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Kenwood KAC-5201 User Manual

Instruction manual, Installation procedure, Installation

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Installation procedure

1. Remove the ignition key and disconnect the

negative - terminal of the battery to prevent
short circuits.

2. Set the unit according to the intended usage.
3. Connect the input and output cables of the

units.

4. Connect the speaker wires.
5. Connect the power wire, power control wire

and grounding wire following this order.

6. Install the unit in the car.
7. Connect the negative - terminal of the battery.

To prevent fire caused by a short in the wiring,
connect a fusible link or breaker nearby the
battery’s positive terminal.

• Be sure to turn the power off before changing the

setting of any switch.

• If the fuse blows, check wires for shorts, then

replace the fuse with one of the same rating.

• Check that no unconnected cables or connectors

are touching the car body. Do not remove caps from
unconnected cables or connectors to prevent short
circuits.

• Connect the speaker wires to appropriate speaker

connectors separately. Sharing the negative wire of
the speaker or grounding speaker wires to the metal
body of the car can cause this unit to fail.

• After installation, check that the brake lamps,

winkers, and wipers work properly.

Speaker level input terminals (!)

• The genuine-accessory car stereo shall have a

maximum power output of no more than 40 W.

• Do not connect the speaker output leads from

a power amplifier (Optional) to the speaker
level 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 level 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.

Power terminal (234)

Connect to their respective terminals the power
supply wire, and ground wire, all of which pass
through the associated terminal cover. Once the
connections are complete, place the cover on
the terminal section.

Accessories

Installation

Since the power amplifier has no parts which require
operation, it can be installed at a position away from
the driver’s seat without any hindrances.
As generally accepted positions for its installation,
places such as inside the trunk, etc. can be
considered.

• Do not install the unit under the carpet. Otherwise

heat build-up occurs and the unit may be damaged.

• Install this unit in a location which allows heat to

easily dissipate. Once installed, do not place any
object on top of the unit.

• The surface temperature of the amplifier will

become hot during use. Install the amplifier in a
place where people, resins, and other substances
that are sensitive to heat will not come into contact
with it.

• When making a hole under a seat, inside the trunk,

or somewhere else in the vehicle, check that there
is nothing hazardous on the opposite side such as a
gasoline tank, brake pipe, or wiring harness, and be
careful not to cause scratches or other damage.

• Do not install near the dashboard, rear tray, or air

bag safety parts.

• The installation to the vehicle should securely fasten

the unit to a place in which it will not obstruct
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

2CAUTION

2WARNING

KAC-6201

KAC-5201

POWER AMPLIFIER

INSTRUCTION MANUAL

© B64-2558-00/00 (KV/EV)

Take the time to read through this instruction manual.
Familiarity with installation and operation procedures will help
you obtain the best performance from your new power amplifier.

For your records

Record the serial number, found on the back of the unit, in the spaces
designated on the warranty card, and in the space provided below.
Refer to the model and serial numbers whenever you call upon your
KENWOOD dealer for information or service on the product.
Model KAC-6201/5201 Serial number

Specifications

Specifications subject to change without notice.
Audio Section ........................................................................KAC-6201

KAC-5201

Max Power Output ..............................................................................................350 W

× 1

250 W

× 1

Rated Power Output (4

Ω)

Normal (20 Hz – 20 kHz, 0.08 % THD)................................................................60 W

× 2

40 W

× 2

Normal (DIN45324, +B=14.4 V) ..........................................................................60 W

× 2

40 W

× 2

Bridge (1 kHz, 0.8 % THD) ................................................................................150 W

× 1

120 W

× 1

Rated Power Output (2

Ω)

Normal (1 kHz, 0.8 % THD) ................................................................................75 W

× 2

60 W

× 2

Frequency Response (+0, –1 dB) ..................................................................10 Hz – 45 kHz

5 Hz – 50 kHz

Signal to Noise Ratio ..................................................................................................100 dB

100 dB

Sensitivity (MAX) (rated output) ....................................................................................0.2 V

0.2 V

Sensitivity

(MIN) (rated output) ......................................................................................5.0 V

5.0 V

Input Impedance ..........................................................................................................10 k

10 k

Low Pass Filter (12 dB/oct.) ..........................................................................................80 Hz

80 Hz

High Pass Filter (12 dB/oct.) (KAC-6201 only) ............................................................150 Hz

General....................................................................................KAC-6201

KAC-5201

Operating Voltage (11 – 16 V allowable) ......................................................................14.4 V

14.4 V

Current Consumption (1 kHz, 10% THD) ......................................................................19 A

16 A

Dimensions (W

× H × D)[mm] ........................................................................228 Ч 59 Ч 228

228

Ч 59 Ч 160

Dimensions (W

× H × D)

[inch] ..........................................................................9

Ч 2-5/16 Ч 9

9

Ч 2-5/16 Ч 6-5/16

Weight ............................................................................................................2.8 kg (6.1 lbs)

2.1 kg (4.6 lbs)

....................................................................................

