beyerdynamic DT 700 PRO X

I bought both this and DT770 PRO for comparison and I can say both of these are stunningly well built headphones. I was so sad that I had to return the DT700 PRO X's despite its sleek design and super new features. The reason was that they got very uncomfortable after ~1 hour of listening. I knew Beyerdynamic headphones might not be super comfy for everyone and the clamping force would loosen in time, but it was worse than what I expected. Seems like the DT770 PROs work better with the shape of my head.

At first, I tried 770 pro x. Same drivers, different tuning and housing.

After 4 days of testing, for me- the treble was too harsh and after trying to play with eq, paper mod and audio interface I still couldn't listen to them for more than 1 hour. Just didn't suit me, but overall comfort was great and better than 700 pro x, that's the only minus for me, for now.
Sound, more premium feeling, design, earpads and second cable- all of these are big pro's for 700.
Overall- really enjoying these. EQ'd them for my taste, added some lows and got a feeling- that is exactly what I was looking for.
If you are sensible to treble and deciding between the two- get these asap.

Thankfully, Thomann provided me an excellent service and quick return of 770 and new shipment of 700. Amazing work.

tldr: Pretty good headset for what it is and a price tag, clamping force on my head will get looser and then they will be 10/10

The headset is really good quality, they even include two cables in case something happens to one of them which is very nice. There are couple of things I don't like about it, but given it's price I think it's really a good headset.

First issue is that the headset has cables connecting it to the earcup, which makes it feel really fragile, especially since the cable don't feel very durable. It feels like something might happen at any point.

The headset fits my ears but I think the circle design is not a good idea as the enclosed part leaves some part of the ear hanging (not covered) and some parts of it covered giving a weird feeling after switching from hd600 which covers my ears perfectly. If I had a bit bigger ears I think it would hurt as well, so it's probably not suitable for every person.

One would also want to put an EQ for this if they are a picky listener or an compositor. The main thing I don't like about it's tuning is how much it dips down at around 4k frequency. I feel like it's a bit too opinionated and on certain types of musics it becomes really obvious and doesn't feel natural. It sounds like someone did put an EQ over the original recording (But this is just my opinion maybe there are people who prefer the sound to be that way.)

I think DT 700 PRO X is a good portable high quality headset, I plan on using this when I go to trips as it only requires 48 ohms which makes it suitable to connect it to a PC or phone directly, unlike HD600 which requires 300 ohms. It also has closed back design so it has much better sound isolation outside. So I would say HD600 for more accurate and natural sounds, and HD 700 PRO X for portable design with good sound isolation.