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Installation
7 Accessories
190 mm (7-1/2")
177 mm (6-15/16")
Speaker cable
1
165 mm (6-1/2")
1
Protective cover
2
2
Wire band
3
2
Self-tapping screws
4
4
ø 4 x 16 mm
Protective cover 2
Spare
MOISTURE
After setting up the unit, put the protective cover 2 on the
control panel.
DUST
Example A: using the screws
Example B: using the wire bands es
4 Parts included
Installation board, etc. (thickness : 15 mm or more) T
7 Installation procedure
• Install this unit in a location which allows heat to easily
Since there are large variety of settings and connections
dissipate.
Once installed, do not place any object on top of the
possible according to applications, read the instruction
manual well to select the proper setting and connection.
unit.
• The surface temperature of the amplifier will become hot
1. Remove the ignition key and disconnect the negative ·
during use. Install the amplifier in a place where people,
terminal of the battery to prevent short circuits.
resins, and other substances that are sensitive to heat will
2. Set the unit according to the intended usage.
not come into contact with it.
3. Connect the input and output wires of the units.
• When making a hole under a seat, inside the trunk,
4. Connect the speaker wires.
or somewhere else in the vehicle, check that there
5. Connect the power wire, power control wire and
is nothing hazardous on the opposite side such as a
grounding wire following this order.
gasoline tank, brake pipe, or wiring harness, and be
6. Attach the unit.
careful not to cause scratches or other damage.
7. Connect the negative · terminal of the battery.
• Do not install near the dashboard, rear tray, or air bag
CAUTION
safety parts.
• The installation to the vehicle should securely fasten the
• Do not install in the below locations;
(Unstable location, In a location that interferes with
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
driving, In a location that gets wet, In a dusty location, In
part, it may cause injury or an accident.
a place that gets hot, In a place that gets direct sunlight,
In a location that gets hit by hot air)
• After installing the unit, check to make sure that
electrical equipment such as the brake lamps, turn signal
• Do not install the unit under the carpet. Otherwise heat
build-up occurs and the unit may be damaged.
lamps and windshield wipers operate normally.
Connection
WARNING
Particular attention must be given to making good electrical contact
at the amplifier-output and speaker terminals.
Poor or loose connections can cause sparking or burning at the
terminals because of the very high power that the amplifier can deliver.
CAUTION
• If sound is not output normally, immediately turn power off and
check connections.
• Be sure to turn the power off before changing the setting of any
switch.
• If the fuse blows, check wires for shorts, then replace the fuse with
one of the same rating.
• Check that no unconnected wires or connectors are touching
the car body. Do not remove caps from unconnected wires or
connectors to prevent short circuits.
• Connect the speaker wires to appropriate speaker connectors
separately. Sharing the negative wire of the speaker or grounding
speaker wires to the metal body of the car can cause this unit to fail.
• After installation, check that the brake lamps, turn signal lamps and
windshield wipers work properly.
3 Parts included
Controls
This is a 4 channel amplifier
When multiple speakers are to be
including 2 stereo amplifiers in a
connected, ensure that the combined
body. One amplifier is referred to as
impedance is 4Ω or greater.
amplifier A and the other is amplifier
6 FILTER FREQUENCY control
B. This unit is compatible with a large
(A.ch/B.ch)
variety of systems by combining the
Sets the cutoff frequency when the
switches and functions described in
"FILTER" switch is set to "HPF" or "LPF".
the following.
7 FILTER switch (A.ch/B.ch)
1 Fuse (30 A)
This switch allows to apply high-pass or
NOTE
low-pass filtering to the speaker outputs.
If you can't find the specified capacity
• HPF (High-Pass Filter) position:
fuse at your store etc., consult your
The filter outputs the band of higher
Kenwood dealer.
frequencies than the frequency set with
2 Battery terminal (BATT.)
the "FILTER FREQUENCY" control.
3Ground terminal (GND)
• OFF position:
4 Power control terminal (P.CON)
The entire bandwidth is output without
filtering.
Controls the unit ON/OFF.
• LPF (Low-Pass Filter) position:
NOTE
The filter outputs the band of lower
Controls the unit power. Be sure to
frequencies than the frequency set with
connect it with all the systems.
the "FILTER FREQUENCY" control.
5 SPEAKER OUTPUT terminals
8 LINE IN terminal (A.ch/B.ch)
(A.ch/B.ch)
9 INPUT SENSITIVITY control
• Stereo connections:
(A.ch/B.ch)
When you wish to use the unit as a stereo
Set this control according to the
amplifier, stereo connections are used.
pre-output level of the HEAD UNIT
The speakers to be connected should have
connected with this unit.
an impedance of 2Ω or greater. When
NOTE
multiple speakers are to be connected,
ensure that the combined impedance is
For the pre-output level, refer to the
2Ω or greater for each channel.
<Specifications> in the instruction
• Bridged connections:
manual of the HEAD UNIT.
