Volume booster for headphones/ not speaker


So I want to boost the music volume in headphones but not speakers. It's two different things.
I used some extensions, but no one worked. In speakers, I can maximize from 50% to 500%, but when I connect the headphones, the maximum I can get is 100% as much as I change the per cent of volume boost.

Any help or clues?

  • I asked it also in Kodular only because I love both platforms(MIT & Kodular) :slight_smile: *

Well, different hearing devices have different max volumes. I don't think an extension could do that, because even the user can't change it...