Kenwood Car Amplifier KAC PS501F User Manual

KAC-PS501F  
4-CHANNEL POWER AMPLIFIER  
INSTRUCTION MANUAL  
© B64-1444-00 (EM)  
 
Installation  
Self-tapping screw  
Cooling fan  
Exhaust outlet  
Air inlet  
Installation board, etc.  
(thickness : 15 mm or more)  
• Since the power amplifier has no parts which require operation, it can be installed at a position  
away from the driver’s seat without any hindrances.  
As generally accepted positions for its installation, places such as inside the trunk, etc. can be  
considered.  
• Use the extension cables. (Optional.)  
Length  
0.5m  
1m  
2m  
4m  
5m  
6m  
Type  
RCA cable  
RCA cable (ø7mm)  
RCA cable (ø12mm)  
CA-2SL  
CA-12SL CA-22SL  
CA-52SL  
CA-53WL  
CA-3WL CA-13WL CA-23WL  
CA-5W CA-15W CA-25W  
CA-45W  
CA-65W  
2CAUTION  
• Do not install the unit under the carpet. Otherwise heat build-up occurs and the unit may be  
damaged.  
• Install this unit in a location which allows heat to easily dissipate.  
Once installed, do not place any object on top of the unit.  
• The surface temperature of the amplifier will become hot during use. Install the amplifier in a  
place where people, resins, and other substances that are sensitive to heat will not come into  
contact with it.  
• This unit has cooling fans to decrease the internal temperature. Be careful not to block the  
cooling fan openings when installing the unit. Blocking these openings will inhibit the cooling of  
the internal temperature and result in malfunction.  
• When making a hole under a seat, inside the trunk, or somewhere else in the vehicle, check  
that there is nothing hazardous on the opposite side such as a gasoline tank, brake pipe, or  
wiring harness, and be careful not to cause scratches or other damage.  
• Do not install near the dashboard, rear tray, or air bag safety parts.  
• The installation to the vehicle should securely fasten the unit to a place in which it will not  
obstruct driving. If the unit comes off due to a shock and hits a person or safety part, it may  
cause injury or an accident.  
• After installing the unit, check to make sure that electrical equipment such as the brake lamps,  
turn signal lamps and windshield wipers operate normally.  
English 3  
 
Controls  
SPEAKER OUTPUT  
A
B
LEFT  
BRIDGED  
RIGHT  
FUSE(20A×4)  
A
B
BATT.  
GND  
#
@
CONTROL  
A
INPUT SENSITIVITY(V)  
2
3
1
4
0.5  
0.2  
1
2 3  
4
5
FREQ (Hz)  
5
(MIN)(MAX)  
OFF 25Hz  
15Hz  
HPF LPF  
OFF  
STEREO MONO AB  
A
INFRASONIC  
FILTER  
OPERATION INPUT SELECT  
MONO  
CONTROL  
CONTROL  
A
B
L
L
INPUT SENSITIVITY(V)  
2
INPUT SENSITIVITY(V)  
2
P.CON EXT.AMP.CONT.  
B.M.S.  
$
%
80  
GND  
FREQ(Hz)  
3
3
1
1
(REMOTE)  
OPEN/ B.M.S.  
4
4
R
0.5  
0.5  
FREQ (Hz)  
0.2  
(MIN)(MAX)  
CLOSE  
FREQ (Hz)  
R
5
0.2  
5
50  
100  
(MIN)(MAX)  
OFF 25Hz  
15Hz  
HPF LPF  
OFF  
B.M.S.  
(+6)  
B.M.S.  
HPF LPF  
OFF  
OFF 25Hz  
15Hz  
STEREO MONO AB  
A
A
B
A
+
B
STEREO MONO  
OPERATION  
INFRASONIC  
FILTER  
OPERATION INPUT SELECT  
LINE IN  
LINE OUT  
FILTER  
INFRASONIC  
*
6 7 8 9  
0 !  
This is a 4 channel amplifier including 2 stereo amplifiers in a body. One amplifier is referred to  
as amplifier A and the other is amplifier B. This unit is compatible with a large variety of  
systems by combining the switches and functions described in the following.  
#1  
#2  
@
$
%
&
^
*
FREQ (Hz)  
#
INPUT SENSITIVITY(V)  
2
A
L
3
1
HPF LPF  
OFF  
OFF 25Hz  
15Hz  
STEREO MONO  
OPERATION  
A
B
4
0.5  
0.2  
FILTER  
INFRASONIC  
FREQ (Hz)  
R
50  
200  
50  
200  
5
(MIN)(MAX)  
LO PASS  
HI PASS  
B.M.S.  
80  
FREQ(Hz)  
AB  
A
(REMOTE)  
OPEN/ B.M.S.  
B
INPUT SENSITIVITY(V)  
2
INPUT SELECT  
L
CLOSE  
3
50  
100  
1
STEREO MONO  
OPERATION  
OFF 25Hz  
15Hz  
HPF LPF  
OFF  
4
0.5  
0.2  
(MIN)(MAX)  
B.M.S.  
(+6)  
B.M.S.  
INFRASONIC  
5
FILTER  
50  
200  
50  
200  
R
LO PASS  
HI PASS  
#1 When FILTER is set to LPF, the sound is monaural (L+R).  
Block diagram  
#2 When INFRASONIC is set to 15Hz or 25Hz, the sound is monaural (L+R).  
* Note that if OPERATION is set to MONO, Lch is still monaural.  
The speakers to be connected should  
1 Fuse (20 A × 4)  
2 Battery terminal  
3 Ground terminal  
have an impedance of 4or greater.  
When multiple speakers are to be  
connected, ensure that the combined  
impedance is 4or greater.  
4 Amplifier A speaker output  
2CAUTION  
terminals  
The rated input of the speakers should be  
no less than the maximum output of the  
amplifier. Otherwise malfunction may  
result.  
5 Amplifier B speaker output  
terminals  
SPEAKER OUTPUT terminals  
• Stereo Connections:  
6 RCA cable ground lead terminal  
7 Amplifier A LINE IN terminal  
8 Amplifier B LINE IN terminal  
When you wish to use the unit as a stereo  
amplifier, stereo connections are used.  
The speakers to be connected should  
have an impedance of 2or greater.  
When multiple speakers are to be  
connected, ensure that the combined  
impedance is 2or greater for each  
channel.  
9 LINE OUT terminal  
These jacks output respectively the signals  
input to amplifiers A and B. They always  
output the stereo signals regardless of the  
position of the OPERATION switch.  
• Bridged Connections:  
When you wish to use the unit as a high-  
output monaural amplifier, bridged  
connections are used. (Make connections  
to the LEFT channel (+) and the RIGHT  
channel (-) SPEAKER OUTPUT terminals.)  
0 Power control terminal  
! EXT.AMP.CONT. (external  
amplifier control) terminal  
This controls the B.M.S. (See P.6).  
4 English  
 
