Connecting the Unit

Connection Diagram

•This diagram shows connections using external output. Slide the input switch to the left (RCA).

•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 defer 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.

Grommet

Fuse (40 A) ⋅ 2

Bass Boost

Remote Control

6 m (19 ft. 8 in.)

Special red battery wire [RD-228] (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-228] (sold separately) Connect to metal body or chassis.

Car stereo with

RCA output jacks

External Output

Jack for the bass boost remote control Connect this jack and the bass boost remote control with the bass boost remote control wire.

Connecting wire with RCA pin plugs (sold separately).

RCA input jack

SYNC OUT/SYNC IN jack See the “Connecting the Speaker Wires” section for SYNC OUT- PUT/SYNC INPUT jack connection instructions.

7

 

Speaker output terminal

Fuse (40 A) ⋅ 2

See the “Connecting the Speaker Wires” 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.