Controls

Operations of the following control and switches are required in accordance with the center unit and speakers connected with this unit.

FUSE(20A)

 

POWER IN

 

∑ SERVO ΙΙ

 

∑ SERVO ΙΙ

20

 

BATT

 

GND

 

SPEAKER OUTPUT

 

 

 

 

 

 

P.CON(REMOTE)

 

 

FUSE(20A)

 

 

 

 

 

 

 

 

20

 

 

 

 

 

 

 

 

 

1 2 3

 

4

5 6

15Hz

LPF

 

INPUT

 

 

SPEAKER LEVEL INPUT

OFF 25Hz

FREQUENCY(Hz) SENSITIVITY(V)

 

LINE IN

LEFT

RIGHT

INFRASONIC

100

150

0.5

0.3

L

R

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

70

 

GND

 

 

 

 

 

2

 

 

 

 

MONO

 

50

34

5

0.2

 

 

 

POWER AMPLIFIER

 

200

 

 

 

 

7 8 90 ! @

1FUSE (20 A ⋅ 2)2 Battery terminal3 Ground terminal4 Power control (REMOTE) terminal5Speaker 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.

2CAUTION

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

6SIGMA SERVO FEED BACK terminals (See p.8)

2CAUTION

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.

7INFRASONIC FILTER switch

Ultralow frequencies that cannot be reproduced even by a subwoofer speaker do not become sound but become unnecessary oscillations, which affect the sound by causing distortion, etc. Setting this switch to "15 Hz" or "25 Hz" cuts the frequencies below the respective frequency.

This improves the reproduction performance of the speakers by eliminating unnecessary oscillations which will not become sound.

8LOW PASS FILTER FREQUENCY control

This control adjusts the frequency band output from this unit.

9INPUT SENSITIVITY control

Set this control according to the pre-output level of the center unit connected with this unit, or to the maximum power output of the genuine-accessory car stereo.

Use the diagram on the right as a guide.

NOTE

For the pre-output level or the maximum power output, refer to the “Specifications” in the instruction manual of the center unit.

 

10

 

 

 

0.5

15

1

0.3

 

 

2

3

25 45 (V) 0.2

(W)

4