&
FILTER  
FREQUENCY  
CONTROL  
B
A
INPUT SENSITIVITY(V)  
2
B.M.S.  
80  
FREQ(Hz)  
3
1
(REMOTE)  
OPEN/ B.M.S.  
COOLING FAN  
4
AIR  
0.5  
FREQ (Hz)  
0.2  
INDUCTION  
50  
200  
50  
200  
CLOSE  
OPERATION/PROTECTION  
5
50  
100  
LO PASS  
HI PASS  
(MIN)(MAX)  
4
/
3
/
2
CHANNEL POWER AMPLIFIER  
OPEN/CLOSE  
B
FILTER  
FREQUENCY  
B.M.S.  
(+6)  
B.M.S.  
HPF LPF  
OFF  
OFF 25Hz  
15Hz  
STEREO MONO  
OPERATION  
LOW VOLTAGE  
50  
200  
50  
200  
FILTER  
INFRASONIC  
LO PASS  
HI PASS  
B
B.M.S.  
50  
200  
50  
200  
50  
200  
50  
200  
LO PASS  
HI PASS  
LO PASS  
HI PASS  
^
@ INPUT SELECTOR switch  
% FILTER switch  
This switch selects the input method of the  
This switch allows to apply high-pass or  
low-pass filtering to the speaker outputs.  
signals to be amplified by amplifiers A and  
B.  
• A B position:  
Amplifies both of the signals input to  
amplifiers A and B.  
• HPF (High-Pass Filter) position:  
The filter outputs the band of higher  
frequencies than the frequency set with the  
HPF FREQUENCY control.  
• A position:  
Amplifies only signal input amplifier A with  
both amplifiers A and B.  
• OFF position:  
The entire bandwidth is output without  
filtering.  
• LPF (Low-Pass Filter) position:  
The filter outputs the band of lower  
frequencies than the frequency set with the  
LPF FREQUENCY control.  
The speaker output is automatically turned  
monaural (L+R) and the bass boost function  
is activated.  
# INPUT SENSITIVITY control  
Adjust this control according to the pre-out  
level of the centre unit connected to this  
amplifier.  
The sensitivities of amplifiers A and B can  
be adjusted independently regardless of the  
position of the input selector switch.  
^ HPF FREQUENCY control  
Sets the cutoff frequency when the FILTER  
switch is set to HPF.  
NOTE  
Refer to “Specifications” on the centre  
unit’s instruction manual about the pre-out  
level.  
& LPF FREQUENCY control  
Sets the cutoff frequency when the FILTER  
switch is set to LPF.  
$ OPERATION switch  
The amplification methods of the signals  
input to amplifiers A and B can be selected  
independently according to the setting of  
this switch.  
* INFRASONIC FILTER switch  
When this switch is set to 15 Hz or 25 Hz,  
frequencies below the setting value will be  
cut. This serves to get rid of unwanted  
vibrations that do not result in sound and  
improves the speakers’ ability to reproduce  
sound. Note that the speaker output will  
automatically be set for monaural (L+R)  
sound.  
• STEREO position:  
The amplifier can be used as a stereo  
amplifier.  
• MONO (Lch) position:  
Amplifies the signal input from the left side  
only. Set to this position and make bridged  
connections to use as a high-power  
monaural amplifier. (The input right signal is  
not output.)  
English 5  
 
