Kenwood KAC-PS401M User Manual

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 automotivegrade 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-52SLRCA cable

CA-3WL CA-13WL CA-23WL CA-53WLRCA cable (ø7mm)

CA-5W CA-15W CA-25W CA-45W CA-65WRCA 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 L

R

OUTLINE IN

P.CONGND EXT.AMP.CONT.

30

15

20 25

ON

OFFONOFFONOFF

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 52 3

67 8

90

30

15

20 25

ON

OFFONOFFONOFF

INFRASONIC BAND

REJECT LPF

FREQ (Hz)

(MIN) (MAX)

5

4

3

2

1

0.5

0.2

50 40200 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.

■

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

eXcelon

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 40200 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 40200 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

6

English

B.M.S. (Bass Management System)

AIR

INDUCTION

(MIN) (MAX)

5

4

3

2

1

0.5

0.2

50 100

50 40200 200

B.M.S.

FREQUENCY

INPUT

SENSITIVITY

B.R.F.

FREQUENCY

LO PASS

FREQUENCY

POWER

L L

R

OUTLINE IN

P.CONGND 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/

MONO POWER AMPLIFIER

COOLING FAN

OPERATION

/

PROTECTION

OPEN

/

CLOSE

LOW VOLTAGE

B.M.S.

(

+

6)B.M.S.

(REMOTE)

CLOSE

OPEN/

50 100

B.M.S.

FREQUENCY

OPERATION/PROTECTION

OPEN/CLOSE

LOW VOLTAGE

B.M.S.

1

2

3

■

If the unit is not going to be operated from the outside:

1

B.M.S. switch

This boosts the bass, focusing mainly on the frequency setting determined using the B.M.S. FREQUENCY control.

• (REMOTE) OPEN/CLOSE or (REMOTE) B.M.S. position:

When the switch is in this position, the bass is not boosted.

• B.M.S. (+6) position:

When the switch is in this position, the bass is boosted by 6dB. The B.M.S. indicator glows.

2

B.M.S. FREQUENCY control

When the B.M.S. switch is set to the B.M.S. (+6) position, this control can be used to adjust the central frequency that you want to emphasise.

3

OPEN/CLOSE button

Each time you press this button, the slide panel either opens or closes.

• If the slide panel meets an obstacle whilst sliding, the slide operation will be halted. If this happens, remove the obstacle and then press the OPEN/CLOSE button again.

• If the centre unit power is switched OFF, or the vehicle engine is switched OFF, whilst the slide panel is open, the slide panel will then close automatically. The next time the power is turned ON or the vehicle engine is turned ON, the slide panel will return to its original open state.

• If the B.M.S. switch setting is changed to (REMOTE), the slide panel will close in preparation for remote operation, even if the EXT.AMP.CONT. terminal is not connected.

Take care not to allow your finger or any other object to be trapped by the slide panel whilst it is sliding.

2CAUTION

NOTE

B.M.S. indicator

Slide panel

Bass boost +6dB (ON)

Operations using the OPEN/CLOSE button

Slide panel

Bass boost Flat (OFF)

Operations using the OPEN/CLOSE button

English

7

■

If the unit is going to be operated from the centre unit:

The amount of bass boost and the opening/closing of the slide panel can be controlled from the centre unit. Additionally, up to 3 power amplifiers can be set at the same time.

Kenwood centre units released in 1999 or later having an “EXT.AMP.CONT.” cable operate this unit. Instructions on how to operate the centre unit will be found in the instruction manual supplied with the centre unit.

NOTE

1

B.M.S. switch

This switch is used to select the range of control operations that can be carried out from the centre unit. When the bass boost is switched ON, the B.M.S. indicator glows.

• (REMOTE) OPEN/CLOSE position:

When the switch is in this position, only the opening/closing of the slide panel can be controlled from the centre unit; the bass cannot be boosted.

• (REMOTE) B.M.S. position:

When the switch is in this position, any of the three bass boost settings — FLAT, +6dB and +12dB — can be selected from the centre unit. If "+6 dB" or "+12 dB" is selected, the slide panel will open.

