Recalling The Stored Equalizer Curve; About The Crossover - Alpine CDA-9833 Owner's Manual

Recalling the Stored Equalizer Curve

1
Press and hold MENU for at least 2 seconds.
2
Press MENU to select USER EQ (USER'S EQ for
CDA-9833).
3
Press any one of the preset buttons (1 through
6) to activate your desired curve.
4
Press MENU to select RETURN.
The unit returns to normal mode.
Pressing and holding MENU for at least 2 seconds will
return to normal mode.
• EQ mode is automatically canceled if no operation is performed
within 15 seconds.
• This function is inoperable when DEFEAT is set to ON (page 14).
• You can recall the adjusted equalizer curve from "Equalizer Presets"
(page14).

About the Crossover

Crossover:
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.
2 way mode
Cut-off frequency
(1/3 octave steps)
HPF LPF
Low range 20 Hz -
----
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)
Slope
Level
HPF LPF
FLAT, 6,
12, 18, 0 to
----
−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
3 way mode
Cut-off frequency
(1/3 octave steps)
HPF LPF
Low range 20 Hz -
----
speaker 200 Hz
Mid range 20 Hz - 20 Hz -
speaker 200 Hz 20 kHz
1 kHz -
High range
----
20 kHz
speaker
1
* Only when selecting USER'S in "Setting the Response Slope
for the High Range Speaker (TW SETUP)" (page 25).
Low range
Mid range
(Different from actual display)
Level adjusting
(0 to - 12 dB)
Output frequency range
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, FLAT, 6,
0 to
12, 18, 12, 18,
−12 dB
24 dB/oct 24 dB/oct
FLAT* 1
0 to
----
6, 12, 18,
−12 dB
24 dB/oct
High range
Slope FLAT
Slope adjusting
(Different from actual display)
15
-EN