Default Volume Boost


I'm on 4.4.3 (Android Revolution HD 10.2). I used to own Nexus 5 on which we could modify file \system\etc\mixer_paths.xml to increase volume of integrated amp

The same thing exists on several phones like for example

Could someone attach here its mixer_paths.xml and mixer_paths_auxpcm.xml ? I would like to compare to mine to see if i can manage to know which value affects the volume. Fauxsound can do it through an application but is not supported for the moment on 4.4.3

Thank you