B.M.S. (Bass Management System)  
2
1
B.M.S.  
80  
FREQ(Hz)  
(REMOTE)  
OPEN/ B.M.S.  
CLOSE  
50  
100  
B.M.S.  
(+6)  
COOLING FAN  
AIR  
INDUCTION  
B.M.S.  
OPERATION/PROTECTION  
4
/
3
/
2
CHANNEL POWER AMPLIFIER  
OPEN/CLOSE  
FILTER  
FREQUENCY  
A
LOW VOLTAGE  
OPERATION/PROTECTION  
50  
200  
50  
200  
LO PASS  
HI PASS  
B
B.M.S.  
50  
200  
50  
200  
3
LO PASS  
HI PASS  
OPEN/CLOSE  
LOW VOLTAGE  
B.M.S. indicator  
B.M.S.  
If the unit is not going to be operated from the outside:  
1 B.M.S. switch  
NOTE  
This boosts the bass, focusing mainly on  
the frequency setting determined using the  
B.M.S. FREQUENCY control.  
The bass boost applies only to the B  
amplifier.  
• (REMOTE) OPEN/CLOSE or  
(REMOTE) B.M.S. position:  
When the switch is in this position, the  
bass is not boosted.  
• If the slide panel meets an obstacle whilst  
sliding, the slide operation will be halted. If  
this happens, remove the obstacle and then  
press the OPEN/CLOSE button again.  
• If the centre unit power is switched OFF, or  
the vehicle engine is switched OFF, whilst  
the slide panel is open, the slide panel will  
then close automatically. The next time the  
power is turned ON or the vehicle engine is  
turned ON, the slide panel will return to its  
original open state.  
Bass boost  
Flat (OFF)  
Operations using the  
OPEN/CLOSE button  
Slide panel  
• If the B.M.S. switch setting is changed to  
(REMOTE), the slide panel will close in  
preparation for remote operation, even if the  
EXT.AMP.CONT. terminal is not connected.  
• B.M.S. (+6) position:  
When the switch is in this position, the  
bass is boosted by 6dB.  
2CAUTION  
The B.M.S. indicator glows.  
Take care not to allow your finger or any other  
object to be trapped by the slide panel whilst  
it is sliding.  
Bass boost  
+6dB (ON)  
Operations using the  
OPEN/CLOSE button  
Slide panel  
2 B.M.S. FREQUENCY control  
When the B.M.S. switch is set to the  
B.M.S. (+6) position, this control can be  
used to adjust the central frequency that  
you want to emphasise.  
3 OPEN/CLOSE button  
Each time you press this button, the slide  
panel either opens or closes.  
6 English  
 