• B.M.S. (+6) position:

When the switch is in this position, the bass is boosted by 6dB, regardless of any operation carried out from the centre unit.

2

B.M.S. FREQUENCY control

This control allows you to use the B.M.S. to adjust the central frequency that you want to emphasise.

3

OPEN/CLOSE button

• When the B.M.S. switch is in the B.M.S. (+6) position, the slide panel will open or close each time the button is pressed.

• When the B.M.S. switch is set to the (REMOTE) position, the centre unit will control the slide panel. If you want to adjust the control inside the slide panel, you can open/close the slide panel temporarily by pressing the OPEN/CLOSE button.

• If the slide panel meets an obstacle whilst sliding, the slide operation will be halted. If this happens, remove the obstacle and then press the OPEN/CLOSE button again.

• When the B.M.S. is in the (REMOTE) position, and control operations are carried out on the centre unit, the slide panel will return to the status set on the centre unit even if it is opened/closed using the OPEN/CLOSE button.

• If the centre unit power is switched OFF, or the vehicle engine is turned OFF, when the slide panel is open, the slide panel will automatically close. When the power is turned back ON, or when the vehicle engine is turned ON, the slide panel will carry out an action depending on the setting status of the B.M.S. switch, as follows. *If the B.M.S. switch is in the (REMOTE)

position, the slide panel will obey the setting on the centre unit.

*If the B.M.S. switch is in the B.M.S. (+6)

position, the slide panel will return to its original open state.

Take care not to allow your finger or any other object to be trapped by the slide panel whilst it is sliding.

2CAUTION

NOTE

Slide panel

Bass boost

Centre unit setting status

CLOSE

Flat (OFF)

OPEN

AMP

BASS

+6

AMP

BASS

Flat

AMP

BASS

+12

Slide panel

Bass boost

Centre unit setting status

CLOSE

+6dB

(ON)

Flat

(OFF)

OPEN

+12dB

(ON)

AMP

BASS

+6

AMP

BASS

Flat

AMP

BASS

+12

Slide panel

Bass boost

Centre unit setting status

+6dB (ON)

Operations using the OPEN/CLOSE button

AMP

BASS

+6

AMP

BASS

Flat

AMP

BASS

+12

8

English

L L

R

OUTLINE IN

P.CONGND EXT.AMP.CONT.

30

15

20 25

ON

OFFONOFFONOFF

INFRASONIC BAND

REJECT LPF

FREQ (Hz)

B.M.S.

(

+

6)B.M.S.

(REMOTE)

CLOSE

OPEN/

P.CON

GND

L

R

LINE IN

■

RCA cable connection

CENTRE UNIT

(Cassette receiver,

CD receiver, etc.)

RCA cable *

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 cable is connected to this terminal.

2CAUTION

Left input

Connection

RCA cable ground terminal

Right input

SPEAKER OUTPUT

FUSE(15A×4 )

– +

BATT.

GND

15

SERVO II

FEED BACK

∑

■

Speakers cable connection

Speaker

Lead terminal *

* : Commercially available parts

Distribute the speaker cables and sigma servo cables along the same paths.

NOTE

English

9

■

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.

• Use speakers that have an impedance of 2Ω or greater. 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.

600W (4Ω)

4 Ω

1200W (2Ω)

4 Ω

600W (2Ω)

300W (8Ω)

600W (2Ω)

(600W/4Ω)(600W/4Ω) (600W/4Ω)

Maximum output of the amplifier

Combined impedance

Rated input power and impedance of the speakers

L L

R

OUTLINE IN

P.CONGND EXT.AMP.CONT.

30

15

20 25

ON

OFFONOFFONOFF

INFRASONIC BAND

REJECT LPF

FREQ (Hz)

B.M.S.

(

+

6)B.M.S.

(REMOTE)

CLOSE

OPEN/

EXT.AMP. CONT.

P.CONT.

P

.

