I think I had the same thing with the Arya Stealths. While playing music there was something that just did not feel right at all and after a while I’d have ringing in my ears. I had to return them which was a shame because I liked them otherwise.
For what it’s worth, this problem is completely gone for me in the Arya Organics. They are currently my favorite headphones, by far. I have a lot of hours of head time with the Organics now and a large portion of that is listening to metal of various sub-genres. If I was gonna get ear ringing or discomfort with these, it’d have happened by now. And it hasn’t.