DT-990 Pro : Best Headphones I've ever tried

Having owned a lot of different (studio & non-studio) headphones over the years and using them for different things (mixing, listening & playing guitar) I can honestly say that I've never tried better headphones for playing guitar through and amp and mixing.

The open back provides a lot of clarity & the soundscape is enormous. You can hear every bit of background noise though so keep this in mind, these are headphones for quiet areas, like studios.

If you want something with a bit more protection against outside noise I'd go for the DT-770.

The 250 Ohm impedance might deter you from going for this instead of the 770 with 80 Ohm, but I didn't even have any issues with driving these headphones through my Oneplus 6 3.5mm jack. These days a lot of devices have built-in soundcards capable of pushing enough power through.

The cups are very soft and large enough even for big ears. They can get a bit warm, but nothing uncomfortable, even in 25 degree weather. The weight is also distributed in such a nice way that I don't feel it at all, even after 4-5 hours of non-stop use. The clamp keeps it in place even when bending down.