The entire bandwidth is output without
When you wish to use the unit as a high-
output amplifier, bridged connections
filtering.
0 Power indicator
are used. (Refer to <High-power
2-channel system> or <2-channel +
When the power is turned on, the Power
Subwoofer system> of <Connection>.)
indicator lights.
The speakers to be connected should
have an impedance of 4Ω or greater.
WARNING
Remove the ignition key and disconnect the negative · terminal of the battery to prevent short circuits.
7 Power wire and speaker wire connection
7 RCA INPUT connection
AFTER MARKET
AFTER MARKET
HEAD UNIT
HEAD UNIT
FRONT
L
R
Power control wire
AFTER MARKET HEAD UNIT only
* 1
RCA cable
1
Battery wire
Parts included
System examples
Protective fuse
■ 4-channel system
Ground wire
L
A
HEAD UNIT
R
L
B
Battery
R
WARNING
To prevent fire caused by a short in the wiring,
connect a fusible link or breaker nearby the
battery's positive terminal.
■ High-power 2-channel system
L
L
A
L
HEAD UNIT
R
R
L
L
L
R
R
B
R
R
* 1
The output from the FACTORY INSTALLED HEAD UNIT
up to 50W can be input.
The power is turned on and off as the unit detects
input signal (SIGNAL SENSING TURN-ON). Therefore it
is not necessary to connect the power control wire.
■ 2-channel + Subwoofer system
L
A
HEAD UNIT
R
L
B
R
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
No sound.
(No sound from one
side.)
7 SPEAKER INPUT connection
(Blown fuse.)
The output level is too
small (or too large).
FACTORY INSTALLED
HEAD UNIT
The sound quality is
REAR
bad.
L
(The sound is distorted.)
R
L
R
Speaker line to male RCA
adapter
Specifications
Specifications subject to change without notice.
Audio section
Rated power output (+B = 14.4V)
Stereo (4 Ω) ................50 W × 4 (20 Hz – 20 kHz, ≤ 1.0 % THD)
Stereo (2 Ω) .....................................75 W × 4 (1 kHz, ≤ 1.0 % THD)
A.ch
B.ch
A.ch
B.ch
Bridged (4 Ω) ...............................150 W × 2 (1 kHz, ≤ 1.0 % THD)
Speaker impedance ...............................4 Ω (2 Ω to 8 Ω allowable)
Frequency response (+0, –3 dB).............................20 Hz – 20 kHz
Input sensitivity (RCA) ...........................................................0.2 V – 5.0 V
[White]
A.ch
Signal to noise ratio .............................................................................87 dB
Front left speaker
Input impedance ...................................................................................10 kΩ
[White/Black]
Low pass filter frequency (-12 dB/oct.)
[Gray]
A.ch
.....................................................................50 Hz – 200 Hz (variable)
Front right speaker
High pass filter frequency (-12 dB/oct.)
[Gray/Black]
.....................................................................50 Hz – 200 Hz (variable)
[Green]
B.ch
Rear left speaker
[Green/Black]
[Purple]
B.ch
Rear right speaker
[Purple/Black]
[White]
A.ch
Left speaker (Bridged)
[Gray/Black]
[White/Black]
[Green/Black]
Prevent a short circuit!
[Gray]
[Purple]
[Green]
B.ch
Right speaker (Bridged)
[Purple/Black]
[White]
A.ch
Left speaker (high pass)
[White/Black]
[Gray]
A.ch
Right speaker (High pass)
[Gray/Black]
[Green]
B.ch
Subwoofer (Bridged)
[Purple/Black]
[Green/Black]
[Purple]
Prevent a short circuit!
POSSIBLE CAUSE
SOLUTION
• Input (or output) cables are disconnected.
• Connect the input (or output) cables.
• Protection circuit may be activated.
• Check connections by referring to
<Protection function>.
• Volume is too high.
• Replace the fuse and use lower volume.
• The speaker cord is shorted.
• After check the speaker cord and fixing the
cause of the short, replace the fuse.
• The input sensitivity adjusting control is
• Adjust the control correctly referring to
not set to the correct position.
<Controls>.
• Connect them properly checking the ª/·
• The speakers wire are connected with
wrong ª/·polarity.
of the terminals and wires well.
• A speaker wire is pinched by a screw in
• Connect the speaker wire again so that it is
the car body.
not pinched by anything.
• The switches may be set improperly.
• Set switches properly by referring to
<Controls>.
General
Operating voltage ................................14.4 V (11 – 16 V allowable)
Current consumption ............................................................................21 A
Dimensions (W × H × D) ......................................165 × 45 × 99 mm
6-1/2 × 1-3/4 × 3-7/8 inch
Weight ....................................................................................0.76 kg (1.7 lbs)
(Bridged connection: 4 Ω to 8 Ω allowable)
CEA-2006
RMS Watts per channel @ 4 ohms, ≤ 1% THD+N
.....................................................................................50 W × 4
Signal to noise ratio
(Reference: 1Watt into 4 ohms) ......................74 dBA
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