C

O

N

E

X

T

.

A

M

P

.

C

O

N

T

.

G

N

D

Lead terminal *

* : Commercially available parts

CENTRE UNIT

(Cassette receiver,

CD receiver, etc.)

Power control cable (Blue/ White)

External amplifier control cable (Pink / Black)

Extension cable *

Power control lead terminal External amplifier control terminal

■

Control terminal

Attach the connection terminal to a commercially available wiring cable for in-car use, and connect it to the unit.

An EXT.AMP.CONT. terminal can only be attached if Kenwood centre unit is a model released in 1999 or latter, and has an “EXT.AMP.CONT.” cable. Using the external amp control, up to 3 power amplifiers can be operated simultaneously (although this may not be possible, depending on the type of wiring cable used, and its length).

NOTE

10

English

Connection

■

Power cable connection

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

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 cable.

• Do not allow the cable to directly contact the edge of the iron plate by using Grommets.

• Connect the ground cable 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 cable is not connected.

• Please be sure to install a protective fuse in the power cable, near the battery. Use a fuse which has a capacity about 10A higher than the capacity of the fuse in the unit.

• For the power cable and the earth cable, use (flame-resistant) power wiring cables for in-car use. For the power cable, use a power wiring cable with a current capacity about 10A higher than the capacity of the protective fuse (about 20A higher than the capacity of the fuse in the unit).

• When more than one power amplifier are going to be used, use a power supply wiring cable and protective fuse of greater current-handling capacity than the total maximum current drawn by each amplifier.

2WARNING

Fuse capacity

60 A

Protective Fuse Cross-sectional Area of Wiring

Cable (AWG)

5 mm2(AWG 10) or greater × 1

Example: One Power Amplifier Is Used

75 A

25 A 25 A 25 A

25 A 25 A

25 A

SPEAKER OUTPUT

FUSE(15A×4 )

– +

BATT.

GND

15

SERVO II FEED BACK

∑

Terminal cover

Battery

Ground cable *

Battery cable *

Protective Fuse

Power terminal

* : Commercially available parts

Lead terminal *

Power terminal

Pass battery and ground cables through supplied terminal cover and connect to respective terminals. After completing connections, fasten terminal cover over terminal bracket.

English

11

Sigma servo feed back

The sound reproduced through conventional amplifiers is distorted due to the counterelectromotive force produced in the oscillating system of the speaker. The counterelectromotive force is particularly high with the woofer which requires a large drive mass.The sigma servo connection reduces distortion caused by the counterelectromotive force by including the circuit up to the speaker terminals in the negative feedback loop. This makes it possible to drive speakers with more fidelity to the input signals and create a sharp bass sound image with few feeling of noise interference.

The speaker cables and sigma servo cables should be distributed along the same paths.

• The extension of the negative feedback loop to include the speaker terminals makes it necessary to connect the sigma servo terminals correctly. Incorrect connection may result in sound degradation or other malfunction. If sound is not reproduced normally, check the connection of the sigma servo 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 should be no less than the maximum output of the amplifier. Otherwise malfunction may result. Be specially careful in this when connecting speakers in a parallel configuration.

2CAUTION

NOTE

■

Basic sigma servo connection

■

Series connection

Make this cable as short as possible.

2CAUTION

■

Parallel connection (1)

The speaker cables connected to this unit should be thick enough to supply the current capacity of two speakers.

2CAUTION

This connection is possible only when the speakers are identical and the speaker cables are also of the same type and length.

2CAUTION

■

Simplified sigma servo connection

■

Parallel connection (2)

In case any of the connection examples above cannot be used or if the speakers cannot be connected to the speaker terminals, connect them to this unit as shown in the figure.

12

English

Connection

The acoustic properties of vehicle compartment tend to cause oscillation due to resonance or unclearness of sound due to standing waves at certain frequencies. The band reject filter can solve the problems of resonance or unclear sound with minimum influence on the sound quality because it eliminates only the frequencies causing resonance or standing waves.

