Turning Subwoofer On/Off; Setting The Subwoofer Phase; Setting The Subwoofer System; External Device - Alpine CDE-177BT Owner's Manual

Turning Subwoofer ON/OFF

When the subwoofer is on, you can adjust the subwoofer output level
(refer to "Adjusting Subwoofer Level/Bass Level/Treble Level/Balance
(Between Left and Right)/Fader (Between Front and Rear)/Defeat" on
page 17).
 Setting item: SUBWOOFER
Setting contents:
ON (Initial setting) / OFF
ON:
The subwoofer signal is output from the Subwoofer RCA
Connectors (refer to "Connections" on page 49).
OFF:
No subwoofer signal is output from the Subwoofer RCA
Connectors (refer to "Connections" on page 49).

Setting the Subwoofer Phase

The subwoofer output phase is toggled SUBWOOFER NORMAL (0°) or
SUBWOOFER REVERSE (180°). Depending on the installation location
of your subwoofer, one of these settings may sound better than the other.
 Setting item: SUBW PHASE
Setting contents:
NORMAL (Initial setting) / REVERSE

Setting the Subwoofer System

When the subwoofer is on, you can select either SYSTEM 1 or SYSTEM
2 for the desired subwoofer effect.
 Setting item: SUBW SYS
Setting contents:
SYSTEM 1 / SYSTEM 2 (Initial setting)
SYSTEM 1:
Subwoofer level changes according to the main volume setting.
SYSTEM 2:
Subwoofer level change is different from the main volume setting.
For example, even at low volume settings, the subwoofer is still
audible.

External Device

Connecting to an External Amplifier (POWER IC)

When an external amplifier is connected, sound quality can be
improved by stopping the power supply of the built-in amplifier.
 Setting item: POWER IC
Setting contents:
ON (Initial setting) / OFF
ON:
The speakers are driven by the built-in amplifier.
OFF:
Use this mode when the line output of this unit is used to drive an
external amplifier. In this setting, the head unit's internal amplifier
is turned OFF and cannot drive speakers.
ON:
SPEAKER
RIGHT FRONT
SPEAKER
RIGHT REAR
SPEAKER
LEFT REAR
SPEAKER
LEFT FRONT
OFF:
Amplifier
Amplifier
Note
• No sound is produced by the system when the power output is set to
OFF.

Setting the Media Xpander mode

MX (Media Xpander) makes vocals or instruments sound distinct
regardless of the music source. The CD and iPod, etc. will be able to
reproduce the music clearly even in cars with a lot of road noise.
 Setting item: MX SETTING
1
Turn the Rotary encoder to select the source to which you
want to apply Media Xpander, and then press ENTER.
*
CD  CMPM  USB  IPOD  BT AUDIO  VTUNER 
AUX  CD
* Be applied for MP3/WMA/AAC files in disc.
2
Turn the Rotary encoder to select the Media Xpander
level, and then press ENTER.
OFF  LEVEL 1  LEVEL 2  LEVEL 3  CUSTOMIZE  OFF

Customizing the Media Xpander setting

If CUSTOMIZE is selected in step 2, you can modify the Media Xpander
to suit your personal preference.
3
Turn the Rotary encoder to select the Band, and then
press ENTER. BAND1 (Lower frequencies)  BAND3
(Higher Frequencies)
BAND1 (Bass)  BAND2 (Mid)  BAND3 (High)  BAND1 (Bass)
Speakers
Front
Right
Rear
Right
Rear
Left
Front
Left
Front
Left
Front
Right
Rear
Left
Rear
Right
19
-EN