KENWOOD KAC-PS501F - Owner's Manual Immediate Download

KAC-PS501F

4-CHANNEL 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.

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.

· 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.

· 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.

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 10 mm

2

(AWG8) [5 mm

2 (AWG10)

× 2] 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

Exhaust outlet

4 English

Controls

This is a 4 channel amplifier including 2 stereo amplifiers in a body. One amplifier is referred to

as amplifier A and the other is amplifier B. This unit is compatible with a large variety of

systems by combining the switches and functions described in the following.

L

R

L

R

LINE IN

P.CON

EXT.AMP.CONT.

GND

MONO

LINE OUT

25Hz

15Hz

INFRASONIC

FILTER

OPERATION

OFF

0.2

0.5

5

1

2

3

4

B

A

+

(MAX)

(MIN)

25Hz

15Hz

INFRASONIC

FREQ (Hz)

OFF

LPF

OFF

HPF

MONO

STEREO

FILTER

LPF

OFF

HPF

OPERATION

MONO

STEREO

B.M.S.

FREQ(Hz)

B.M.S.

(

+6)

CLOSE

OPEN/ B.M.S.

(REMOTE)

INPUT SELECT

A

AB

CONTROL

INPUT SENSITIVITY(V)

0.2

0.5

5

1

2

3

4

100

50

80

(MAX)

(MIN)

INPUT SENSITIVITY(V)

A

CONTROL B

LEFT

BRIDGED

RIGHT

SPEAKER OUTPUT

FUSE(20A

×4)

BATT.

GND

B

A

20

$

%

*

@

25Hz

15Hz

INFRASONIC

FILTER

OPERATION

OFF

0.2

0.5

5

1

2

3

4

(MAX)

(MIN)

FREQ (Hz)

LPF

OFF

HPF

MONO

STEREO

INPUT SELECT

A

AB

CONTROL

INPUT SENSITIVITY(V)

A

#

1

4

2 3

78 9

6

0!

5

1

Fuse (20 A

× 4)

2

Battery terminal

3

Ground terminal

4

Amplifier A speaker output

terminals

5

Amplifier B speaker output

terminals

ySPEAKER OUTPUT terminals

· Stereo Connections:

When you wish to use the unit as a stereo

amplifier, stereo connections are used.

The speakers to be connected should

have an impedance of 2

or greater.

When multiple speakers are to be

connected, ensure that the combined

impedance is 2

or greater for each

channel.

· Bridged Connections:

When you wish to use the unit as a high-

output monaural amplifier, bridged

connections are used. (Make connections

to the LEFT channel (+) and the RIGHT

channel (-) SPEAKER OUTPUT terminals.)

The speakers to be connected should

have an impedance of 4

or greater.

When multiple speakers are to be

connected, ensure that the combined

impedance is 4

or greater.

The rated input of the speakers should be

no less than the maximum output of the

amplifier. Otherwise malfunction may

result.

6

RCA cable ground lead terminal

7

Amplifier A LINE IN terminal

8

Amplifier B LINE IN terminal

9

LINE OUT terminal

These jacks output respectively the signals

input to amplifiers A and B. They always

output the stereo signals regardless of the

position of the OPERATION switch.

0

Power control terminal

!

EXT.AMP.CONT. (external

amplifier control) terminal

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

2CAUTION

L

R

L

R

A

B

LO PASS

50

200

HI PASS

LO PASS

50

200

HI PASS

A

B

25Hz

15Hz

INFRASONIC

FILTER

OPERATION

OFF

25Hz

15Hz

INFRASONIC

FREQ (Hz)

OFF

LPF

OFF

HPF

MONO

STEREO

FILTER

LPF

OFF

HPF

OPERATION

MONO

STEREO

INPUT SELECT

A

AB

0.2

0.5

5

1

2

3

4

(MAX)

(MIN)

INPUT SENSITIVITY(V)

0.2

0.5

5

1

2

3

4

(MAX)

(MIN)

INPUT SENSITIVITY(V)

@#

$%

&

^

*

#1

#2

B.M.S.

FREQ(Hz)

B.M.S.

(

+6)

CLOSE

OPEN/ B.M.S.

(REMOTE)

100

50

80

#1 When FILTER is set to LPF, the sound is monaural (L+R).

#2 When INFRASONIC is set to 15Hz or 25Hz, the sound is monaural (L+R).

* Note that if OPERATION is set to MONO, Lch is still monaural.

Block diagram

@

INPUT SELECTOR switch

This switch selects the input method of the

signals to be amplified by amplifiers A and

B.

· A B position:

Amplifies both of the signals input to

amplifiers A and B.

· A position:

Amplifies only signal input amplifier A with

both amplifiers A and B.

#

INPUT SENSITIVITY control

Adjust this control according to the pre-out

level of the centre unit connected to this

amplifier.

The sensitivities of amplifiers A and B can

be adjusted independently regardless of the

position of the input selector switch.

Refer to "Specifications" on the centre

unit's instruction manual about the pre-out

level.

$

OPERATION switch

The amplification methods of the signals

input to amplifiers A and B can be selected

independently according to the setting of

this switch.

· STEREO position:

The amplifier can be used as a stereo

amplifier.

· MONO (Lch) position:

Amplifies the signal input from the left side

only. Set to this position and make bridged

connections to use as a high-power

monaural amplifier. (The input right signal is

not output.)

%

FILTER switch

This switch allows to apply high-pass or

low-pass filtering to the speaker outputs.

· HPF (High-Pass Filter) position:

The filter outputs the band of higher

frequencies than the frequency set with the

HPF FREQUENCY control.

· OFF position:

The entire bandwidth is output without

filtering.

· LPF (Low-Pass Filter) position:

The filter outputs the band of lower

frequencies than the frequency set with the

LPF FREQUENCY control.

The speaker output is automatically turned

monaural (L+R) and the bass boost function

is activated.

^

HPF FREQUENCY control

Sets the cutoff frequency when the FILTER

switch is set to HPF.

&

LPF FREQUENCY control

Sets the cutoff frequency when the FILTER

switch is set to LPF.

*

INFRASONIC FILTER switch

When this switch is set to 15 Hz or 25 Hz,

frequencies below the setting value will be

cut. This serves to get rid of unwanted

vibrations that do not result in sound and

improves the speakers' ability to reproduce

sound. Note that the speaker output will

automatically be set for monaural (L+R)

sound.

NOTE

English

5

AIR

INDUCTION

LO PASS

50

200

HI PASS

LO PASS

50

200

HI PASS

FILTER

FREQUENCY

A

B

POWER

COOLING FAN

OPERATION/PROTECTION

OPEN/CLOSE

LOW VOLTAGE

B.M.S.

4/3/2 CHANNEL POWER AMPLIFIER

&

^

LO PASS

50

200

HI PASS

LO PASS

50

200

HI PASS

FILTER

FREQUENCY

A

B

25Hz

15Hz

INFRASONIC

FREQ (Hz)

OFF

FILTER

LPF

OFF

HPF

OPERATION

MONO

STEREO

B.M.S.

FREQ(Hz)

B.M.S.

(

+6)

CLOSE

OPEN/ B.M.S.

(REMOTE)

0.2

0.5

5

1

2

3

4

100

50

80

(MAX)

(MIN)

INPUT SENSITIVITY(V)

CONTROL B