Got the Hifiman Deva recently and have to say that I am an ABSOLUTE fan now. Not only do they sound phenomenal (I really don't understand why it gets so much flack in YT reviews), but you're getting an insanely good package for the price. Open back and planar magnetic is completely new to me, so hearing external sounds is kind of weird but it totally makes sense to me, because this is how the sound is so great in my mind.
I'm obviously now really curious if I can make these sound even better now while maintaining the BT functionality. As a corded unit, there's no doubt that you can push it harder, but is there anything out there right now that I could potentially pair with these using BT to improve them?