2009 Chevrolet Suburban Owner's Manual - Page 278

Setting the Tone (Bass/Midrange/Treble) BASS/MID/TREB (Bass, Midrange, or Treble): To adjust bass, midrange, or treble, press the f knob until the tone control labels display. Continue pressing to highlight the desired label, or press the pushbutton positioned under the desired label. Turn the f knob clockwise or counterclockwise to adjust the highlighted setting. Adjust the highlighted setting by pressing either SEEK arrow, \ FWD (forward), or s REV (reverse) button until the desired levels are obtained. If a station's frequency is weak or if there is static, decrease the treble. To quickly adjust bass, midrange, or treble to the middle position, press the pushbutton positioned under the BASS, MID, or TREB label for more than two seconds. A beep sounds and the level adjusts to the middle position. To quickly adjust all tone and speaker controls to the middle position, press the f knob for more than two seconds. EQ (Equalization): Press this button to choose bass and treble equalization settings designed for different types of music. The choices are pop, rock, country, talk, jazz, and classical. Selecting MANUAL or changing bass or treble, returns the EQ to the manual bass and treble settings. 3-90 Unique EQ settings can be saved for each source. If the radio has a Bose® audio system, the EQ settings are either MANUAL or TALK. Digital Signal Processing (DSP): Press the EQ button to change the DSP settings (only available on Bose® systems with the LTZ option package). DSP settings provide a choice of different listening experiences. The following DSP settings are available: • Normal - Select this setting to adjust the audio for normal mode. This provides the best sound quality for all seating positions. • Driver - Select this setting to adjust the audio for the driver to receive the best possible sound quality. • Rear - Select this setting to adjust the audio for • the rear seat passengers to receive the best possible sound quality. Surround (Centerpoint®) - Select this setting to enable Bose Centerpoint®. Centerpoint® signal processing produces a surround sound listening experience from a CD or XM stereo digital audio source. Centerpoint® delivers five independent audio channels from conventional two channel stereo recordings. (Not available for AM or FM.)