Connecting the Unit
CAUTION
•Disconnect the negative (–) terminal of the battery to avoid the risk of short-circuit and damage to the unit.
•Secure the wiring with cable clamps or adhesive tape. To protect the wiring, wrap adhesive tape around it where they lie against metal parts.
•Do not route wires where they will get hot, for example where the heater will blow over them. If the insulation heats up, it may become damaged, resulting in a short-circuit through the vehicle body.
•Make sure that wires will not interfere with mov- ing parts of the vehicle, such as the gearshift, handbrake or seat sliding mechanism.
•Do not shorten any wires. Otherwise the protec- tion circuit may fail to work when it should.
•Never feed power to other equipment by cutting the insulation of the power supply wire to tap from the wire. The current capacity of the wire will be exceeded, causing overheating.
•Never replace the fuse with one of greater value 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.
Connection Diagram
•This diagram shows connections using external output. Slide the input switch to the left.
•In the case of connecting the external output from a car stereo to an RCA input, use the jack used for full- range output. This is because the LPF of the amplifier cannot be turned OFF. If this jack cannot be used, connect the subwoofer output jack to the RCA input.
•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.
•Always use the special red battery and ground wire ([RD-223] and [RD-222]), which are sold separately. Connect the battery wire directly to the car battery positive terminal (+) and the ground wire to the car body. There is the risk of a fuse burning out if only one of these is connected.
| Grommet | Special red battery wire |
| After making all other connections at the amplifier, |
| |
| | connect the battery wire terminal of the amplifier to |
| | the positive (+) terminal of the battery. |
Connecting the Power Terminal
•Always use the special red battery and ground wire ([RD-223] and [RD-222]), which are sold separately. Connect the battery wire directly to the car battery positive terminal (+) and the ground wire to the car body. There is the risk of a fuse burning out if only one of these is connected.
1.Pass the battery wire from the engine compartment to the interior of the vehicle.
•After making all other connections to the amplifier, connect the battery wire terminal of the amplifier to the positive (+) terminal of the battery.
3.Attach lugs to wire ends. Lugs not supplied.
• Use pliers, etc., to crimp lugs to wires.
Lug
Ground wire
Lug
Battery wire
4. Connect the wires to the terminal. |
• Fix the wires securely with the terminal |
Connecting the Speaker Output Terminals
1.Expose the end of the speaker wires using nippers or a cutter by about 10 mm and twist.
Twist
10 mm
2.Attach lugs to speaker wire ends. Lugs not supplied.
• Use pliers, etc., to crimp lugs to wires.
<ENGLISH>
Using the Speaker Input
Connect the car stereo speaker output wires to the amplifier using the supplied speaker input wire with RCA pin cord.
• Slide the input switch to the right.
7Connections when using the speaker input
Car Stereo
Speaker output
• Do not ground the speaker wire directly or con- |
nect a negative (–) lead wire for several speakers. |
• This unit is for vehicles with a 12-volt battery and |
negative grounding. Before installing it in a recre- |
ational vehicle, truck or bus, check the battery |
voltage. |
• If the car stereo is kept on for a long time while |
the engine is at rest or idling, the battery may go |
dead. Turn the car stereo off when the engine is at |
rest or idling. |
• If the system remote control wire of the amplifier |
is connected to the power terminal through the |
ignition switch (12 V DC), the amplifier will |
always be on when the ignition is on— regardless |
• Connect either of three subwoofers to the amplifi- |
er; 1: a subwoofer with a 420 W or larger nominal |
input and an impedance 4 Ω, 2: a subwoofer with |
a 600 W or larger nominal input and an imped- |
ance 2 Ω or 3: a subwoofer with a 600 W or larg- |
er nominal input and an impedance 1 Ω. If the |
nominal input and impedance are out of the above |
ranges, the subwoofer may catch fire, emit smoke |
or become damaged. |
• Install and route the separately sold battery wire |
as far away as possible from the speaker wires. |
Install and route the separately sold battery wire, |
ground wire, speaker wires and the amplifier as |
far away as possible from the antenna, antenna |
[RD-222] (sold separately) | |
Bass Boost | Car stereo with |
Remote Control Bass Boost Remote | RCA output jacks |
Control Wire | |
6 m | |
Jack for the bass boost | |
Fuse (30 A) Positive terminal
Insert the O-ring rubber grommet into the vehicle body.
[RD-222] | Engine |
|
Fuse (30 A) compart- |
| ment |
Drill a 14 mm hole into the vehicle body.
Interior of the vehicle
control terminal |
System remote |
control wire |
Ground wire |
Battery wire
3.Connect the speaker wires to the speaker output terminals.
•Fix the speaker wires securely with the termi- nal screws.
Terminal screw
White: Black: | Black: Red: |
Left + Left ≠ | Right ≠ Right + |
Speaker input wire with RCA pin cord
To RCA input jack of this unit.
of whether the car stereo is on or off. Because of |
this, the battery could go dead if the engine is at |
rest or idling. |
• DO NOT connect a subwoofer with a lower |
impedance than specified in the “Connecting the |
Unit” section. Amplifier damage, smoke, and |
overheating could result from a non-specified con- |
nection. The amplifier surface could also become |
hot to the touch and minor burns could result. |
cable and tuner. |
• Cords for this product and those for other prod- |
ucts may be different colors even if they have the |
same function. When connecting this product to |
another product, refer to the supplied Installation |
manuals of both products and connect cords that |
have the same function. |
| remote control | Connecting wire with RCA |
| Connect this jack and |
| pin plugs (sold separately). |
| the bass boost remote |
| |
| control with the bass | |
| boost remote control | |
| wire. | RCA input jack |
| |
| | | SYNC OUTPUT/SYNC INPUT jack |
| Fuse (40 A) | Speaker output terminal |
| See the “Connecting the Speaker Wires” |
| | See the “Connecting the |
| | section for SYNC OUTPUT/SYNC |
| | Speaker Wires” section for |
| | INPUT jack connection instructions. |
| | speaker connection instruc- |
| | |
| | tions. | |
| | | |
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.
Positive terminal | | Drill an 8 mm |
|
Insert the O-ring rubber | |
| hole into the |
grommet into the vehicle | |
| vehicle body. |
body. | |
| |
2.Twist the battery wire, ground wire and system remote control wire.
Twist
WARNING
Failure to securely fasten the battery wire to the ter- minal using the terminal screws could cause the ter- minal area to overheat and could result in damage and injury including minor burns.
Speaker output terminal
Speaker wire
•As a result of connecting the car stereo speaker 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.
•In the case the amplifier and head unit are con- nected using a speaker input wire with RCA pin cord, the amplifier power is only turned on when one amplifier is being used. If two or more ampli- fiers are synchronously connected in combination, connect the head unit and all of the amplifiers with the system remote control wire.
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.