DT770pro/80 is a bit boomy and sometimes tizzy compared to the m50s. I see in your sig line you have a pair of AT-M50s. m50s have a tighter, more accurate bass. They might dip down lower than the 770s, but the 770pros have a way of sending across the illusion of a larger bass quantity, as well as, a larger soundstage.
The DT770pro/80s work really well with movies, TV, and games. I really enjoy them when I want to watch something late at night. Honestly, for music it begins to become pretty obvious how hard they are trying to have deep bass and wide soundstage, it can get distracting. The m50s clearly win here... (I have both of these headphones, and while I like them both, one is not really an upgrade over the other, though I would rather watch movies with the m50s than listen to music with only the 770pro/80s.) It is hard to justify the 770pros, though it's problems seem to come from a lack of dampening in the cups. I think if I properly damped the cups inside, they would improve significantly.
It might be worth looking at another headphone in this pricerange, unless you are truly wanting a Beyer model and only a Beyerdynamic model.
