Kenwood KAC-816 Instruction Manual Download Page 6

• 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

Connection 

MONO

POWER AMPLIFIER

L

25Hz

15Hz

INFRASONIC

OFF

INPUT

SENSITIVITY(V)

LPF

FREQUENCY(Hz)

GND

R

LINE IN

0.3

0.5

1

2

3

4

5

0.2

150

100

70

50

200

LEFT

RIGHT

SPEAKER LEVEL INPUT

-

+

MONO

POWER AMPLIFIER

L

25Hz

15Hz

INFRASONIC

OFF

INPUT

SENSITIVITY(V)

LPF

FREQUENCY(Hz)

GND

R

LINE IN

0.3

0.5

1

2

3

4

5

0.2

150

100

70

50

200

LEFT

RIGHT

SPEAKER LEVEL INPUT

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

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

Summary of Contents for KAC-816

Page 1: ...KAC 816 MONO POWER AMPLIFIER INSTRUCTION MANUAL PRINTED IN MEXICO B64 1170 00 EM ...

Page 2: ...with a negative ground connection Do not open the top or bottom cover Do not install the unit in places it is exposed to direct sunlight high heat or humidity water may splash over it or dust exists If you have difficulty in installing this unit in your vehicle contact your Kenwood dealer Cleaning the unit If the surface is dirty wipe it clean with a silicon cloth or soft dry cloth with the power ...

Page 3: ...ed usage 3 Connect the input and output cables of the units 4 Connect the center unit and this unit according to the required application 5 Connect the speaker cables and sigma servo feed back cables 6 Connect the power cable power control cable and grounding cable following this order 7 Install the unit in the car 8 Connect the negative terminal of the battery 9 Turn power ON and ensure that soun...

Page 4: ...ections to the SIGMA SERVO FEED BACK terminals Incorrect connection may result in lack of sound output or other malfunctions 7 INFRASONIC FILTER switch Ultralow frequencies that cannot be reproduced even by a subwoofer speaker do not become sound but become unnecessary oscillations which affect the sound by causing distortion etc Setting this switch to 15 Hz or 25 Hz cuts the frequencies below the...

Page 5: ... off and the amplifier stops operating A speaker cable may be short circuited A speaker output may be in contact with the ground The temperature of the internal parts may be higher than 120 C 248 F The sigma servo connection may be erroneous The fuse of this unit may be blown The unit may be malfunctioning and sending DC signal to the speaker output The grounding cable of this unit may not be conn...

Page 6: ...VEL INPUT MONO POWER AMPLIFIER L 25Hz 15Hz INFRASONIC OFF INPUT SENSITIVITY V LPF FREQUENCY Hz GND R LINE IN 0 3 0 5 1 2 3 4 5 0 2 150 100 70 50 200 LEFT RIGHT SPEAKER LEVEL INPUT 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 t...

Page 7: ...e engine is running connect a line noise filter optional to each of the battery cable Do not allow the cord to directly contact the edge of the iron plate by using Grommets Terminal cover Fire wall Grommets Battery Ground cable Black Battery cable Yellow Round terminal Large Power control cable Power terminal Pass battery and ground cables through supplied terminal cover and connect to respective ...

Page 8: ...vo terminals etc If the Sigma servo terminals are not connected the sound may fluctuate or noise may occur Be sure to connect the Sigma servo terminals correctly When connecting speakers in a parallel configuration use speakers with an impedance of 4 ohms or more Connecting speakers with smaller impedance than 4 ohms will cause malfunction The rated input of the speakers connected to this unit sho...

Page 9: ...alling service first 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 The connection of the sigma servo terminals is wrong Protection circuit may be activated The fuse may be blown because the volume was to...

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