2009 Lexus RX 350 Navigation Manual - Page 176

AUDIO/VIDEO SYSTEM D DSP control You can change the listening position or turn on/off the automatic sound levelizer. 1. Push the "AUDIO" button. 3. Touch the desired button. "TREB" "+" or "-": Adjusts high−pitched tones. "MID" "+" or "-": Adjusts mid−pitched tones. "BASS" "+" or "-": Adjusts low−pitched tones. "FRONT" or "REAR": Adjusts sound balance between the front and rear speakers. "L" or "R": Adjusts sound balance between the left and right speakers. 4. Touch "OK". The tone of each mode (for such as AM, FM and DVD changer) can be adjusted. 2. Touch "DSP". Automatic sound levelizer (ASL): When the audio sound becomes difficult to hear due to road noise, wind noise or other noises while driving, touch "ON". The system adjusts to the optimum volume and tone quality according to the noise level. When the system is on, the sound adjustment level is displayed on the screen. Positioning selector: By selecting the listening position, the system controls the output timing of the speakers to allow sound to be heard evenly, creating the ideal music environment. Touching "CHANGE" switches the position in the following order: all seats, driver's seat, front seat, rear seat. The position currently selected is displayed on the screen. 196