If you don't want open back headphones, this is truly one to consider.
While it's low-end might be more powerful than some, I think it fits these headphones just fine. The mids and highs will not be overpowered by the lows by any means(quite neutral sounding honestly) and I think the sound design in these all boils down to personal preference rather than quality.
Having had these for a couple years, they don't disappoint. I still prefer open back for a wider soundstage, but these will always have their use in certain environments, where there might be more distracting sounds on the outside and they keep those sounds out mighty fine.
They also are quite comfortable and as long as they aren't used without breaks, they will last you many years without wear and tear. Might feel a bit warm though, as they're quite isolating, so take your breaks every now and then.
While I mainly use my HD560s or HD598s for most things, especially gaming, the DT-770 Pro has it's uses in music production and in noisy environments without skimping on it's quality of sound.
Worth a buy if you're looking for closed backs for under 200 Euro.