Share your experience!
Hi carlosbk3
you can try this
>settings -> sound -> check 'xLOUD' option and there is an option of Volumes, adjust as per your requirement, restart the phone and check
>try to play different musiq and check whether it plays same audio quality for all or try with different earpiece
let us know
Manjuboyz 
NOTE:
Rate me(Kudos) If you are happy with my Resolution, Thanks 
Carlosbk3
you can try to restore the phone once, any software glitches will be fixed by doing this, make sure you keep backup of data before doing it
Manjuboyz 
NOTE:
Rate me(Kudos) If you are happy with my Resolution, Thanks 