depends on their overall performance, some 250 Ohm headphones are pretty loud, like the DT770Pro.

The volume seems fine, so I suppose everything is OK.
Thanks for your response - much appreciated