Weight ............................................................................

Safety precautions

To prevent injury or fire, take the following
precautions:
• When extending the ignition, battery, or ground

wires, make sure to use automotive-grade wires or
other wires with a 3mm

2

(AWG12) or more to

prevent wire deterioration and damage to the wire
coating.

• To prevent a short circuit, never put or leave any

metallic objects (such as coins or metal tools) inside
the unit.

• If the unit starts to emit smoke or strange smells,

turn off the power immediately and consult your
Kenwood dealer.

• Do not touch the unit during use because the surface

of the unit becomes hot and may cause burns if
touched.

To prevent damage to the machine, take the
following precautions:
• Be sure the unit is connected to a 12V DC power

supply with a negative ground connection.

• Do not open the top or bottom covers of the unit.
• Do not install the unit in a spot 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 installation,

consult your Kenwood dealer.

• If the unit does not seem to be working right, consult

your Kenwood dealer.

FCC WARNING

This equipment may generate or use radio frequency
energy. Changes or modifications to this equipment
may cause harmful interference unless the
modifications are expressly approved in the instruction
manual. The user could lose the authority to operate
this equipment if an unauthorized change or
modification is made.

Cleaning the unit

If the front panel gets dirty, turn off the power and
wipe the panel with a dry silicon cloth or soft cloth.

Do not wipe the panel with a hard cloth or a cloth
dampened by volatile solvents such as paint thinner
and alcohol. They can scratch the surface of the panel
and/or cause the indicator letters to peel off.

Wiring

• If a buzzing noise is heard from the speakers

when the engine is running, connect a line noise
filter (optional) to each of the battery wire.

• Do not allow the wire to directly contact the edge

of the iron plate by using Grommets.

• Connect the ground wire to a metal part of the

car chassis that acts as an electrical ground
passing electricity to the battery‘s negative -
terminal. Do not turn the power on if the ground
wire is not connected.

• Be sure to install a protective fuse in the power

cord near the battery. The protective fuse should
be the same capacity as the unit’s fuse capacity
or somewhat larger.

• For the power cord and ground, use a vehicle

type (fireproof) power wring cord with a current
capacity greater than the unit’s fuse capacity.
(Use a power wiring cord with a diameter of 3
mm

2

(AWG 12) or greater.)

• When more than one power amplifier are going

to be used, use a power supply wiring wire and
protective fuse of greater current-handling
capacity than the total maximum current drawn
by each amplifier.

Speaker Selection

• The rated input power of the speakers that are

going to be connected should be greater than
the maximum output power (in Watts) of the
amplifier. Use of speakers having input power
ratings that are less than the output power of
the amplifier will cause smoke to be emitted as
well as damage.

• The impedance of the speakers that are going to

be connected should be 2

Ω or greater (for

stereo connections), or 4

Ω or greater (for

bridged connections). When more than one set
of speakers are going to be used, calculate the
combined impedance of the speakers and then
connect suitable speakers to the amplifier.

2CAUTION

NOTE

2CAUTION

2WARNING

Part name

Number of

Items

External

View

Terminal cover

(Power terminal)

1

Self-tapping screws

(ш4

Ч 16 mm)

4

Installation board, etc.
(thickness : 15 mm or more)

Self-tapping screw
(ш4

Ч 16 mm)

PROBLEM

POSSIBLE CAUSE

SOLUTION

No sound.
(No sound from one side.)

(Blown fuse.)

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.

• Volume is too high.

• The speaker cord is shorted.

The input sensitivity adjusting
control is not set to the correct
position.

• The speakers wire are

connected with wrong + / -
polarity.

• A speaker wire is pinched by a

screw in the car body.

• The switches may be set

improperly.

• Connect the input (or output)

cables.

• Check connections by referring

to "Power indicator".

• Replace the fuse and use lower

volume.

• After check the speaker cord and

fixing the cause of the short,
replace the fuse.

Adjust the control correctly
referring to "Controls".

• Connect them properly checking

the + / - of the terminals and
wires well.

• Connect the speaker wire again

so that it is not pinched by
anything.

• Set switches properly by

referring to "System examples".

8

2

4

4

4

4

Troubleshooting Guide

What might appear to be a malfunction in your unit may just be the result of slight
misoperation or miswiring. Before calling service, first check the following table for possible
problems.

KAC-6_5201(KE)1En 02.10.16 10:10 AM Page 1

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