2009 Toyota Matrix Owners Manual - Page 164

3-2. Using the audio system n Adjusting sound quality Turning adjusts the level. Mode displayed BAS*1 MID*1,*2 TRE*1 FAD Sound quality mode Bass Midrange Treble Front/rear volume balance Left/right volume balance Level -5 to 5 -5 to 5 -5 to 5 F7 to R7 Turn to the left Turn to the right Low High Shifts to rear Shifts to front BAL *1:The L7 to R7 Shifts to left Shifts to right sound quality level is adjusted individually in each radio mode or CD mode. brand audio system *2:JBL n Adjusting the Automatic Sound Levelizer (ASL) Except JBL brand audio system When "ASL" is selected, turning to the right changes the "ASL" level in the order of "LOW", "MID" and "HIGH". Turning to the left turns "ASL" off. ASL automatically adjusts the volume and tone quality according to vehicle speed. 194