Kenwood KAC-PS500F instruction manual Controls

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.

12 3 4 5 6

CONTROL

A

LINE IN

LINE OUT

CONTROL

B

15Hz

2

MONO A

B

A + B

15Hz

OFF

25Hz

1

2

1

OFF

25Hz

INFRASONIC

3

0.5

GND L

L

3

0.5

INFRASONIC

4

P.CON(REMOTE)

4

(MIN) 5

0.2 (MAX)

(MIN) 5

0.2 (MAX)

120

100 100 120

FILTER

INPUT

INPUT

FILTER

100 100 150

70

120150

SENSITIVITY(V)

SENSITIVITY(V)

70 120 150

150

OFF

OFF

HPF LPF

STEREO

MONO A B

A R

R

STEREO

MONO

HPF LPF

70

170

OPERATION

INPUT

OPERATION

70

170

FREQUENCY(Hz)

50 LPF 200

FREQUENCY(Hz)

SELECTOR

50 LPF 200

50

HPF 200

50 HPF 200

CONTROL

A

CONTROL

B

15Hz

2

7

2

15Hz

OFF

25Hz

1

1

OFF

25Hz

INFRASONIC

3

0.5

3

0.5

INFRASONIC

4

4

(MIN) 5

0.2 (MAX)

(MIN) 5

0.2 (MAX)

120

100 100 120

FILTER

INPUT

INPUT

100 100 150

70

120150

SENSITIVITY(V)

SENSITIVITY(V)

FILTER

120

150

150

OFF

8

OFF

70

HPF LPF

STEREO

MONO A

B

A

STEREO

MONO

HPF LPF

70

170

OPERATION

INPUT

OPERATION

70

170

50 LPF 200

SELECTOR

50 LPF 200

50

HPF 200

50

HPF

200

Amplifier A

Amplifier B

9 0 ! @

#

$ %

^

&

* (

SPEAKER OUTPUT

A

ΣSERVO Ι FEED BACK

RIGHT

LEFT

FUSE(20A×4)

B

GND

BRIDGED

A

BATT.

A

20

20

20

20

B

B

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.

9INPUT 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.

0OPERATION 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

%Ground terminal

^Amplifier A speaker output terminals

&Amplifier B speaker output terminals

❖SPEAKER 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 2Ω or greater. When multiple speakers are to be

connected, ensure that the combined impedance is 2Ω 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 4Ω or greater. When multiple speakers are to be

connected, ensure that the combined impedance is 4Ω or greater.

2CAUTION

The rated input of the speakers should be no less than the maximum output of the amplifier. Otherwise malfunction may result.

*Amplifier A SIGMA SERVO I

FEED BACK terminals (See p.7)

1Cooling fans

When the internal temperature of the amplifier rises, the cooling fans are activated automatically to drop the temperature. In certain situations, the cooling fans may be operating from the beginning of the amplifier operation.

2RCA cable ground lead terminal

3Amplifier A LINE IN terminal

4Amplifier B LINE IN terminal

5LINE 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.

6Power control (REMOTE) terminal

7INPUT SENSITIVITY control

Adjust this control according to the pre-out level of the center unit connected to this amp.

The sensitivities of amplifiers A and B can be adjusted independently regardless of the position of the input selector switch.

NOTE

Refer to “Specifications” on the center unit’s instruction manual about the pre-out level.

8INFRASONIC FILTER FREQUENCY 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

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.

@FREQUENCY control

When the FILTER switch is set to the HPF (High-Pass Filter) or LPF (Low-Pass Filter) position, the threshold frequency can be adjusted with this control.

#Fuse (20 A ⋅ 4)

$Battery terminal

(Amplifier B SIGMA SERVO I

FEED BACK terminals (See p.7)

2CAUTION

The SIGMA SERVO FEEDBACK terminals should be connected properly. Failure to connect them properly will be the cause of breakdown.

4 English English 5