If the unit is going to be operated from the centre unit:  
The amount of bass boost and the opening/closing of the slide panel can be controlled from  
the centre unit. Additionally, up to 3 power amplifiers can be set at the same time.  
NOTE  
Kenwood centre units released in 1999 or later having an “EXT.AMP.CONT.” cable operate  
this unit. Instructions on how to operate the centre unit will be found in the instruction manual  
supplied with the centre unit.  
1 B.M.S. switch  
2 B.M.S. FREQUENCY control  
This control allows you to use the B.M.S. to  
adjust the central frequency that you want  
to emphasise.  
This switch is used to select the range of  
control operations that can be carried out  
from the centre unit.  
The bass boost only applies to the B  
amplifier.  
When the bass boost is switched ON, the  
B.M.S. indicator glows.  
• (REMOTE) OPEN/CLOSE position:  
When the switch is in this position, only the  
opening/closing of the slide panel can be  
controlled from the centre unit; the bass  
cannot be boosted.  
3 OPEN/CLOSE button  
• When the B.M.S. switch is in the B.M.S.  
(+6) position, the slide panel will open or  
close each time the button is pressed.  
• When the B.M.S. switch is set to the  
(REMOTE) position, the centre unit will  
control the slide panel.  
If you want to adjust the control inside the  
slide panel, you can open/close the slide  
panel temporarily by pressing the  
OPEN/CLOSE button.  
AMP  
BASS  
Flat  
AMP  
BASS  
+6  
AMP  
BASS  
+12  
Centre unit  
setting status  
NOTE  
Bass boost  
Slide panel  
Flat (OFF)  
• If the slide panel meets an obstacle whilst  
sliding, the slide operation will be halted. If  
this happens, remove the obstacle and then  
press the OPEN/CLOSE button again.  
• When the B.M.S. is in the (REMOTE)  
position, and control operations are carried  
out on the centre unit, the slide panel will  
return to the status set on the centre unit  
even if it is opened/closed using the  
OPEN/CLOSE button.  
• If the centre unit power is switched OFF, or  
the vehicle engine is turned OFF, when the  
slide panel is open, the slide panel will  
automatically close.  
When the power is turned back ON, or  
when the vehicle engine is turned ON, the  
slide panel will carry out an action  
depending on the setting status of the  
B.M.S. switch, as follows.  
*If the B.M.S. switch is in the (REMOTE)  
position, the slide panel will obey the  
setting on the centre unit.  
CLOSE  
OPEN  
• (REMOTE) B.M.S. position:  
When the switch is in this position, any of  
the three bass boost settings — FLAT,  
+6dB and +12dB — can be selected from  
the centre unit. If "+6 dB" or "+12 dB" is  
selected, the slide panel will open.  
AMP  
BASS  
Flat  
AMP  
BASS  
+6  
AMP  
BASS  
+12  
+12dB  
(ON)  
Centre unit  
setting status  
Flat  
+6dB  
(ON)  
Bass boost  
Slide panel  
(OFF)  
CLOSE  
OPEN  
• B.M.S. (+6) position:  
When the switch is in this position, the  
bass is boosted by 6dB, regardless of any  
operation carried out from the centre unit.  
AMP  
BASS  
Flat  
AMP  
BASS  
+6  
AMP  
BASS  
+12  
Centre unit  
setting status  
*If the B.M.S. switch is in the B.M.S. (+6)  
position, the slide panel will return to its  
original open state.  
Bass boost  
Slide panel  
+6dB (ON)  
Operations using the  
OPEN/CLOSE button  
2CAUTION  
Take care not to allow your finger or any other  
object to be trapped by the slide panel whilst  
it is sliding.  
English 7  
 
Indicator  
1
2
COOLING FAN  
COOLING FAN  
3
OPERATION/PROTECTION  
OPERATION/PROTECTION  
POWER  
4
/
3
/
2
CHANNEL POWER AMPLIFIER  
OPEN/CLOSE  
LOW VOLTAGE  
I
OPEN/CLOSE  
B.M.S.  
4
5
LOW VOLTAGE  
B.M.S.  
PROTECTION function  
1 POWER indicator  
This unit incorporates a protection function  
which protects the main unit and speakers  
from troubles. The unit stops to function  
when the protection function is activated.  
This indicator glows when the unit's power  
is turned ON.  
2 COOLING FAN indicator  
When the unit's internal temperature rises,  
the side fan is activated. If the internal  
temperature rises even further, the slide  
panel opens automatically, and the cooling  
fan on the top is activated.  
• When the  
OPERATION/PROTECTION indicator  
blinks:  
• A speaker cable may be short-circuited.  
• A speaker output may be in contact with  
the ground.  
Whilst the top cooling fan is in operation,  
the COOLING FAN indicator blinks.  
• The temperature of the internal parts may  
be higher than 120°C (248°F)  
• The fuse of this unit may be blown.  
• The unit may be malfunctioning and  
sending DC signal to the speaker output.  
3 OPERATION/PROTECTION  
indicator  
This indicator glows when the power  
comes ON normally.  
If the PROTECTION function is activated,  
the indicator blinks or goes out.  
• When the POWER indicator and the  
OPERATION/PROTECTION function  
both go out:  
4 LOW VOLTAGE indicator  
This indicator glows when the power  
voltage falls below 11V (volts).  
• The fuse of this unit may be blown.  
• When the LOW VOLTAGE indicator  
If the power supply voltage returns to full  
after a voltage drop, this indicator will blink  
to alert the user that a voltage drop has  
occurred.  
The number of blinks indicates the number  
of times the voltage has dropped (up to a  
maximum of 10).  
glows or blinks:  
• Is the battery exhausted?  
• The car battery has a small capacity.  
• If the battery cable is too thin or too long,  
it will not be able to supply enough  
power.  
• Is the battery cable deteriorated?  
5 B.M.S. indicator  
This indicator glows when the bass boost is  
turned ON using the B.M.S. (See P.6).  
NOTE  
If indicators 2 to 5 light up in succession or  
blink in unison, the system is in DEMO mode.  
If this happens, cancel DEMO mode by  
pressing the OPEN/CLOSE button.  
8 English  
 
