Managed to put the AudioX settings into a flashable CWM.zip file.
Attached is the newest version which I have currently installed:
Disable Tru Bass effect.
Limiter set to 0.150 instead of 0.250
SRS3D Set space to 0.5 instead of 0.800
I decided to leave some of the limiter since having an uncompressed signal can harm the physical speaker.
This tweak means louder speaker output and no Trubass effect which is by default boosting the 400Hz area.
WARNING: I do not take any responsibility for broken speakers etc. When I tried the original edits the volume was so loud the speaker made some crackle noises. If you keep that volume level chances are you will destroy the speaker and then it will crackle even at lower volumes. The new version does have a softer limiter and the volume levels are good so I think the speaker is not in danger.
Attached is the AudioX.zip cwm installable and the Default_Audio_Settings.zip installable. If you don't like the result simply flash the second zip.
All the best