JVC SX DW303 EN_DW303[US]_f.p65 User Manual LVT0951 004A

User Manual: JVC SX-DW303

Open the PDF directly: View PDF .
Page Count: 9

Download
Open PDF In Browser	View PDF

English

Powered Subwoofer
COMPACT COMPONENT SYSTEM
Subwoofer motriz
Subwoofer energizado

SX-DW303

INSTRUCTIONS
MANUAL DE INSTRUCCIONES
INSTRUÇÕES

For Customer Use:
Enter below the Model No. and Serial
No. which are located either on the rear,
bottom or side of the cabinet. Retain this
information for future reference.
Model No.
Serial No.

LVT0951-004A
–1–

EN_DW303[US]_f.p65

[US]

02.7.25, 9:52 AM

Thank you for purchasing a JVC speaker.
Before you begin using it, please read the instructions carefully
to be sure you get the best possible performance. If you have any
questions, consult your JVC dealer.

Warnings, Cautions and Others
To reduce the risk of electrical shocks, fire, etc.:
1. Do not remove screws, covers or cabinet.
2. Do not expose this appliance to rain or moisture.

Precautions for installation
• To prevent deformation or discoloration of the
cabinet, do not install the unit where it is exposed
to direct sunlight or high humidity, and avoid
installation near air conditioning outlets.
• Speaker vibrations may cause howling. Place the
unit as far away from the player as possible.

Caution—POWER switch
This apparatus is provided with the POWER switch to minimize
power consumption for safe use. Therefore,
1. Before doing initial settings, complete all the connections
required, connect the mains plug into the wall outlet, then set
the POWER switch to ON [ ❙ ].
2. When not in use, set the POWER switch to OFF [ ‡ ].
This disconnects the mains line.

• Take the occurrence of earthquakes or other
physical shocks into consideration when selecting
the installation place, and secure the unit
thoroughly.

Cautions
• Do not block the ventilation openings or holes.
(If the ventilation openings or holes are blocked by a
newspaper or cloth, etc., the heat may not be able to get out.)
• Do not place any naked flame sources, such as lighted
candles, on the apparatus.
• When discarding batteries, environmental problems must be
considered and local rules or laws governing the disposal of
these batteries must be followed strictly.
• Do not expose this apparatus to rain, moisture, dripping or
splashing and that no objects filled with liquids, such as vases,
shall be placed on the apparatus.

Caution—Proper Ventilation
To avoid risk of electric shock and fire, and to prevent damage,
locate the apparatus as follows:
1 Front:
No obstructions and open spacing.
2 Sides/ Top/ Back:
No obstructions should be placed in the areas shown by the
dimensions below.
3 Bottom:
Place on the level surface. Maintain an adequate air path
for ventilation by placing on a stand with a height of 10 cm
or more.

Front view

• This unit is magnetically shielded to avoid color distortions on
TVs. However, if not installed properly, it may cause color
distortions. So, pay attention to the following when installing
the unit.
– When placing this unit near a TV set, turn off the TV’s main
power switch or unplug it before installing this unit.
Then wait at least 30 minutes before turning on the TV’s
main power switch again.
Some TVs may still be affected even though you have followed
the above. If this happens, move this unit away from the TV.
• Tuner reception may become noisy or hissing if this unit is
installed nearby the tuner. In this case, leave a more distance
between the tuner and this unit or use an outdoor antenna for
better tuner reception without interference from this unit.

Precautions for Daily Use
• To maintain the appearance of the unit
Wipe with a dry, soft cloth if the cabinet or control panel should
become dirty.
If very dirty, apply a small amount of water or neutral detergent
to the cloth and wipe clean. Then wipe with a dry cloth.
• To improve the sound field
If the speakers are facing a solid wall or glass
door, etc., it is recommended to furnish the wall
with materials that absorb sounds, for example by
hanging up thick curtains, to prevent reflections
and standing waves.

