KENWOOD KAC-PS401M - Owner's Manual Immediate Download

KAC-PS401M

MONO POWER AMPLIFIER

INSTRUCTION MANUAL

2 English

Safety precautions

Installation procedure

Since there are large variety of settings and

connections possible according to applications,

read the instruction manual well to select the

proper setting and connection.

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 cables and sigma servo

feed back cables.

5. Connect the power cable, power control

cable and grounding cable following this

order.

6. Install the unit in the car.

7. Connect the negative - terminal of the

battery.

· If sound is not output normally, immediately

turn power off and check connections. Be

sure to perform the sigma servo connection

correctly.

· Be sure to make correct connections of the

sigma servo terminals.

· Be sure to turn the power off before

changing the setting of any switch.

· If the fuse blows, check cables 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.

2CAUTION

To prevent injury or fire, take the following

precautions:

· When extending the ignition, battery, or

ground cables, make sure to use automotive-

grade cables or other cables with a 5mm

2

(AWG10) or more to prevent cable

deterioration and damage to the cable

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.

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.

Accessories

2CAUTION

NOTE

2CAUTION

2WARNING

Part name

Number of

Items

External

View

Terminal cover

(Power terminal)

1

Self-tapping screws

(ø5

× 18 mm)

4

English

3

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.

· Use the extension cables. (Optional.)

· 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.

· This unit has cooling fans to decrease the internal temperature. Be careful not to block the

cooling fan openings when installing the unit. Blocking these openings will inhibit the cooling of

the internal temperature and result in malfunction.

· 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

,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

Installation board, etc.

(thickness : 15 mm or more)

Self-tapping screw

CA-2SL

CA-12SL

CA-22SL

CA-52SL

RCA cable

CA-3WL

CA-13WL

CA-23WL

CA-53WL

RCA cable (ø7mm)

CA-5W

CA-15W

CA-25W

CA-45W

CA-65W

RCA cable (ø12mm)

0.5m

1m

2m

4m

5m

6m

Type

Length

Cooling fan

Air inlet

Installation procedure

· Connect the speaker cables to appropriate

speaker connectors separately. Sharing the

negative cable of the speaker or grounding

speaker cables 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.

4 English

Controls

L

R

OUT

LINE IN

P.CON

GND

EXT.AMP.CONT.

30

15

20 25

ON

OFF

ON

OFF

ON

OFF

INFRASONIC

BAND

REJECT

LPF

FREQ (Hz)

B.M.S.

(

+6)

B.M.S.

(REMOTE)

CLOSE

OPEN/

SPEAKER OUTPUT

FUSE(15A

×4 )

+

BATT.

GND

15

SERVO II

FEED BACK

1

4

5

2 3

67

8 90

30

15

20 25

ON

OFF

ON

OFF

ON

OFF

INFRASONIC

BAND

REJECT

LPF

FREQ (Hz)

(MIN)

(MAX)

5

4

3

2

1

0.5

0.2

50

40

200

INPUT

SENSITIVITY

B.R.F.

FREQUENCY

LO PASS

FREQUENCY

&$

^@

#

!

%

0.5

1

Fuse (15 A

× 4)

2

Battery terminal

3

Ground terminal

4

SPEAKER OUTPUT terminals

As this unit accepts speakers with a

minimum impedance of 2 ohms, connect

speakers with 2-ohm or higher impedance

to these terminals.

The rated input of the speakers should be

no less than the maximum output of the

amplifier. Otherwise malfunction may

result.

5

SIGMA SERVO FEED BACK

terminals (See p.11)

Be sure to make proper connections to the

SIGMA SERVO FEED BACK terminals.

Incorrect connection may result in lack of

sound output or other malfunctions.

6

RCA cable ground lead terminal

7

LINE IN terminal

8

LINE OUT terminal

9

Power control terminal

0

EXT.AMP.CONT. (external

amplifier control) terminal

This controls the B.M.S. (See P.6).

!

INPUT SENSITIVITY control

Adjust this control according to the pre-out

level of the centre unit connected to this

amplifier.

Refer to "Specifications" on the centre

unit's instruction manual about the pre-out

level.

