Alpine cdm-7857 Car Stereo System User Manual


 
5-EN
Audio Mute Function
Activating this function will instantly lower the
volume level by 20 dB.
1 Press the MUTE button to activate the MUTE
mode. The audio level will decrease by about
20 dB.
Pressing the MUTE button again will bring the
audio back to its previous level.
BBE Mode On/Off
(CDM-7857/CDM-7854 only)
The BBE (Barcus Berry Electronics) processor
installed in this unit is designed to correct the
phase distortion inherent in most loudspeaker
designs. Ensuring the phase integrity of the signal
driving the speakers improves the accurate
reproduction of the sound.
1 Press and hold the BBE button for at least 2
seconds to turn on the BBE mode.
Each press toggles between the BBE on and off
modes.
Setting Bass Frequency
The bass control center frequency can be set at
60, 80, 100 or 200 Hz.
1 Press and hold the B.C. (Bass Control) button
for at least 3 seconds to turn on the bass control
settings.
2 Press the DN g or the f UP button to
select the desired Bass center frequency.
Each press changes the center frequency as
follows: 60 Hz, 80 Hz, 100 Hz and 200 Hz.
NOTE
If no buttons are pressed within 5 seconds, the bass
control settings will be turned off automatically.
3 Press the B.C. (Bass Control) button for more
than 3 seconds to turn off the bass control
settings.
Subwoofer On and Off (CDM-7857/
CDM-7854 only)
1 Press and hold the c(Eject) button for at least 3
seconds.
With each press, subwoofer is toggled On or Off.
NOTES
Initial mode is "Subwoofer OFF."
Set to "Subwoofer OFF" unless the subwoofer is used.
When the subwoofer is turned on, the subwoofer
output level can be adjusted. For more details, refer to
the Adjusting Volume/Bass/Treble/Balance/Fader.
Adjusting Volume/Bass/Treble/
Balance (Between Left and Right)/
Fader (Between Front and Rear)
1 Press the MODE button repeatedly to choose
the desired mode.
Each press changes the modes as follows:
NOTES
If the 5 or 6 button is not pressed in 5 seconds after
selecting the BASS, TREBLE, BALANCE, or FADER
mode, the unit automatically sets in the VOLUME
mode.
When the subwoofer is set to ON, the level of the
subwoofer can be adjusted (CDM-7857/CDM-7854
only).
2 Press the
55
55
5 and
66
66
6 buttons until the desired
sound is obtained in each mode.
NOTE
The settings of the Bass and Treble will be individually
memorized for each source (FM, AM and CD) until the
setting is changed. Depending on the connected devices,
some functions and display indications do not work.
Turning Loudness On/Off
(CDE-7853 only)
Loudness introduces a special low- and high-
frequency emphasis at low listening levels. This
compensates for the ear's decreased sensitivity to
bass and treble sound.
1 Press and hold the LOUD button for at least
2 seconds to activate or deactivate the loudness
mode.
The display shows "LOUD" when the loudness
mode is activated.
VOL BAS TRE
FAD BAL