Side view

Checking the Supplied Accessories
20 cm
15 cm

20 cm
15 cm
20 cm

Check to be sure you have the following supplied accessories.
The number in parenthesis indicates the quantity of the piece
supplied.
• Monaural audio cord (1)
• AC plug adaptor (1)

If the item mentioned above is missing, contact your dealer
immediately.
10 cm

–2–

EN_DW303[US]_f.p65

02.7.25, 9:52 AM

English

Warnings, Cautions and Others ....................................................... 2
Connections .................................................................................... 4
Checking Your Amplifier .................................................................... 4
Connecting to the Amplifier .............................................................. 4
Operations ...................................................................................... 6
Additional Infromation ................................................................... 8

Español

Contents

Advertencias, precauciones y notas ................................................. 9
Conexiones ................................................................................... 10
Verificación de su amplificador ....................................................... 10
Conexión al amplificador ................................................................ 10
Operaciones .................................................................................. 12
Información adicional .................................................................. 14

Índice
Advertências, precauções e outras notas ...................................... 15
Conexões ...................................................................................... 16
Para Verificar o Amplificador .......................................................... 16
Para Conectar ao Amplificador ...................................................... 16
Operações ..................................................................................... 18
Informações Adicionais ............................................................... 20

21
22
22
22
24
26

–3–

EN_DW303[US]_f.p65

02.7.25, 9:52 AM

Português

Contenido

Connections
Checking Your Amplifier
Before connecting this unit to your amplifier (or receiver), check
what types of the connecting terminals your amplifier has.
Before connecting this unit to the amplifier (or receiver),
observe the following carefully.
• Before connecting this unit to an amplifier, turn off the
amplifier first.
• Make all connections before plugging in this unit.
• DO NOT use the INPUT 1 (LOW-LEVEL) and INPUT 2
(HIGH-LEVEL) terminals on the rear of this unit at the
same time; otherwise, noise will be heard and may
damage the unit.
• DO NOT connect this unit to the REC OUT jacks of your
amplifier.

Follow the instructions below to find a proper connection method
for your equipment.
• Illustrations of jacks and terminals in this manual may be
different from the ones actually used for your amplifier. The
illustrations are of the most used type.
First check whether your amplifier has a subwoofer output
jack.
It is usually named and printed as the “SUBWOOFER OUT” or
“SUBWOOFER.”

Connecting to the Amplifier

SUBWOOFER
OUT

When connecting to your amplifier (or receiver), refer also the
manual supplied for your equipment.

Connecting Method Å
Connect an amplifier having a subwoofer output jack to the
LEFT/MONO jack of the INPUT 1 (LOW-LEVEL) terminal.
If you find it on your amplifier, follow Connecting Method Å.

Preparation:
Use the supplied monaural
audio cord.

If you cannot
find any
Next check whether your amplifier has line output jacks.
They are usually named and printed as “LINE OUT” or “LINE
OUTPUT.”

Main (Front) Speakers
(not supplied)

LINE OUT

L
R

SUBWOOFER
OUT

If you find them on your amplifier, follow Connecting Method
ı.

Your Amplifier
Monaural audio cord
(supplied)

If you cannot
find any

FREQUENCY

VOLUME
MIN

50Hz

MAX

200Hz

AUTO POWER ON/STANDBY

CUT OFF FILTER

ON
CANCEL

VARIABLE
FIXED

PHASE
RIGHT

Follow Connecting Method Ç.
This connection can be used for any amplifier, by connecting the
front speaker terminals of the amplifier (usually named and
printed as “FRONT SPEAKERS” or “MAIN SPEAKERS”).

RIGHT

INPUT 1
(LOW-LEVEL)

RIGHT

LEFT

RIGHT

LEFT/MONO

INPUT 2
(HIGH-LEVEL)

INPUT 1
(LOW-LEVEL)

TO MAIN
SPEAKERS
RIGHT

LEFT

POWER
OFF

FRONT SPEAKERS

LEFT/MONO

NORMAL
REVERSE

SX-DW303

To an AC outlet

LEFT

When using Connecting Method Å, no signal comes out of
the TO MAIN SPEAKERS terminal.