@

Low Pass Filter switch

When this switch is set to ON, the bass is

boosted because the frequencies of the

lower frequency band than the cutoff

frequency set with the LPF FREQUENCY

control are output.

#

LPF FREQUENCY control

Sets the cutoff frequency when the FILTER

switch is set to LPF.

$

BAND REJECT filter switch

When this switch is set to ON, frequencies

in the band set with the BAND REJECT

FREQUENCY control are rejected and

eliminated. The band rejection allows to

reduce resonance inside the vehicle

compartment and standing waves. (See

P.12)

%

BAND REJECT FREQUENCY

control

Sets the rejection frequency when the

BAND REJECT switch is set to ON.

(See P.12)

^

INFRASONIC FILTER switch

When this switch is set to ON, the

inaudible, ultralow frequencies below the

frequency set with the INFRASONIC

FILTER FREQUENCY switch are cut off.

This improves the reproduction

performance of the speakers by eliminating

unnecessary oscillations which will not

become sound.

&

INFRASONIC FILTER FREQUENCY

switch

Switches the cutoff frequency when the

INFRASONIC FILTER switch is set to ON.

NOTE

2CAUTION

*

POWER indicator

This indicator glows when the unit's power

is turned ON.

(

COOLING FAN indicator

When the unit's internal temperature rises,

the slide panel opens automatically and the

cooling fan is activated.

The cooling fan is also activated when the

slide panel is opened.

Whilst the cooling fan is in operation, the

COOLING FAN indicator blinks.

)

OPERATION/PROTECTION

indicator

This indicator glows when the power

comes ON normally.

If the PROTECTION function is activated,

the indicator blinks or goes out.

@1

LOW VOLTAGE indicator

This indicator glows when the power

voltage falls below 11V (volts).

If the power supply voltage returns to full

after a voltage drop, this indicator will blink

to alert the user that a voltage drop has

occurred.

The number of blinks indicates the number

of times the voltage has dropped (up to a

maximum of 10).

@2

B.M.S. indicator

This indicator glows when the bass boost is

turned ON using the B.M.S. (See P.6).

If indicators !9 to @2 light up in succession or

blink in unison, the system is in DEMO mode.

If this happens, cancel DEMO mode by

pressing the OPEN/CLOSE button.

s PROTECTION function

This unit incorporates a protection function

which protects the main unit and speakers

from troubles. The unit stops to function

when the protection function is activated.

· When the OPERATION/

PROTECTION indicator blinks:

· 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 fuse of this unit may be blown.

· The unit may be malfunctioning and

sending DC signal to the speaker output.

· The sigma servo connection may be

erroneous.

Cancelling: turn the accessory power

source (ACC) OFF, then back ON.

· When the POWER indicator and the

OPERATION/PROTECTION function

both go out:

· The fuse of this unit may be blown.

· When the LOW VOLTAGE indicator

glows or blinks:

· Is the battery exhausted?

· The car battery has a small capacity.

· If the battery cable is too thin or too long,

it will not be able to supply enough

power.

· Is the battery cable deteriorated?

NOTE

English

5

e Xce l on

AIR

INDUCTION

COOLING FAN

OPERATION/PROTECTION

OPEN/CLOSE

LOW VOLTAGE

B.M.S.

(MIN)

(MAX)

5

4

3

2

1

0.5

0.2

50

100

50

40

200

B.M.S.

FREQUENCY

INPUT

SENSITIVITY

B.R.F.

FREQUENCY

LO PASS

FREQUENCY

POWER

AIR

INDUCTION

COOLING FAN

OPERATION/PROTECTION

OPEN/CLOSE

LOW VOLTAGE

B.M.S.

(MIN)

(MAX)

5

4

3

2

1

0.5

0.2

50

100

50

40

200

B.M.S.

FREQUENCY

INPUT

SENSITIVITY

B.R.F.

FREQUENCY

LO PASS

FREQUENCY

POWER

MONO POWER AMPLIFIER

COOLING FAN

OPERATION/PROTECTION

OPEN/CLOSE

LOW VOLTAGE

B.M.S.

*

(

)

@1

@2