Sound quality

Well, just about all the bluetooth headphones i have tested were plug and play. Is the sound quality settings in windows incompatable with bluetooth, does anyone know?

As for the equalizer, im already using dfx and im satisfied with it.

Anway, it seems like the option to change the sound quality settings are only available if you are using a soundcard. I can change them just fine if im using my onboard realtek soundcard, but if i plug in my bluetoothes headphones, the settings gets greyed out.

So, does anyone know how to change the sound quality settings if you are using bluetooth headphones?

If anyone knows how to fix it, please post it in this thread.