It's common sense that the louder the volume, the more distortions you'll get
The ultimate edition is bound to have major distortions. You either not notice much of a difference from the other 2 versions, or go loud and notice major distortions on ultimate one.
Not even our powerful TFA9887 can handle ultimate edition without distortions... I just made it for the sake of people who wants it louder.
EDIT: Jesus, it seems like no one can be happy for this mod... Hell, at least I made a damn speaker volume boost mod...