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Power amplifier

270 (10 

3

/

4

)

430 (17)

9.9

(

13

/

32

)

18.8

(

3

/

4

)

190 (7 

1

/

2

)

188

.7 (7 

1

/

2

)

37

0 (14 

5

/

8

)

80˚

87˚

Dimensions

Unit: mm (in)

Reference Point

Reference Plane

Reference Axis

Precaution

ˎ

ˎ

This product is designed to be installed in the 
cargo space of vehicle. Do not install this product 
in a place where it could distract you or another 
driver from the road.

ˎ

ˎ

The subwoofer system should be securely 
installed so as to avoid injury in the event of 
sudden braking.

ˎ

ˎ

If your car is parked in direct sunlight and there is a 
considerable rise in temperature inside the car, 
allow the unit to cool down before use.

ˎ

ˎ

Do not use the unit on a weak battery as its 
optimum performance depends on a good power 
supply.

ˎ

ˎ

For safety reasons, keep your car audio volume 
moderate so that you can still hear sounds outside 
your car.

ˎ

ˎ

If no power is being supplied to the cassette player 
or tuner, check the connections.

ˎ

ˎ

Please note the following when installing the units; 
otherwise malfunction and/or deterioration in 
sound quality may result.

 

– Do not touch the diaphragms and/or speaker 

cones by hand or with tools.

 

– Do not put your fingers through the holes of the 

frame.

 

– Do not drop foreign objects in the units.

Specifications

Speaker 

30 cm (12 in), cone type 
woofer

Enclosure 

Shielded type

Short-term Maximum Power*

1

 1,800 W*

2

Rated power 

300 W*

2

CEA 2031 RMS Power 

420 W

Rated impedance 

4 Ω

Output sound pressure level  86±2 dB (1 W, 1 m)*

2

In-car output sound pressure level   

94 dB (1 W, @driver’s 
seat)*

3

Effective frequency range 

32 – 1,000 Hz*

2

Mass 

Approx. 12 kg (26 lb 8 oz)

Supplied accessories 

Parts for installation

Design and specifications are subject to change without 
notice.

*

1

 “Short-term Maximum power” may also be referred to as “Peak 

Power.”

*

2

 Testing Condition : IEC 60268-5 (2003-05)

*

3

 Testing Condition : Inside the car

Before installation

ˎ

ˎ

Choose the installation location carefully so that the 
unit will not interfere with normal driving.

ˎ

ˎ

Use only the supplied mounting hardware for a safe 
and secure installation.

ˎ

ˎ

Avoid installing the unit where it would be subject 
to high temperatures, such as from direct sunlight 
or hot air from the heater, or where it would be 
subject to dust, dirt, or excessive vibration.

ˎ

ˎ

As you will need to drill some holes to install the 
metal fitting, check the underside (under the car, or 
in the trunk) of the mounting location carefully to 
make sure there is no fuel line, fuel tank, or electric 
wires, etc. before drilling the installation holes.

Mounting

Parts list

× 4

ø 5  
× 8

ø 5  
× 8

Location

Cargo space

Rear the back seat

1

Fasten the fittings 

 securely to the unit with the screws 

.

Apply the protruding L-shaped section of 

 to the side of the unit.

Decide the mounting location. 

2

Caution

Choose a location under which no fuel line, 
fuel tank, or electric wires are present, 
because the metal fittings will be attached 
with tapping screws.

Mark and drill the screw holes in the car floor panel, then use the screws 

.

3

Connect the striped speaker cord to the negative terminal.
As there is no low-pass filter built-in to this unit, be sure to adjust beforehand the amplifier you 
connect to (we recommend a cut-off frequency of 80 – 200 Hz).

4

XS-NW12022E

4-527-219-

11

(1)

©2013 Sony Corporation  Printed in Vietnam

Box Subwoofer

Instructions

GB

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