Default [Q] Volume Increase VIA Mixer Paths

was looking around mixer_paths.xml and i see it has changed from what i'm used to with the lg g2. i dont see a section that specifically has "headphones". i'm trying to increase the headphone volume. does anyone know which area of the mixer_paths needs to be changed to increase volume? i tried increasing "speaker and headphones" rx7 (because that's what was used to increase volume on the g2) but after a reboot i dont notice any increase. any help would be appreciated.
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