I bought these headphones as a replacement for a DT-770 Pro. I really like the latter, but after using DT-770s for 7 years, I wanted to try something different.
Pros:
- The headphones are not too bulky and rather lightweight.
- The cable is replaceable! (This is important for me, as this is always the first thing to break)
- The sound is excellent! I would describe it as balanced, not as bass-heavy as the DT-770.
Cons:
- The DT-250 are still comfortable to wear, but I could wear the DT-770s for a longer period of time without feeling any strain.
- I don't like the curly cable, it gets in the way when e.g. playing guitar.
- The replaceable cable uses a proprietary connector on the headphone side.
- Isolation is not that good. For monitoring usage when recording drums, I would still prefer the DT-770s.
To summarize: overall I like these headphones, but the DT-770s are available for the same price (or less). In my opinion: buy the DT-250 if you don't like bulky headphones or prefer a more neutral sound-stage. If not: just buy the DT-770s!