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System examples
By combining the switches and functions of the KAC-PS500F, you can implement a wide
range of audio system configurations.
Full-range 4-channel + Subwoofer system
CONTROL
A
15Hz
OFF
25Hz
2
1
3
0.5
INFRASONIC
4
(MIN)
5
0.2
(MAX)
100
100
120
INPUT
FILTER
CENTER UNIT
120
150
SENSITIVITY(V)
70
150
OFF
HPF
LPF
STEREO
MONO
70
170
OPERATION
A
B
A
50
LPF 200
50
HPF
200
INPUT
CONTROL B
SELECTOR
15Hz
2
OFF
25Hz
1
3
0.5
INFRASONIC
4
120
(MIN)
5
0.2
(MAX)
100
100
150
INPUT
FILTER
120
SENSITIVITY(V)
70
150
OFF
HPF
LPF
STEREO
MONO
70
170
OPERATION
50
LPF 200
50
HPF
200
High-pass (100 Hz) + Subwoofer (100 Hz) system
CONTROL
A
15Hz
2
OFF
25Hz
1
3
0.5
INFRASONIC
4
(MIN)
5
0.2
(MAX)
100
120
100
INPUT
FILTER
CENTER UNIT
120
150
SENSITIVITY(V)
70
150
OFF
HPF
LPF
STEREO
MONO
70
170
OPERATION
A
B
A
50
LPF 200
50
HPF
200
CONTROL B
INPUT
SELECTOR
15Hz
2
1
OFF
25Hz
3
0.5
INFRASONIC
4
120
5
0.2
(MIN)
(MAX)
100
100
150
INPUT
FILTER
120
SENSITIVITY(V)
70
150
OFF
HPF
LPF
STEREO
MONO
70
170
OPERATION
50
LPF 200
50
HPF
200
High-power 2-channel system
CONTROL
A
15Hz
OFF
25Hz
2
1
3
0.5
INFRASONIC
4
(MIN)
5
0.2
(MAX)
100
100
120
INPUT
CENTER UNIT
FILTER
120
150
SENSITIVITY(V)
70
150
OFF
HPF
LPF
STEREO
MONO
70
170
OPERATION
A
B
A
50
LPF 200
50
HPF
200
INPUT
CONTROL B
SELECTOR
15Hz
2
OFF
25Hz
1
3
0.5
INFRASONIC
4
120
(MIN)
5
0.2
(MAX)
100
100
150
INPUT
FILTER
120
SENSITIVITY(V)
70
150
OFF
HPF
LPF
STEREO
MONO
70
170
OPERATION
50
LPF 200
50
HPF
200
10
English
A
L
L
BRIDGED
Front
LINE IN
speaker
R
R
SERVO
FEED BACK
B
L
L
Rear
BRIDGED
LINE IN
speaker
R
R
L
SERVO
LINE OUT
+
FEED BACK
A
B
R
L
LINE IN
Subwoofer
R
Amplifier
A
L
L
BRIDGED
(High pass)
LINE IN
R
R
SERVO
FEED BACK
B
Subwoofer
L
L
BRIDGED
(L + R)
LINE IN
R
(Bridged)
R
L
LINE OUT
SERVO
+
FEED BACK
A
B
R
Left
A
L
L
BRIDGED
speaker
LINE IN
R
R
SERVO
FEED BACK
B
Right
L
L
BRIDGED
speaker
LINE IN
R
R
L
SERVO
LINE OUT
+
FEED BACK
A
B
R
Tri-mode
With the KAC-PS500F, a subwoofer can be added easily to the speaker system by marking
use of the properties of coils and capacitors. This mode of operation is called Tri-mode.
CONTROL
A
15Hz
OFF
25Hz
2
1
3
0.5
INFRASONIC
4
(MIN)
5
0.2
(MAX)
100
120
100
INPUT
FILTER
120
150
SENSITIVITY(V)
70
OFF
150
CENTER UNIT
HPF
LPF
STEREO
MONO
70
170
OPERATION
A
B
A
50
LPF 200
50
HPF
200
INPUT
CONTROL B
SELECTOR
15Hz
2
1
OFF
25Hz
3
0.5
INFRASONIC
4
120
(MIN)
5
0.2
(MAX)
100
100
150
INPUT
FILTER
120
SENSITIVITY(V)
70
150
OFF
HPF
LPF
STEREO
MONO
70
OPERATION
170
50
LPF 200
50
HPF
200
Principle of Tri-mode
Method of frequency band division using a coil and capacitor•••in case of 6dB/oct. slope
Crossover Frequency
0 dB
-3 dB
L
C
Frequency
Example:
When it is required to set a crossover frequency of 120 Hz using speakers with an
impedance of 4 ohms.
Prepare commercially-available coil and capacitor with the closest ratings to the results calculated
from the formula above. The capacitor rating should be as close as possible to 331.25 (µF) and
the coil rating should be as close as possible to 5.3 (mH).
2CAUTION
Be sure to connect a capacitor to the high-pass speaker. Failure to connect a capacitor will result
in a drop of the combined impedance with the woofer.
C
A
L
L
BRIDGED
LINE IN
C
R
R
SERVO
FEED BACK
C
B
L
L
BRIDGED
LINE IN
C
R
R
L
LINE OUT
SERVO
+
FEED BACK
A
B
R
Subwoofer
(L + R)
(High pass)
(Bridged)
Coil (L): Passes low frequencies and blocks high
frequencies. (Low pass)
Capacitor (C): Passes high frequencies and blocks low
frequencies. (High pass)
159000
C=
(µF)
fc x R
fc=Cut of Frequency (Hz)
159 x R
R=Speaker Impedance (Ω)
L=
(mH)
fc
English
L
L
11
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