Make sure you get the model you want. I purchased the 250 ohm version twice and returned it twice. The bass was so overbearing. I am much happier with the 80 ohm and will be keeping them.
The bass is probably the only thing I truly enjoy on my DT770 250 ohm, without applying any EQ.
I have the 250ohm and love it. nice bass and it just seems that the 250 ohm version would bring down the treble. more refined. but i love a lot of bass sometimes