User manual
CRYSTALCUBE—User Manual 
Audio 
Press the Menu button to open the OSD menu. Press ◄► to move to the Settings 1 menu. Press 
▼▲ to move to the Audio menu and then press Enter or ►. Press ▼▲ to move up and down in the 
Audio menu. 
ITEM  DESCRIPTION 
Volume  Press the cursor ◄► button to enter and adjust the audio volume. 
Mute  Press the cursor ◄► button to enter and turn on or off the audio out put. 
SRS  Press the cursor ◄► button to enter and turn on or off the audio surround. 
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