Connection  
Power cable connection  
2WARNING  
To prevent fire caused by a short in the wiring, connect a fusible link or breaker nearby the battery’s  
positive terminal.  
Wiring  
• If a buzzing noise is heard from the speakers when the engine is running, connect a line noise filter  
(optional) to each of the battery cable.  
• Do not allow the cable to directly contact the edge of the iron plate by using Grommets.  
• Connect the ground cable to a metal part of the car chassis that acts as an electrical ground  
passing electricity to the battery‘s negative - terminal. Do not turn the power on if the ground  
cable is not connected.  
• Please be sure to install a protective fuse in the power cable, near the battery. Use a fuse which  
has a capacity about 10A higher than the capacity of the fuse in the unit.  
• For the power cable and the earth cable, use (flame-resistant) power wiring cables for in-car use.  
For the power cable, use a power wiring cable with a current capacity about 10A higher than the  
capacity of the protective fuse (about 20A higher than the capacity of the fuse in the unit).  
• When more than one power amplifier are going to be used, use a power supply wiring cable and  
protective fuse of greater current-handling capacity than the total maximum current drawn by each  
amplifier.  
Example: One Power Amplifier Is Used  
Fuse capacity  
Protective Fuse  
Cross-sectional Area of Wiring  
Cable (AWG)  
10 mm (AWG 8) or greater × 1  
2
90 A × 1 [30 A × 3]  
80 A  
30 A  
30 A  
30 A  
90 A  
30 A 30 A 30 A  
SPEAKER OUTPUT  
A
LEFT  
BRIDGED  
RIGHT  
B
FUSE(20A×4)  
A
B
BATT.  
GND  
Lead terminal *  
Terminal cover  
Power terminal  
Battery cable *  
Ground cable *  
Lead terminal *  
Protective  
Fuse  
Battery  
* : Commercially available parts  
Power terminal  
Pass battery and ground cables through supplied terminal cover and connect to respective  
terminals. After completing connections, fasten terminal cover over terminal bracket.  
English 9  
 
Connection  
RCA cable connection  
B Left input  
A Left input  
D
N
G
MON
CONTROL  
CONTROL  
A
B
L
L
INPUT SENSITIVITY(V)  
2
INPUT SENSITIVITY(V)  
2
P.CON EXT.AMP.CONT.  
B.M.S.  
80  
GND  
FREQ(Hz)  
3
3
1
1
(REMOTE)  
OPEN/ B.M.S.  
4
4
R
0.5  
0.5  
FREQ (Hz)  
0.2  
(MIN)(MAX)  
CLOSE  
FREQ (Hz)  
R
5
0.2  
5
50  
100  
(MIN)(MAX)  
OFF 25Hz  
15Hz  
HPF LPF  
OFF  
B.M.S.  
(+6)  
B.M.S.  
HPF LPF  
OFF  
OFF 25Hz  
15Hz  
STEREO MONO AB  
B
A
+
B
STEREO MONO  
OPERATION  
INFRASONIC  
FILTER  
OPERATION INPUT SELECT  
LINE N  
NE OUT  
FILTER  
INFRASONIC  
RCA cable ground terminal  
B Right input  
A Right input  
Power control cable  
RCA cable *  
(To Power control terminal)  
Front output  
Rear output  
CENTRE UNIT  
(Cassette receiver,  
CD receiver, etc.)  
* : Commercially available parts  
RCA cable ground terminal  
When using an RCA cable with a ground lead attached, connect the ground lead to this  
terminal.  
2CAUTION  
Do not use this terminal for power source grounding. This unit will be damaged if the power  
source grounding cable is connected to this terminal.  
Speaker Selection  
• The rated input power of the speakers that are going to be connected should be greater than  
the maximum output power (in Watts) of the amplifier. Use of speakers having input power  
ratings that are less than the output power of the amplifier will cause smoke to be emitted as  
well as damage.  
• The impedance of the speakers that are going to be connected should be 2or greater (for  
stereo connections), or 4or greater (for bridged connections). When more than one set of  
speakers are going to be used, calculate the combined impedance of the speakers and then  
connect suitable speakers to the amplifier.  
Examples:  
Stereo Connections (4)  
Bridged Connections (4)  
200 W or greater  
600 W or greater  
200W  
(2)  
100W  
(8)  
100W  
(8)  
200W  
200W  
200W  
(4)  
200W  
(4)  
(4)  
(4)  
200W  
(2)  
4  
4 Ω  
4 Ω  
Maximum output of  
the amplifier  
Combined  
impedance  
Rated input power and  
impedance of the speakers  
10 English  
 
