Advanced Audio Properties - No Balance Bar / Slider for Headphones

[roughnecks]

Hi,

as the title says, I have balance bar only for my loudspeakers, while it's missing for my headphones.
Not going to use it anyway but I'm just curious as why?

Thanks

 

[roughnecks]

Nevermind, it just showed up!
I still had one device on "default" instead of the actual device name, so that could be it.