Alpine CDA-9815RB - Manual (Page 22)

20
-EN
Adjusting and Storing the Crossover
Settings (CDA-9815RB/CDA-9813R only)
Before performing the following procedures, refer to “About the
Crossover” (Page 19).
1
Press and hold T.CORR/X-OVER for at least 2
seconds.
2 WAY System
2
Press BAND/TEL. to select desired parameter.
LOW (Subwoofer) → REAR → FRONT → LOW (Subwoofer)
3
Press g or f to select desired cut-off
frequency point (crossover point).
Adjustable frequency bands: 20Hz to 200Hz (in 1/3
octave steps)
4
Press SOURCE/POWER to select desired slope.
Adjustable slope: 0 (FLAT (OFF)), 1 (-6dB/oct), 2 (-12dB/
oct), 3 (-18dB/oct), 4 (-24dB/oct).
5
Turn the Rotary encoder to select the desired
output level.
Adjustable output level: -12 to 0 dB.
To store the adjusted contents
1) Press and hold any one of the preset buttons (1
through 6) for at least 2 seconds into which you wish to
store the adjusted contents.
6
For setting another channel, repeat the steps 2 to
5.
7
After setting, press T.CORR/X-OVER to return to
normal mode.
• Crossover mode is automatically cancelled if no operation is
performed within 15 seconds.
3 WAY System
2
Press BAND/TEL. to select desired parameter.
LOW → MID-L → MID-H → HIGH (HI) → LOW
3 3
Press g or f to select desired cut-off
frequency point (crossover point).
Adjustable frequency bands:
LOW : 20Hz to 200Hz (in 1/3 octave steps)
MID-L : 20Hz to 200Hz (in 1/3 octave steps)
MID-H : 20Hz to 20kHz (in 1/3 octave steps)
HIGH
: 1kHz to 20kHz (in 1/3 octave steps)
4
Press SOURCE/POWER to select the desired
slope.
Adjustable slope: 0 (FLAT* (OFF)), 1 (-6dB/oct), 2 (-12dB/
oct), 3 (-18dB/oct), 4 (-24dB/oct).
* FLAT cannot be set for the HIGH slope.
5
Turn the Rotary encoder to select the desired
output level.
Adjustable output level: -12 to 0 dB.
• 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.
3 way mode
Output frequency range
LPF cut-off
frequency HPF cut-off
frequency
Level adjusting
(0 to - 12 dB)
Slope adjusting
20 Hz (Different from actual display)
Slope FLAT
Low range
speaker
Mid range
speaker
High range
speaker
20 Hz -
200 Hz
20 Hz -
20 kHz
----
----
FLAT, −6,
−12, −18,
−24 dB/
oct
−6, −12,
−18, −24
dB/oct
FLAT, −6,
−12, −18,
−24 dB/
oct
FLAT, −6,
−12, −18,
−24 dB/
oct
----
0 to
−12 dB
0 to
−12 dB
0 to
−12 dB
----
20 Hz -
200 Hz
1 kHz -
20 kHz
Cut-off frequency
(1/3 octave steps)
Slope
Level
HPF LPF HPF LPF
(Different from actual display)
Low range High range Mid range