■

Adjustment method:

The band reject filter cuts only the limited frequencies to minimize influence on the sound quality. Therefore, its effect cannot be obtained unless the cutoff frequencies are set accurately to the frequencies causing resonance and standing waves. The band reject filter can be adjusted according to what you feel through your ears, but we recommend the use of a signal generator or a spectrum analyzer with a fine frequency measurement capability for the adjustment.

• Adjustment using a signal generator:

Output a sine wave, vary its frequency to find the frequencies at which the vehicle compartment resonates or volume increases (standing waves occur), and set the BAND REJECT FREQUENCY control to the position with which the resonance and standing waves disappear.

• Adjustment using a spectrum analyzer:

Output white noise (sound in which all frequencies are at a certain level), find the peak frequency observed on the spectrum analyzer, and set the BAND REJECT FREQUENCY control to the position with which the peak observed on the spectrum analyzer disappears.

Frequency

0 dB

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.

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 correct position.

• The speakers cable are connected with wrong + / polarity.

• A speaker cable 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 "Controls".

• Replace the fuse with a new fuse and use a lower volume.

Adjust the control correctly referring to “Controls”.

• Connect them properly checking the + / - of the terminals and cables well.

• Connect the speaker cable again so that it is not pinched by anything.

• Set switches properly by referring to "Controls".

English

13

Specifications

Specifications subject to change without notice.

Audio Section

Max Power Output (2 Ω) ....................................................................................................1200 W × 1

Rated Power Output (+B = 12.0 V)

(4 Ω) ..................................................................................200 W × 1 (20 Hz ~ 20 kHz, 0.05 % THD)

(2 Ω) ....................................................................................................400 W ×1 (1 kHz, 0.5 % THD)

Rated Power Output (+B = 14.4 V)

(4 Ω) ........................................................................................300 W × 1 (DIN : 45324 , +B = 14.4V)

(2 Ω) ....................................................................................................600 W ×1 (1 kHz, 0.5 % THD)

Frequency Response (+ 0 , – 3 dB) ................................................................................5 Hz ~ 50 kHz

Total Harmonic Distortion (Rated power)#....................................................................0.002 % (1 kHz)

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

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

Signal to Noise Ratio ..................................................................................................................105 dB

Input Impedance ..........................................................................................................................10 kΩ

Damping Factor ....................................................................................More than 9900 (at ∑ connect)

Low Pass Filter Frequency (24 dB/oct.) ..............................................................50 ~ 200 Hz (variable)

Infrasonic Filter Frequency (24 dB/oct.) ..................................................................15 / 20 / 25 / 30 Hz

Band Reject Filter Frequency..............................................................................40 ~ 200 Hz (variable)

# Sensitivity = Mini. , Through LPF (30 kHz)

General

Operating Voltage ....................................................................................12.0 V (11 ~ 16 V allowable)

Current Consumption (4 Ω, +B = 12.0 V, 10 % THD) ....................................................................36 A

Dimensions (W × H × D) ........................................................................................272 × 64 × 380 mm

Weight..........................................................................................................................................7.0 kg

Troubleshooting Guide

PROBLEM POSSIBLE CAUSE SOLUTION

If the slide panel moves of its own accord.

The external amplifier controller (B.M.S.) will not work.

• The system is in DEMO mode.

• The slide panel has gone into remote operation mode.

• The B.M.S. switch is set to "B.M.S. (+6)".

• The external amplifier control cable has come loose.

• Cancel DEMO mode by pressing the OPEN/CLOSE button.

• Check the B.M.S. and operate the slide panel remotely or manually.

• The B.M.S. switch is set to "(REMOTE)".

• Check that the external amplifier control cable is properly connected.

Kenwood KAC-PS401M User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Safety precautions

Installation procedure

Installation

Controls

B.M.S. (Bass Management System)

RCA cable connection

Connection

Speakers cable connection

Speaker Selection

Control terminal

Power cable connection

Sigma servo feed back

Connection

Troubleshooting Guide

Specifications