–4–

EN_DW303[US]_f.p65

02.7.25, 9:52 AM

English

Connecting Method ı
Connect an amplifier having line output jacks to the INPUT 1
(LOW-LEVEL) terminal.

FRONT SPEAKERS

Preparation:
Purchase a stereo audio cord at
an audio shop or electric shop.
RIGHT

LEFT

Your Amplifier
Speaker cords
(not supplied)

FREQUENCY

VOLUME
MIN

50Hz

MAX

200Hz

AUTO POWER ON/STANDBY
ON
CANCEL

CUT OFF FILTER
VARIABLE
FIXED

PHASE
RIGHT

LEFT/MONO

NORMAL
REVERSE

Main (Front) Speakers
(not supplied)

RIGHT

INPUT 1
(LOW-LEVEL)

RIGHT

LEFT

INPUT 2
(HIGH-LEVEL)

TO MAIN
SPEAKERS
RIGHT

LEFT

LINE OUT
POWER
OFF

TO MAIN
SPEAKERS

SX-DW303
To an AC
outlet

RIGHT

LEFT

Speaker cords
(not supplied)

Your Amplifier
Stereo audio cord
(not supplied)

Main (Front) Speakers
(not supplied)

FREQUENCY

VOLUME
MIN

50Hz

MAX

200Hz

AUTO POWER ON/STANDBY
ON
CANCEL

Left speaker

Right speaker

CUT OFF FILTER
VARIABLE
FIXED

PHASE
RIGHT

LEFT/MONO

NORMAL
REVERSE

RIGHT

INPUT 1
(LOW-LEVEL)

RIGHT

LEFT/MONO

LEFT

INPUT 2
(HIGH-LEVEL)

How to connect the speaker cords:
1 Press and hold the clamp of the speaker terminal.
2 Insert the end of the speaker cord into the terminal as
illustrated below.
• Match the polarity of the speaker terminals: ª to ª and ·
to ·.
3 Release the finger from the clamp.

INPUT 1
(LOW-LEVEL)

TO MAIN
SPEAKERS
RIGHT

LEFT

POWER
OFF

SX-DW303

To an AC outlet

If your amplifier has only a monaural line output (MONO)
jack, connect it to the LEFT/MONO jack of the INPUT 1
(LOW-LEVEL) terminal (see Connecting Method Å).

Connecting Method Ç
Connect an amplifier without a subwoofer output jack and line
output jacks to the INPUT 2 (HIGH-LEVEL) terminal.
• When this method is used, connect your main (front) speakers
to the TO MAIN SPEAKERS terminal on the rear of this unit.

• When you connect main (front) speakers to the TO MAIN
SPEAKERS terminal, use the speakers within the
impedance range indicated by the amplifier connected to
the INPUT 2 (HIGH-LEVEL) terminal. If not, the amplifier
connected to the INPUT 2 (HIGH-LEVEL) terminal may
malfunction and be damaged.
• DO NOT connect more than one speaker to one speaker
terminal.

Preparation:
Purchase speaker cords at an
audio shop or electric shop.

–5–

EN_DW303[US]_f.p65

02.7.25, 9:52 AM

Operations
The unit automatically accommodates AC power between
110V and 240V. You do not need any setting to match the
unit with your local power voltage.

Front view

Turning On the Power—POWER Å
Power
lamp

Press the ON [ ❙ ] portion of the POWER switch.
The main power turns on and the power lamp in the front panel
lights in green.
• The power lamp lights in red when the AUTO POWER ON/
STANDBY places the unit into standby mode (see page 7).

To completely cut off the power to this unit
Press the OFF [ ‡ ] portion of the POWER switch.
This will disconnect the mains lead.

