I'm talking about egg shape headphones. Arya Stealth have noticeably better dynamics than XS and especially Ananda.

Compared to other cans like HE6 yeah Arya SE falls short. They have this atmospheric bass. You don't get direct pressurized hit from earcups, you get a soft hit from somewhere in the soundstage. But SE have this fast transient-y punchy bass unlike XS and Ananda. Ananda is completely flat in my book. It's dynamics so bad that it almost breaks the headphone. XS is fine but it doesn't have the immediacy of Arya SE. XS bass sound kinda bigger and looser, leaves more linger in the stage.