Speakers cable connection  
(Stereo Connections)  
Front Left speaker  
Front Right speaker  
Lead terminal *  
A Right output  
A Left output  
SPEAKER OUTPUT  
A
LEFT  
BRIGED  
RIGHT  
FUSE(20A×4)  
A
B
BATT.  
GND  
Speaker output terminals  
BRIDGED  
B Right output  
B Left output  
A
B
L
R
Rear Right speaker  
Rear Left speaker  
(Bridged Connections)  
Speaker (Bridged)  
Lead terminal *  
A Bridged output  
SPEAKER OUTPUT  
A
LEFT  
BRIDGED  
RIGHT  
B
FUSE(20A×4)  
A
BATT.  
GND  
B
Speaker output terminals  
BRIDGED  
B Bridged output  
A
B
L
R
Speaker (Bridged)  
* : Commercially available parts  
English 11  
 
Connection  
Control terminal  
Attach the connection terminal to a commercially available wiring cable for in-car use, and  
connect it to the unit.  
NOTE  
An EXT.AMP.CONT. terminal can only be attached if Kenwood centre unit is a model released in  
1999 or latter, and has an “EXT.AMP.CONT.” cable. Using the external amp control, up to 3  
power amplifiers can be operated simultaneously (although this may not be possible, depending  
on the type of wiring cable used, and its length).  
Power control lead terminal  
External amplifier control terminal  
MONO  
CONTROL  
CONTROL  
A
B
L
L
INPUT SENSITIVITY(V)  
2
INPUT SENSITIVITY(V)  
2
P.CON EXT.AM.CONT.  
B.M.S.  
80  
GND  
FREQ(Hz)  
3
3
1
1
(REMOTE)  
OPEN/ B.M.S.  
4
4
R
0.5  
0.5  
FREQ (Hz)  
0.2  
(MIN)(MAX)  
CLOSE  
FREQ (Hz)  
R
5
0.2  
5
50  
100  
(MIN)(MAX)  
OFF 25Hz  
15Hz  
HPF LPF  
OFF  
B.M.S.  
(+6)  
B.M.S.  
HPF LPF  
OFF  
OFF 25Hz  
15Hz  
STEREO MONO AB  
A
A
B
A
+
B
STEREO MONO  
OPEATION  
INFRASONIC  
FILTER  
OPERATION INPUT SELECT  
LINE IN  
LINE OUT  
FILTER  
INFRASONIC  
.
T
N
O
C
.
Power control cable  
(Blue/ White)  
P
M
A
.
T
X
E
N
O
C
.
P
CENTRE UNIT  
(Cassette receiver,  
CD receiver, etc.)  
P.CONT.  
EXT.AMP.  
CONT.  
Lead terminal *  
Extension cable *  
External amplifier control  
cable (Pink / Black)  
* : Commercially available parts  
System examples  
Full-range 4-channel + Subwoofer system  
FILTER  
FREQUENCY  
HPF LPF  
OFF  
L
STEREO MONO  
OPERATION  
L
Front  
A
A
FILTER  
R
INPUT SENSITIVITY(V)  
2
3
speaker  
FREQ (Hz)  
R
CENTRE UNIT  
Switch setting  
CONTROL  
A
1
50  
200  
50  
200  
LO PASS  
HI PASS  
4
OFF 25Hz  
15Hz  
L
0.5  
0.2  
5
INFRASONIC  
(MIN)(MAX)  
B
L
R
Rear  
speaker  
AB  
A
HPF LPF  
OFF  
R
INPUT SELECT  
B.M.S.  
80  
L
STEREO MONO  
OPERATION  
LINE  
OUT  
FREQ(Hz)  
(REMOTE)  
B
FILTER  
R
INPUT SENSITIVITY(V)  
2
3
OPEN/ B.M.S.  
CLOSE  
FREQ (Hz)  
50  
100  
1
L
CONTROL  
50  
200  
50  
200  
B
4
OFF 25Hz  
15Hz  
LO PASS  
HI PASS  
B.M.S.  
(+6)  
B.M.S.  
0.5  
0.2  
Subwoofer  
(High pass)  
5
R
INFRASONIC  
(MIN)(MAX)  
Amplifier  
High-pass + Subwoofer system  
FILTER  
FREQUENCY  
HPF LPF  
OFF  
STEREO MONO  
OPERATION  
L
A
L
FILTER  
A
B
INPUT SENSITIVITY(V)  
2
R
FREQ (Hz)  
CENTRE UNIT  
Switch setting  
3
R
CONTROL  
A
1
50  
200  
50  
200  
LO PASS  
HI PASS  
4
OFF 25Hz  
15Hz  
0.5  
0.2  
L
5
INFRASONIC  
(MIN)(MAX)  
R
Subwoofer  
(L + R)  
(Bridged)  
AB  
A
HPF LPF  
OFF  
B.M.S.  
80  
INPUT SELECT  
STEREO MONO  
OPERATION  
FREQ(Hz)  
L
B
LINE  
OUT  
FILTER  
(REMOTE)  
OPEN/ B.M.S.  
INPUT SENSITIVITY(V)  
2
R
CLOSE  
FREQ (Hz)  
50  
100  
3
1
CONTROL  
50  
200  
50  
200  
B
4
B.M.S.  
(+6)  
B.M.S.  
OFF 25Hz  
15Hz  
LO PASS  
HI PASS  
0.5  
0.2  
5
INFRASONIC  
(MIN)(MAX)  
12 English  
 
