About The Crossover; Display Setup; Display Setup Operation - Alpine ICS-X7HD Owner's Manual

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.
Cut-off frequency
(1/3 octave steps)
HPF LPF
20 Hz -
Low range
----
speaker
200 Hz
Rear high
20 Hz -
----
range
200 Hz
speaker
Front high
20 Hz -
range ----
200 Hz
speaker
Low range
(Different from actual display)
Level adjusting
Output frequency range
(0 to –12 dB)
20 Hz
HPF cut-off LPF cut-off
frequency frequency
• 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.
• You cannot adjust the crossover frequency higher than the HPF or
lower than the LPF.
• 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.
Slope
Level
HPF LPF
FLAT, –6,
0 to
---- –12, –18,
–12 dB
–24 dB/oct.
FLAT, –6,
0 to
–12, –18, ----
–12 dB
–24 dB/oct.
FLAT, –6,
0 to
–12, –18, ----
–12 dB
–24 dB/oct.
High range
Slope FLAT
Slope adjusting
(Different from actual display)

Display Setup

Display Setup Operation

To display the Display Setup Menu screen:
Your vehicle must be parked with the ignition key in the ACC or
ON position. To do this, follow the procedures below.
1 Bring your vehicle to a complete stop at a safe
location. Engage the parking brake.
2 Keep pushing the foot brake and release the parking
brake once then engage it again.
3 When the parking brake is engaged for the second
time, release the foot brake.
• For automatic transmission vehicles, place the transmission lever
in the Park position.
Now, the locking system for the Setup operation has been
released. Engaging the parking brake can reactivate the Display
Setup Menu, as long as the car's ignition has not been turned off.
It is not necessary to repeat the above procedure (1 through 3) of
"To display the Display Setup Menu screen."
Each time the ignition is turned OFF, perform the procedure of "To
display the Display Setup Menu screen."
The following steps 1 to 6 are common operations to each
"Setting item" of Display Setup. Refer to each section for
details.
1
Touch [Setup] on the Home screen.
The Setup main screen is displayed.
2
Touch [Display Setup].
The Display Setup screen appears.
• You can display the Display Setup screen from each application
screen. Touch [ Display] on any application screen (video
mode).
3
Touch the desired application.
• "Video" can be selected while a video is playing.
• The camera names set under the "AUX Camera" settings are
displayed. The camera names are not displayed when "Off" is
set (page 32).
4
Touch [ ] of the desired item.
Settable items differ depending on the application.
[Video] (Video media):
Display Mode / Live Contrast / Visual EQ / Bright / Color / Tint /
Contrast / Sharpness
[AUX Camera]:
Live Contrast / Bright / Color / Contrast
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