Any sound mods that really work?

I have h811 and the title speaks for itself. Out there are 3 promising sound mods and would like to see which one of the three you have tried and or actually still use as well. XtremeMusic mod, eXtremebeats, and Project Desire mod. What noticeable differences have you noticed? Comparisons between any of the three with the current mod you are using? Please don't be recommending me viper4android for I have heard and read so much about it and tried as well. Thanks everyone