SOUNDSelect to enter the SOUND submenu. Press "Up/Down" key on the remote control or the key "CH+/CH-" on the frontpanel to choose what you need. Press the "Left / Right" key on the remote control or the "VOL+/VOL-" key on the frontpanel to adjust analog value or state (see below table).Special Attention1. Normally, 50 value of adjustment is recommended;2. The treble or bass analog value which is adjusted by theusers will be saved as the personal mode by the machineRemote Control Shortcut KeysSMART S: Press SMART S key on the remote control. You canswitch the function among thePERSONALMUTE: Open or close sound.VOL+/VOL-: Add or reduce volume., "STANDARD","NEWS", "MUSIC"," " four modes.5 05 05 0B A S ST R E B L EB A L A N C ES O U N D M O D E S TA N D A R DS O U N DS E L A D J M E N U E X I TOption Function DescriptionBALANCE Adjust balance of left or right soundIncreasing analog value increases treble;Decreasing analog value decreases treble (0-100).TREBLE Adjust treble valueIncreasing analog value increases bass;Decreasing analog value decreases bass (0-100).BASS Adjust bass valueIncreasing analog value decreasing left volume;Decreasing analog value decreases right volume(0-100)."STANDARD", "NEWS", "MUSIC", "PERSONAL" four modes.Adjust audio effect modeSOUND MODE23