Setting The Treble Control; Adjusting The High Pass Filter; Turning Loudness On/Off - Alpine CDE-9881R Owner's Manual

Setting the Bass Centre Frequency
2
-1 Press BAND/TA to select the desired bass centre
frequency.
80 Hz 100 Hz 200 Hz
Emphasizes the displayed bass frequency ranges.
Setting the Bass Bandwidth
2
-2 Press SOURCE/ to select the desired bass
bandwidth.
Changes the boosted bass bandwidth to wide or narrow. A
wider setting will boost a wide range of frequencies above
and below the centre frequency. A narrower setting will
boost only frequencies near the centre frequency.
Setting the Bass Level
2
1
-3 Turn the Rotary encoder to select the desired
*
bass level (–7~+7).
You can emphasize or weaken the bass level.
3
Press and hold /ESC for at least 2 seconds to
return to normal mode.
• If no operation is performed for 15 seconds, the unit will return to
normal mode automatically.
• The bass level settings will be individually memorized for each
source (FM, MW (LW), CD, etc.) until the setting is changed. The
bass frequency and bass bandwidth settings adjusted for one source
are effective for all other sources (FM, MW (LW), CD etc.).
• The function is inoperable when DEFEAT is set to ON.
1
* The adjustment can also be made by pressing AUDIO/RTN. Refer to
"Adjusting Bass/Treble/Balance (Between Left and Right)/Fader
(Between Front and Rear)/Defeat" (page 14).

Setting the Treble Control

You can change the Treble Frequency emphasis to create your own tonal
preference.
1
Press A.SEL repeatedly to select the TREBLE mode.
BASS TREBLE HPF
Setting the Treble Centre Frequency
2
-1 Press BAND/TA to select the desired treble centre
frequency.
10.0 kHz 12.5 kHz 15.0 kHz
Emphasizes the displayed treble frequency ranges.
60 Hz 80 Hz
BASS
17.5 kHz 10.0 kHz
Setting the Treble Level
2
2
-2 Turn the Rotary encoder to select the desired
*
treble level (–7~+7).
You can emphasize the treble level.
3
Press and hold /ESC for at least 2 seconds to
return to normal mode.
• If no operation is performed for 15 seconds, the unit will return to
normal mode automatically.
• The treble level settings will be individually memorized for each
source (FM, MW (LW), CD, etc.) until the setting is changed. The
Treble frequency settings adjusted for one source are effective for all
other sources (FM, MW (LW), CD, etc.).
• The function is inoperable when DEFEAT is set to ON.
2
* The adjustment can also be made by pressing AUDIO/RTN. Refer to
"Adjusting Bass/Treble/Balance (Between Left and Right)/Fader
(Between Front and Rear)/Defeat" (page 14).

Adjusting the High Pass Filter

The High Pass Filter on this unit can be adjusted to suit your personal
taste.
1
Press A.SEL repeatedly to select the HPF mode.
BASS TREBLE HPF
2
Turn the Rotary encoder to select the desired HPF
frequency.
OFF 80 Hz 120 Hz
3
Press and hold /ESC for at least 2 seconds to
return to normal mode.
• If no operation is performed for 15 seconds, the unit will return to
normal mode automatically.
• The function is inoperable when DEFEAT is set to ON.

Turning Loudness On/Off

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.
Press and hold AUDIO/RTN/LOUD for at least 2
seconds to activate or deactivate the loudness mode.
• The function is inoperable when DEFEAT is set to ON.
BASS
160 Hz
15
-EN