Is it possible, with root to ENTIRELY disable that speaker, possibly through a balance adjustment. It would be *preferable* if this balance adjustment only applied to the speakers and not the headphone jack.
I don't want to know about PowerAMP, because the primary problem is YouTube videos, and notifications (and everything else that PowerAMP isn't).
You can easily do this on apple devices, through the accessibility settings, then speaker balance.
I know about the guide for the ASUS transformer, I can't find the file (