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 (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.
Ground wire (Black) [RD-223] (sold separately)
Connect to metal body or chassis.
Connecting the Power Terminal
•Always use the special red battery and ground wire [RD-223], which is sold separately. Connect the battery wire directly to the car battery positive terminal (+) and the ground wire to the car body.
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.
Engine | |
Fuse (30 A) compart- | Interior of |
ment | the vehicle |
4.Connect the wires to the terminal.
•Fix the wires securely with the terminal screws.
GND terminal
Power terminal | System remote |
| control terminal |
| System remote |
| control wire |
| Ground wire |
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>
•For four-channel input, connect two speaker input wires with RCA pin cord to RCA input jack A and B. Be sure to slide the input select switch to the right.
•For two-channel input, connect the speaker input wire with RCA pin cord to RCA input jack A. Do not connect anything to RCA input jack B. Be sure to slide the input select switch to the left.
7Connections when using the speaker input
Car stereo
CAUTION:
To prevent damage and/or injury
•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 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.
•Speakers to be connected to the amplifier should conform with the standards listed below. If they do not conform, they may catch fire, emit smoke or become damaged. The speaker impedance must be 2 to 8 ohms. But in case of two-channel and other bridge connections, the speaker impedance must be 4 to 8 ohms.
•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 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 manuals of both products and connect cords that have the same function.
External Output
If only one input plug is used, do not connect anything to RCA input jack B.
Connecting wire with RCA pin plugs (sold separately).
RCA output jack
Car stereo with RCA output jacks
RCA input jack B
Drill a 14 mm hole into the
Insert the O-ring rubber vehicle body. grommet into the vehicle
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.
Battery wire
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 wire
3.Connect the speaker wires to the speaker output terminals.
•Fix the speaker wires securely with the termi- nal screws.
Terminal screw
Speaker | Speaker wire |
output |
terminal | |
Speaker output
White: Black: | Black: Red: |
Left + Left ≠ | Right ≠ Right + |
Speaker input wire with RCA pin cord
To RCA input jack of this unit.
| Speaker Channel | Speaker Type | Power |
| Four-channel | Subwoofer | Nominal input: Min. 70 W |
| | |
| Other than subwoofer | Max. input: Min. 150 W |
| |
| | | |
| Two-channel | Subwoofer | Nominal input: Min. 200 W |
| | |
| Other than subwoofer | Max. input: Min. 600 W |
| |
| | | |
| Three-channel | Subwoofer | Nominal input: Min. 70 W |
| | | |
| Speaker output A | Other than subwoofer | Max. input: Min. 150 W |
| | | |
| Three-channel | Subwoofer | Nominal input: Min. 200 W |
Fuse (30 A) ⋅ 2 | Speaker output terminal | | | | | |
| | | | |
| See the “Connecting the | | | | |
| Speakers and Input | | | | |
| | | | |
| Wires” section for | | | |
| speaker connection | | | |
| instructions. | | | |
RCA input jack A
Amplifier with
RCA input jacks
RCA input
Lug
Ground wire
Lug
Battery wire
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.
•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.
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.
