They’re planar headphones alright. They are absolutely amazing. Vocals, sound stage, instruments, bass, all perfect for me. I connected them to my SA420 so I can adjust the bass (for the heck of it) and they basically turned in Beats by Dre. They’ll play anything and it’ll sound great.
A song I discovered for testing vocals and sound stage is “Lover, Please Stay” the live version by Nothing But Thieves. I’ve been with opera singers when they go full throttle on the volume and you can feel it in your head. These headphones are the only thing that have ever replicated that feeling. Not even JBL 4311’s can do it.