Disable audio limit

Hi

I have a Dell Precision T1700. It has Dell Audio, but a problem is it have audio limit which trying to prevent loud bass and treble. I have disabled EQ, Maxx Volume Pro, and everything in Dell audio, but it still limit the audio. it is annoying, and the music sounds bad. some sounds details are missing in Battlefield 4 game, due to the limit.

Is there a way to uninstall Dell audio or completely disable it?