Buick 2005 LaCrosse Owner's Manual page 222

Setting the Tone (Bass/Treble)
e
(Bass/Treble): Push and release this knob until
BASS or TREB appears on the display. Turn this knob
to increase or to decrease. The display will show
the bass or the treble level. If a station is weak or noisy,
decrease the treble.
To adjust the bass and the treble to the middle position,
push and hold the tone knob. The radio will produce
one beep.
To adjust all tone and speaker controls to the middle
position, push and hold the tone knob when no tone or
speaker control is displayed. ALL CENTERED will
appear on the display and you will hear a beep.
EQ (Equalization): Press this button to select
customized equalization settings designed for
country/western, jazz, talk, pop, rock, classical,
and custom.
To return the bass and treble to the manual mode, push
and release the tone knob until BASS or TREBLE
appears on the display.
3-108
Adjusting the Speakers (Balance/Fade)
e
(Balance/Fade): To adjust the balance between
the right and the left speakers, push and release
this 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 between the front and the rear
speakers, push and release the speaker 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 the fade to the middle
position, push the speaker knob, then push it again and
hold it until you hear one beep.
To adjust all tone and speaker controls to the middle
position, push and hold the speaker knob when no tone
or speaker control is displayed. CEN will appear on
the display and you will hear a beep.