About The Crossover - Alpine CDE-196DAB Owner's Manual

Time
Delay
Difference
Number
(msec)
93 9.3
94 9.4
95 9.5
96 9.6
97 9.7
98 9.8
99 9.9

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.
2WAY mode
Cut-off frequency
(1/3 octave steps)
HPF LPF
Low
20 Hz -
range ----
200 Hz
speaker
Rear
high 20 Hz -
----
range 200 Hz
speaker
Front
high 20 Hz -
----
range 200 Hz
speaker
Low range
(Different from actual display)
24
-EN
Distance Distance
(cm) (inch)
316.2 124.6
319.6 126.0
323.0 127.3
326.4 128.6
329.8 130.0
333.2 131.3
336.6 132.7
Slope
Level
HPF LPF
FLAT,
6, 12, 18, 0 to
----
24 −12 dB
dB/oct.
FLAT,
6, 12, 18, 0 to
----
24 −12 dB
dB/oct.
FLAT,
6, 12, 18, 0 to
----
24 −12 dB
dB/oct.
High range
3WAY mode
Cut-off frequency
(1/3 octave steps)
HPF LPF
Low
20 Hz -
range ----
800 Hz
speaker
Mid
20 Hz - 20 Hz -
range
800 Hz 20 kHz
speaker
High
1 kHz -
range ----
*
20 kHz
speaker
* Depending on the response characteristics of the speaker, care should
be taken when setting the response slope of the high range speaker to
FLAT in 3WAY mode, as speaker damage may result (page 25).
Low range Mid range
(Different from actual display)
Level adjusting
(0 to −12 dB)
Output frequency range
20 Hz
HPF cut-off
frequency
Notes
• 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, 12, 18,
----
24 −12 dB
dB/oct.
FLAT,
FLAT,
6, 12, 18,
6, 12
24 −12 dB
dB/oct.
dB/oct.
FLAT,
6, 12, 18,
----
24 −12 dB
dB/oct.
High range
Slope FLAT
Slope adjusting
(Different from actual display)
LPF cut-off
frequency
0 to
0 to
0 to