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• The genuine-accessory car stereo shall have a maximum power output of no more than 25 W.
• Do not connect the speaker output leads from a power amplifier (Optional) to the speaker input

terminals of this unit, for this may cause malfunction  or damage. 

• Do not connect cables and leads to both RCA cable input jacks and the speaker input terminals

simultaneously, for this may cause malfunction or damage.

• Connect the power control lead to a power supply which can be turned ON/OFF by the ignition

key switch (ACC line). 
With this connection, shock noise may be generated when the power of the genuine-accessory
car stereo is switched ON/OFF.

2

CAUTION

6

English

Connection 

GND

LINE IN

MAX

30

200

0.3

0.5 50

170

120

1.0

90

MIN

INPUT SENSITIVITY(V)

BASS

ENPHASIS

POWER IN

GND

FUSE(25A)

BATT

P.CON(REMOTE)

OFF

ON

LEFT

LOWPASS FILTER

FREQUENCY(Hz)

L

R

RIGHT

SPEAKER LEVEL INPUT

25

-

+

GND

LINE IN

MAX

30

200

0.3

0.5 50

170

120

1.0

90

MIN

INPUT SENSITIVITY(V)

BASS

ENPHASIS

POWER IN

GND

FUSE(25A)

BATT

P.CON(REMOTE)

OFF

ON

LEFT

LOWPASS FILTER

FREQUENCY(Hz)

L

R

RIGHT

SPEAKER LEVEL INPUT

25

RCA cable connection

CENTER UNIT

(Cassette receiver, 

CD receiver, etc.)

Power control cable
(Commercially
available part)

RCA cable
(Commercially
available part)

Do not connect cables and leads
to both RCA cable input  jacks
and the speaker input terminals
simultaneously,  for this may
cause malfunction or damage.

2

CAUTION

GN

D

RCA cable ground terminal

When using an RCA cable with
a ground lead attached, connect
the ground lead to this terminal.

Do not use this terminal for power source
grounding. This unit will be damaged if the
power source grounding wire is connected
to this terminal.

2

CAUTION

Genuine-accessory

car stereo

Speaker level input connection

ACC

Battey

Left output (White)

Right output (Red)

Left input

Right input

Left input

Right input

Left output 

Right output 

Lead terminal
(Commercially
available parts)

Speaker level input terminals

Car fuse
box

Summary of Contents for KAC-718

Page 1: ...KAC 718 B64 1357 00 EM MONO POWER AMPLIFIER INSTRUCTION MANUAL ...

Page 2: ... exposed to direct sunlight or excessive heat or humidity Also avoid places with too much dust or the possibility of water splashing When replacing a fuse only use a new one with the prescribed rating Using a fuse with the wrong rating may cause your unit to malfunction To prevent a short circuit when replacing a fuse first disconnect the wiring harness If you experience problems during installati...

Page 3: ...ct driving If the unit comes off due to a shock and hits a person or safety part it may cause injury or an accident After installing the unit check to make sure that electrical equipment such as the brake lamps turn signal lamps and windshield wipers operate normally 2CAUTION Installation board etc thickness 15 mm or more Self tapping screw ø4 16 mm 1 Remove the ignition key and disconnect the neg...

Page 4: ...ntrol Set this control according to the pre output level of the center unit connected with this unit or to the maximum power output of the genuine accessory car stereo Use the diagram on the right as a guide For the pre output level or the maximum power output refer to the Specifications in the instruction manual of the center unit 4 LOW PASS FILTER FREQUENCY control This control adiusts the frequ...

Page 5: ...etc or this unit is not connected to a metal part serving as an electrical ground passing electricity to the battery s negative terminal MONO POWER AMPLIFIER MONO SPEAKER OUTPUT Power indicator Connection Speakers cable connection MONO POWER AMPLIFIER MONO SPEAKER OUTPUT MONO SPEAKER OUTPUT Lead terminal Commercially available parts Subwoofer Speaker Selection The rated input power of the speakers...

Page 6: ...T 25 GND LINE IN MAX 30 200 0 3 0 5 50 1 70 120 1 0 90 MIN INPUT SENSITIVITY V BASS ENPHASIS POWER IN GND FUSE 25A BATT P CON REMOTE OFF ON LEFT LOWPASS FILTER FREQUENCY Hz L R RIGHT SPEAKER LEVEL INPUT 25 RCA cable connection CENTER UNIT Cassette receiver CD receiver etc Power control cable Commercially available part RCA cable Commercially available part Do not connect cables and leads to both R...

Page 7: ...tach a protective fuse into the battery wire close to the battery Use a protective fuse having a capacity that is about 10 A higher than the maximum current drawn by the amplifier Use vehicle type fire resistant power supply wiring wire for the battery wire and the ground wire The current capacity of the power supply wiring wire should be about 10 A higher than that of the protective fuse capacity...

Page 8: ...irst check the following table for possible problems PROBLEM POSSIBLE CAUSE SOLUTION No sound No sound from one side The output level is too small or too large The sound quality is bad The sound is distorted Input or output cables are disconnected Protection circuit may be activated The fuse may be blown because the volume was too high The input sensitivity adjusting control is not set to the corr...

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