New owner of the HD6xx’s here - I’ve seen a lot of comments around this sub saying “stop here” before you condemn yourself to an endless rabbit hole of cans.
Should I take this advice and stop at these? Are there any audiophile headphones that are truly worth an upgrade?
Depennds on your taste and preferences. You can do better for electronic music, dance, hip-hop etc.
They are hard to beat for vocals and music that is just recordings of instruments played in a space.