low volume, no enhancements tab to fix issue

Hello 

I have a Pavilion g6 HP laptop, running on windows 8. 

I am experiencing a problem with very low volume. How can I fix this? I have seen in previous questions that this response has worked for people:

Right click the speaker icon in the Taskbar and select 'Playback Devices'.  Left click the default device once to highlight it ( it's usually 'speakers & headphones' ) then click the Properties button.  Click the Enhancements tab and put a tick in the box next to 'Loudness Equalization'.  Click Apply to save the change and then click OK in all remaining windows and see if this has helped at all.

However, there is no enhancements tab on my system! Help!

Thanks