Rear view

Adjusting the Volume—VOLUME ı
Adjust the volume output level through this unit while comparing
with the sounds coming out of the main (front) speakers.
• Once you have adjusted the volume output level of this unit,
you do not need to adjust it each time you use this unit.
Adjusting the volume level on the connected amplifier will also
adjust the volume level through this unit.

1 Turn the VOLUME knob to the MIN position.
VOLUME
MIN
FREQUENCY

VOLUME
MIN

50Hz

MAX

200Hz

VOLUME

MAX

FREQUENCY
CUT OFF FILTER

PHASE

NORMAL
REVERSE

VARIABLE
FIXED

AUTO POWER ON/STANDBY

PHASE

ON
CANCEL

‰

RIGHT

LEFT/MONO

INPUT 1
(LOW-LEVEL)

AUTO POWER
ON/STANDBY

RIGHT

Ç
CUT OFF
FILTER

2 Turn on the connected amplifier and start playing a
source.
Playback sounds come out of the main (front) speakers and
this unit.

LEFT

INPUT 2
(HIGH-LEVEL)

3 Adjust the VOLUME knob to obtain a well-balanced sound
TO MAIN
SPEAKERS
RIGHT

level with that of the main (front) speakers.

LEFT

VOLUME

MIN

POWER

POWER
OFF

MAX

If the volume is set at a high level before starting play, the
sudden blast of sound energy can permanently damage
your hearing and/or ruin your speakers.

–6–

EN_DW303[US]_f.p65

02.7.25, 9:52 AM

You can change the sound phase to match your preference.
Select either “NORMAL” or “REVERSE” to obtain a better bass
sound.

You can adjust the crossover frequency to determine the bass
sound level this unit handles.
• Once it is set, only the sounds below the frequency come out
of the built-in speaker.

Press in or out the PHASE button to select either the
NORMAL position or the REVERSE position.

When the main speakers in use are JVC’s SX-XD33

PHASE

Press in the CUT OFF FILTER button to set it to the _ FIX
position.

NORMAL
REVERSE

CUT OFF FILTER
VARIABLE
FIX

• NORMAL : Normally select this.
• REVERSE : Select this when you feel the bass sound is better
with this mode rather than with “NORMAL.”

• The FREQUENCY knob is deactivated.
• When your amplifier is equipped with crossover frequency
setting, set it within the range of 100 Hz to 150 Hz.
• When your amplifier is equipped with speaker size setting,
select “small.”

Operating the Unit Automatically According to the
Incoming Signals—AUTO POWER ON/STANDBY ‰
By using this function, this unit automatically enters standby
mode even though the POWER switch is turned ON [ ❙ ].

If your amplifier is not provided with a crossover
frequency setting:

Press the AUTO POWER ON/STANDBY button to the — ON
position.

1 Press out the CUT OFF FILTER button to set it to the —
VARIABLE position.
Now the FREQUENCY knob is activated and you can adjust
the crossover frequency on this unit.

AUTO POWER ON / STANDBY

ON
CANCEL

CUT OFF FILTER
VARIABLE
FIX

2 Turn the FREQUENCY knob to obtain the best matching
crossover frequency with your main speakers.
Adjust the frequency (50 Hz to 200 Hz) while listening to
playback sound coming out of both the main speakers and this
unit.
FREQUENCY

• If no sound comes in for about 10 minutes, the unit
automatically enters standby mode. The power lamp lights in
red. Then if the unit detects incoming signals, this unit starts
operating automatically (the power lamp now lights in green).
If Auto Power On/Standby does not work correctly (see
“MEMO” below), press in the AUTO POWER ON/STANDBY
button to set it to the _ CANCEL position. Auto Power On/
Standby is canceled.

50Hz

AUTO POWER ON / STANDBY
200Hz
ON
CANCEL

• If your main speakers can reproduce the bass sound well,
adjust the frequency at a lower level.
• If you feel bass sounds are not sufficient, adjust the
frequency at a higher level.

