Chevrolet 2007 Silverado 1500 Pickup Owner's Manual page 294

To store an equalization setting to a preset station
perform the following:
1. Tune to the preset station.
2. Press and release the AUTO EQ button to
select the equalization setting.
Once the equalization no longer appears on
the display, the equalization will be set for that
preset station.
Setting the Tone (Bass/Treble)
AUDIO: Push and release the AUDIO knob until
BASS or TREB (treble) appears on the display.
Turn the knob to increase or to decrease.
The display will show the bass or treble level. If a
station is weak or noisy, decrease the treble.
To adjust the bass or treble to the middle position,
while it is displayed, push and hold the AUDIO
knob. The radio will produce one beep and adjust
the display level to the middle position.
To adjust all tone and speaker controls to the
middle position, push and hold the AUDIO knob
when no tone or speaker control is displayed. ALL
CENTERED will appear on the display, you will
hear a beep, and the display level will be adjusted
to the middle position.
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AUTO EQ (Automatic Equalization): Press this
button to select customized equalization settings
designed for country/western, jazz, talk, pop, rock,
and classical. Selecting CUSTOM or changing
bass or treble, returns the EQ to the manual bass
and treble settings.
The radio will save separate AUTO EQ settings
for each preset and source.
If the radio is equipped with the Bose
system, the equalization settings are either
CUSTOM or TALK.
Adjusting the Speakers (Balance/Fade)
AUDIO: To adjust the balance between the
right and the left speakers, push and release the
AUDIO knob until BAL (balance) appears on
the display. Turn the knob to move the sound
toward the right or the left speakers.
To adjust the fade between the front and the rear
speakers, push and release the AUDIO knob
until FADE appears on the display. Turn the knob
to move the sound toward the front or the rear
speakers.
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