System examples  
High-power 2-channel system  
FILTER  
FREQUENCY  
HPF LPF  
OFF  
STEREO MONO  
OPERATION  
Left  
A
L
L
FILTER  
A
B
INPUT SENSITIVITY(V)  
2
speaker  
R
FREQ (Hz)  
CENTRE UNIT  
Switch setting  
3
CONTROL  
A
1
50  
200  
50  
200  
LO PASS  
HI PASS  
4
OFF 25Hz  
15Hz  
0.5  
0.2  
R
L
5
INFRASONIC  
(MIN)(MAX)  
Right  
speaker  
R
AB  
A
HPF LPF  
OFF  
B.M.S.  
80  
INPUT SELECT  
STEREO MONO  
OPERATION  
FREQ(Hz)  
L
B
LINE  
OUT  
FILTER  
(REMOTE)  
OPEN/ B.M.S.  
INPUT SENSITIVITY(V)  
2
R
CLOSE  
FREQ (Hz)  
50  
100  
3
1
CONTROL  
50  
200  
50  
200  
B
4
B.M.S.  
(+6)  
B.M.S.  
OFF 25Hz  
15Hz  
LO PASS  
HI PASS  
0.5  
0.2  
5
INFRASONIC  
(MIN)(MAX)  
Tri-mode  
C
C
L
L
FILTER  
FREQUENCY  
HPF LPF  
OFF  
STEREO MONO  
OPERATION  
L
L
A
FILTER  
A
B
R
INPUT SENSITIVITY(V)  
2
3
FREQ (Hz)  
R
CENTRE UNIT  
Switch setting  
CONTROL  
A
1
50  
200  
50  
200  
LO PASS  
HI PASS  
4
OFF 25Hz  
15Hz  
0.5  
0.2  
L
5
INFRASONIC  
(MIN)(MAX)  
R
L
AB  
A
HPF LPF  
OFF  
B.M.S.  
80  
INPUT SELECT  
STEREO MONO  
OPERATION  
L
FREQ(Hz)  
LINE  
OUT  
B
FILTER  
R
(REMOTE)  
OPEN/ B.M.S.  
R
INPUT SENSITIVITY(V)  
2
3
CLOSE  
FREQ (Hz)  
50  
100  
1
CONTROL  
50  
200  
50  
200  
B
4
B.M.S.  
(+6)  
B.M.S.  
OFF 25Hz  
15Hz  
LO PASS  
HI PASS  
0.5  
0.2  
Subwoofer  
(L + R) (Bridged)  
(High pass)  
5
INFRASONIC  
(MIN)(MAX)  
Principle of Tri-mode  
Method of frequency band division using a coil and capacitor•••in case of 6dB/oct. slope  
Coil (L): Passes low frequencies and blocks high  
Crossover Frequency  
frequencies. (Low pass)  
0 dB  
-3 dB  
Capacitor (C): Passes high frequencies and blocks low  
frequencies. (High pass)  
L
C
159000  
C=  
L=  
(µF)  
fc x R  
159 x R  
fc  
fc=Cut of Frequency (Hz)  
R=Speaker Impedance ()  
Frequency  
(mH)  
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  
• If you wish to bridge-connect a speaker, the speaker impedance must be no less than 4 ohms.  
Connecting a speaker with an impedance lower than 4 ohms may damage the unit.  
• Be sure to connect capacitors to speakers to which high frequencies will be passed. Failure to  
do so will result in a drop of the combined impedance with the subwoofer.  
• Ensure that the withstand voltage and current ratings of the capacitors (C) and coils (L) are  
sufficient.  
English 13  
 
