Alpine INE-W977HD Owner's Manual

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You can adjust the receive volume, during the call.
Setting item:
Ring Tone Level
Setting contents:
1 to 6 (Initial setting: 3)
You can change the volume of the sound heard when a button is 
touched. 
Setting item:
Key Sound Feedback
Setting contents:
0 to 6 (Initial setting: 3)
The sound can be muted when the shift gear lever is set to the reverse 
(R) position enabling you to easily hear sensors, etc., while reversing 
your car.
Setting item:
Mute While Backing Up
Setting contents:
Off / On (Initial setting)
Set this item when an iPhone 5 or later/Android smartphone with 
Android Auto App is connected.
You can turn on or off the Microphone Effect.
This setting influences Apple CarPlay/Android Auto mode.
Setting item: 
Microphone EC / NR
Setting contents: 
On (Initial setting:) / Off
You can restore the Dual HD EQ*/X-Over*/Time Correction*/MX HD 
Level/Rear Speaker/Subwoofer/Subwoofer Level/Subwoofer Phase to 
factory settings.
Setting item: 
Default Sound Settings
Touch [Set], and the confirmation message appears.
To initialize, touch [OK].
*
The setting values that are stored in Preset 1 to Preset 3 cannot be 
initialized.
About the Crossover
Crossover (X-Over):
This unit is equipped with an active crossover. The crossover limits the 
frequencies delivered to the outputs. Each channel is controlled 
independently. Thus, each speaker pair can be driven by the frequencies 
for which they have been optimally designed.
The crossover adjusts the HPF (high pass filter) or LPF (low pass filter) 
of each band, and also the slope (how fast the filter rolls off the highs or 
lows).
Adjustments should be made according to the reproduction 
characteristics of the speakers. Depending on the speakers, a passive 
network may not be necessary. If you are unsure about this point, please 
consult your authorized Alpine dealer.
• HPF (high pass filter): Cuts the lower frequencies and allows the higher 
frequencies to pass.
• LPF (low pass filter): Cuts the higher frequencies and allows the lower 
frequencies to pass.
• Slope: The level change (in dB) for a frequency change of one octave.
• The higher the slope value, the steeper the slope becomes.
• Adjust the slope to FLAT to bypass the HP or LP filters.
• Do not use a tweeter without the HPF on or set to a low frequency, as it 
may cause damage to the speaker due to the low frequency content.
• Adjustment should be made according to the recommended crossover 
frequency of the connected speakers. Determine the recommended 
crossover frequency of the speakers. Adjusting to a frequency range 
outside that recommended may cause damage to the speakers.
For the recommended crossover frequencies of Alpine speakers, refer to 
the respective Owner’s Manual. 
We are not responsible for damage or malfunction of speakers caused by 
using the crossover outside the recommended value.
Adjusting the Ring Tone Level
Volume Setting
Setting Audio Mute On/Off while Backing up
Off:
Does not mute.
On:
Mutes when the shift gear lever is set to the reverse (R) 
position.
Setting the Microphone Effect
Default Sound Settings
Cut-off frequency 
(1/3 octave steps)
Slope
Level
HPF
LPF
HPF
LPF
Subwoofer
(LPF)
----
20 Hz - 
200 Hz
----
0, 6, 12, 18, 
24 dB/oct.
0 to
–12 dB
Rear
speaker
(HPF)
20 Hz - 
200 Hz
----
0, 6, 12, 18, 
24 dB/oct.
----
0 to
–12 dB
Front
speaker
(HPF)
20 Hz - 
200 Hz
----
0, 6, 12, 18, 
24 dB/oct.
----
0 to
–12 dB
Level 
adjusting
(0 to –12 dB)
Output frequency 
range
Output frequency range
Slope adjusting
20 Hz 
(Different from actual 
display)
LPF cut-off 
frequency
HPF cut-off 
frequency
Low range
High range
Slope 
FLAT
Subwoofer
Rear speaker
Front speaker
200 Hz