At first, I thought it would be an easy choice of HD 598. But after researching, I see people recommending A900x more. Is A900x superior to HD 598 in vocals/ballads specifically?
I also found that there's an open version of AD900x which I would assume to be better for vocals/ballads, but no one ever talks about these xD.
-Vocals, sound quality, sound stage (In order of importance)
-Genre/focus: Ballads/Vocal (A lot of Korean, Chinese, Japanese ballads if that matters)