Troubleshooting Guide  
What might appear to be a malfunction in your unit may just be the result of slight  
misoperation or miswiring. Before calling service, first check the following table for possible  
problems.  
PROBLEM  
POSSIBLE CAUSE  
SOLUTION  
No sound.  
(No sound from one side.)  
• Input (or output) cables are  
disconnected.  
• Connect the input (or output)  
cables.  
• Protection circuit may be  
activated.  
• Check connections by referring  
to "Indicator".  
• The fuse may be blown because • Replace the fuse with a new  
the volume was too high.  
fuse and use a lower volume.  
The output level is too  
small (or too large).  
The input sensitivity adjusting  
control is not set to the correct  
position.  
Adjust the control correctly  
referring to “Controls”.  
The sound quality is bad.  
(The sound is distorted.)  
• The speakers cable are  
connected with wrong + / -  
polarity.  
• Connect them properly checking  
the + / - of the terminals and  
cables well.  
• A speaker cable is pinched by a • Connect the speaker cable again  
screw in the car body.  
so that it is not pinched by  
anything.  
• The switches may be set  
improperly.  
• Set switches properly by  
referring to "System examples".  
If the slide panel moves of • The system is in DEMO mode.  
its own accord.  
• Cancel DEMO mode by pressing  
the OPEN/CLOSE button.  
• Check the B.M.S. and operate  
the slide panel remotely or  
manually.  
• The slide panel has gone into  
remote operation mode.  
The external amplifier  
controller (B.M.S.) will not  
work.  
• The B.M.S. switch is set to  
"B.M.S. (+6)".  
• The external amplifier control  
cable has come loose.  
• The B.M.S. switch is set to  
"(REMOTE)".  
• Check that the external amplifier  
control cable is properly  
connected.  
14 English  
 
Specifications  
Specifications subject to change without notice.  
Audio Section  
Max Power Output (4 )  
4 Channel Mode ........................................................................................................150 W × 4  
3 Channel Mode....................................................................................150 W × 2 + 600 W × 1  
2 Channel Mode ........................................................................................................600 W × 2  
Rated Power Output (4 ) (+B = 12.0 V)  
4 Channel Mode ........................................................50 W × 4 (20 Hz ~ 20 kHz, 0.05 % THD)  
3 Channel Mode....................50 W × 2 (1 kHz, 0.05 % THD) + 200 W × 1 (1 kHz, 0.5 % THD)  
2 Channel Mode ........................................................................200 W × 2 (1 kHz, 0.5 % THD)  
Rated Power Output (2 ) (+B = 12.0 V)  
4 Channel Mode ........................................................................100 W × 4 (1 kHz, 0.5 % THD)  
Rated Power Output (4 ) (+B = 14.4 V)  
4 Channel Mode....................................................................75 W × 4 (DIN45324, +B=14.4 V)  
3 Channel Mode....................75 W × 2 (1 kHz, 0.05 % THD) + 300 W × 1 (1 kHz, 0.5 % THD)  
2 Channel Mode ........................................................................300 W × 2 (1 kHz, 0.5 % THD)  
Rated Power Output (2 ) (+B = 14.4 V)  
4 Channel Mode ........................................................................150 W × 4 (1 kHz, 0.5 % THD)  
Frequency Response (+0, –3 dB)..............................................................................5 Hz ~ 50 kHz  
#
Total Harmonic Distortion (Rated power) ................................................................0.01 % (1 kHz)  
Signal to Noise Ratio............................................................................................................110 dB  
Sensitivity (rated output) (MAX) ..............................................................................................0.2 V  
Sensitivity (rated output) (MIN) ..............................................................................................5.0 V  
Input Impedance....................................................................................................................10 kΩ  
Damping Factor........................................................................................................More than 200  
Low Pass Filter Frequency (24 dB/oct.)........................................................50 ~ 200 Hz (Variable)  
High Pass Filter Frequency (12 dB/oct.) ......................................................50 ~ 200 Hz (Variable)  
Infrasonic Filter Frequency (24 dB/oct.) ..........................................................................15 / 25 Hz  
# Sensitivity = Mini. , Through LPF (30 kHz)  
General  
Operating Voltage ..............................................................................12.0 V (11 ~ 16 V allowable)  
Current Consumption (4 , +B = 12.0 V, 10% THD) ..............................................................42 A  
Dimensions (W × H × D) ..................................................................................272 × 64 × 380 mm  
Weight ..................................................................................................................................7.1 kg  
English 15  
 

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