Setting The Tone; Adjusting The Speakers - GMC 2003 Envoy XL Owner's Manual

Setting the Tone (BassTTreble)
AUDIO: Press and release the AUDIO knob until BASS
or TREB 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, you may
want to decrease the treble.
To adjust the bass and treble to the middle position,
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. The radio will produce
one beep and display ALL with the level display in
the middle position.
AUTO TONE (Automatic Tone): Press this button to
choose bass and treble equalization settings designed
for country/western, jazz, talk, pop, rock and classical
stations.
Adjusting the Speakers (Balance/Fade)
AUDIO: To adjust the balance to the right and the
left speakers, push and release the AUDIO knob until
BAL appears on the display. Turn the knob to move the
sound toward the right or the left speakers.
To adjust the fade to 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.
To adjust the balance and fade to the middle position,
push the AUDIO knob then push it again and hold it until
the radio produces one beep. The balance and fade
will be adjusted to the middle position and the display
will show the speaker balance.
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. The radio will produce
one beep and display ALL with the level display in
the middle position.
To return the bass and treble to the manual mode,
press and release the AUDIO knob.
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