dv6-6b05et Beats audio panel working but sound doesn't change what I heard

Hi,

I upgrade my dv6-6b05et to Windows 8, I installed all drivers via, HP Support Asistant or Drivers and support page from HP site.

My problem is that, when I change beats sound property, you know that music, voice or movie, seems as changed but I heard sound is same. I'm playing bass treble center space or focus, but nothing changing. I heard everytime same sound style.

This is important for me, I think about to format my pc, and return to Windows 7 :(

I'm adding an image what I want to say, in twice of pic, I heard same sound, nothing changed.