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Language
OSD:
choose the desired language for the System Menu.
DVD Audio:
choose the desired language for DVD playback.
DVD Subtitle:
choose the desired language for DVD subtitles.
Disk Menu:
select the desired language for DVD Menu.
Audio
DRC:
set the DRC (dynamic range control) for better playback for low
volume playback: On (use bass to play the more dynamical audio), Off
(normal playback).
Chanel:
choose either 4CH Mode or 4.1CH Mode to make the subwoofer
output closed or opened.
Sub.W Phase:
choose either 0º or 180º to set the subwoofer IN or OUT
phase.
Sub Filter:
choose the subwoofer channel frequency according to the
acoustic surroundings of your car and your preferences.