Possible to disable for headphones but enable for speakers?

[zannix]

Hi! Loving your program, however a quick question - my Logitech speakers go to sleep after X time of no sound and that's something your program handles well.

However, when using my usb bluetooth headphones (via changing the windows playback device in bottom right corner), I'd actually like them to go to sleep as per default (to save battery).

Is it possible for program to detect playback device changes and only activate on speakers?