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Connecting the Unit
CAUTION
• Disconnect the negative (–) terminal of the battery
• Make sure that wires will not interfere with mov-
to avoid the risk of short-circuit and damage to
ing parts of the vehicle, such as the gearshift,
the unit.
handbrake or seat sliding mechanism.
• Secure the wiring with cable clamps or adhesive
• Do not shorten any wires. Otherwise the protec-
tape. To protect the wiring, wrap adhesive tape
tion circuit may fail to work when it should.
around it where they lie against metal parts.
• Never feed power to other equipment by cutting
• Do not route wires where they will get hot, for
the insulation of the power supply wire to tap
example where the heater will blow over them. If
from the wire. The current capacity of the wire
the insulation heats up, it may become damaged,
will be exceeded, causing overheating.
resulting in a short-circuit through the vehicle
• Never replace the fuse with one of greater value
body.
or rating than the original fuse. Use of an improp-
er fuse could result in overheating and smoke and
could cause damage to the product and injury
including burns.
CAUTION:
To prevent damage and/or injury
• Do not ground the speaker wire directly or con-
• Speakers to be connected to the amplifier should
nect a negative (–) lead wire for several speakers.
conform with the standards listed below. If they
• This unit is for vehicles with a 12-volt battery and
do not conform, they may catch fire, emit smoke
negative grounding. Before installing it in a recre-
or become damaged. The speaker impedance must
ational vehicle, truck or bus, check the battery
be 2 to 8 ohms for stereo connection, and 4 to 8
voltage.
ohms for monaural and other bridge connection.
• If the car stereo is kept on for a long time while
• Install and route the separately sold battery wire
the engine is at rest or idling, the battery may go
as far away as possible from the speaker wires.
dead. Turn the car stereo off when the engine is at
Install and route the separately sold battery wire,
rest or idling.
ground wire, speaker wires and the amplifier as
• If the system remote control wire of the amplifier
far away as possible from the antenna, antenna
is connected to the power terminal through the
cable and tuner.
ignition switch (12 V DC), the amplifier will
• Cords for this product and those for other prod-
always be on when the ignition is on— regardless
ucts may be different colors even if they have the
of whether the car stereo is on or off. Because of
same function. When connecting this product to
this, the battery could go dead if the engine is at
another product, refer to the supplied Installation
rest or idling.
manuals of both products and connect cords that
have the same function.
Speaker Channel
Speaker Type
Power
Subwoofer
Nominal input: Min. 150 W
Two-channel
Other than subwoofer
Max. input: Min. 300 W
Subwoofer
Nominal input: Min. 600 W
One-channel
Other than subwoofer
Max. input: Min. 1 200 W
Connection Diagram
• This diagram shows connections using external output (subwoofer output). Slide the input switch to the left.
• When you connect with speaker output, connections defers from the diagram. For details, see the "Using the
Speaker Input" section. In either case, you need to set the input switch. For details, see the "Setting the Unit"
section.
Fuse (30 A)
Special red battery wire [RD-223] (sold separately)
After making all other connections at the amplifier,
connect the battery wire terminal of the amplifier to
the positive (+) terminal of the battery.
Grommet
Fuse (30 A)
Ground wire (black) [RD-223] (sold separately)
Connect to metal body or chassis.
External Output
Bass Boost
Car stereo with
Remote Control
Bass Boost Remote
RCA output jacks
Control Wire
6 m
Jack for the bass boost remote control
Connect this jack and the bass boost
Connecting wire with RCA
remote control with the bass boost
pin plugs (sold separately).
remote control wire.
RCA input jack
RCA output jack
Fuse (30 A)
Speaker output terminal
Amplifier with
See the "Connecting
RCA input jacks
the Speaker Wires"
RCA input
section for speaker
connection instructions.
System remote control wire (sold separately)
Connect the male terminal of this wire to the system remote control terminal of the car stereo (SYSTEM
REMOTE CONTROL). The female terminal can be connected to the auto-antenna relay control
terminal. If the car stereo does not have a system remote control terminal, connect the male terminal to
the power terminal through the ignition switch.
Connecting the Power Terminal
4. Connect the wires to the terminal.
• Fix the wires securely with the terminal
• Always use the special red battery and ground
screws.
wire [RD-223], which is sold separately. Connect
GND terminal
the battery wire directly to the car battery positive
terminal (+) and the ground wire to the car body.
Power terminal
System remote
control terminal
1. Pass the battery wire from the
engine compartment to the interior
System remote
of the vehicle.
control wire
• After making all other connections to the
amplifier, connect the battery wire terminal of
the amplifier to the positive (+) terminal of
the battery.
Engine
Fuse (30 A)
compart-
Interior of
ment
the vehicle
Battery wire
WARNING
Fuse (30 A)
Drill a 14 mm
Failure to securely fasten the battery wire to the ter-
Positive terminal
hole into the
minal using the terminal screws could cause the ter-
vehicle body.
Insert the O-ring rubber
minal area to overheat and could result in damage
grommet into the vehicle
and injury including minor burns.
body.
2. Twist the battery wire, ground wire
and system remote control wire.
Twist
3. Attach lugs to wire ends. Lugs not
supplied.
• Use pliers, etc., to crimp lugs to wires.
Lug
Ground wire
Lug
Battery wire
Connecting the Speaker Output
Using the Speaker Input
Terminals
Connect the car stereo speaker output
wires to the amplifier using the supplied
speaker input wire with RCA pin cord.
1. Expose the end of the speaker wires
• Slide the input switch to the right.
using nippers or a cutter by about
7 Connections when using the speaker
10 mm and twist.
input
Twist
10 mm
Ground wire
2. Attach lugs to speaker wire ends.
Lugs not supplied.
• Use pliers, etc., to crimp lugs to wires.
Lug
Speaker wire
White:
3. Connect the speaker wires to the
Left + Left ≠
speaker output terminals.
• Fix the speaker wires securely with the termi-
nal screws.
Terminal screw
To RCA
Speaker
input jack of
output
this unit.
terminal
• As a result of connecting the car stereo speaker
Speaker wire
output wire to the amplifier, the power of the
amplifier is turned on automatically when the car
stereo is turned on. It is not necessary to connect
the system remote control wire in this case.
Note:
• Connect the system remote control wire when the
power of the amplifier is not to be turned on when
the car stereo is turned on.
<ENGLISH>
Car Stereo
Speaker
output
Black:
Black:
Red:
Right ≠ Right +
Speaker input
wire with RCA
pin cord
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