When the volume level of the amplifier is so low or the
incoming signals are so weak that this unit cannot detect
sounds, Auto Power On/Standby may not work correctly.
• This unit may enter standby mode even though signals
are coming in.
• This unit may not start operating after entering standby
mode, even though signals start coming in.

–7–

EN_DW303[US]_f.p65

02.7.25, 9:52 AM

English

Changing the Phase—PHASE Î

Adjusting the Crossover Frequency
—CUT OFF FILTER and FREQUENCY Ç

Additional Information
Speaker layout
Left front
speaker

To obtain the best possible sound from your unit:

Right front
speaker

—Place a subwoofer wherever you like since bass sound is nondirectional. Normally place it in front of you.
—Place all the main speakers at the same distance from the
listening position.

Subwoofer

Center
speaker

Listening position
Left rear
speaker

Right rear
speaker

Troubleshooting
Use this chart to help you solve daily operational problems. If there is any problem you cannot solve, contact your dealer.

Symptom

Possible Cause

Power does not come on.

Action

Is the unit pugged in?

Auto Power On/Standby does not function
correctly.
No sound is heard

Sounds fluctuate (suddenly become loud
or soft).
Suddenly no sound comes out.

Plug the AC power cord firmly into the AC
outlet.
Signals are too weak or volume level is too This is not a malfunction. If this happens,
low.
cancel Auto Power On/Standby.
Is the VOLUME knob turned to the MIN
Turn the VOLUME knob until a suitable
position?
volume is found.
Connections are incorrect, or loose.
Check the connections. If incorrect, redo
the corrections. (See pages 4 and 5.)
Audio signals through the amplifier are
Increase the volume level on the amplifier.
extremely weak.
The built-in protective circuit is working.
Lower the volume level on the amplifier so
that the symptom will not occur.
If the power lamp lights in red (on standby).
The unit is overloaded because of a large
volume.
1 Turn down the volume,
2 Turn off the power,
3 Turn on the power again, then
4 Adjust the volume.
If the power lamp lights in green (in
operation).
1 Turn down the volume of the playing
source.
2 Turn off the power of the playing
source,
3 Turn on the power of the playing
source, then
4 Adjust the volume of the playing
source.

Specifications
Type :
Speaker unit :
Frequency range :
Input impedance :
Input terminals :
Power requirements :
Output power of built-in amp :
Power consumption :
Dimensions :
Mass :
Accessories :

Powered subwoofer
Bass-reflex type, (magnetically shielded type)
16.0 cm cone (× 1)
30 Hz to 200 Hz
50 kΩ (LOW-LEVEL)
470 Ω (HIGH-LEVEL)
INPUT 1 (LOW-LEVEL)
INPUT 2 (HIGH-LEVEL)
, 50 Hz/60 Hz
AC 110 V–240 V
100 W (45 Hz, 4 Ω, 10 % THD)
27 W (in operation)
9 W (on standby with Auto Power On/Standby)
217 mm (width) × 393 mm (height) × 376 mm (depth)
9.2 kg
Monaural audio cord (× 1)
AC plug adaptor (× 1)

–8–

EN_DW303[US]_f.p65

02.7.25, 9:52 AM

VICTOR COMPANY OF JAPAN, LIMITED

EN_DW303[US]_f.p65

0702NSMMDWJSC

– 10 –

02.7.25, 9:52 AM

Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.3
Linearized                      : Yes
Modify Date                     : 2002:09:27 16:26:40+09:00
Create Date                     : 2002:09:27 16:20:00+09:00
Title                           : EN_DW303[US]_f.p65
Author                          : 
Creator                         : PageMaker 6.5
Producer                        : Acrobat Distiller 4.05 for Macintosh
Page Count                      : 9
Page Mode                       : UseOutlines
Page Layout                     : SinglePage

EXIF Metadata provided by EXIF.tools

JVC SX DW303 EN_DW303[US]_f.p65 User Manual LVT0951 004A

Navigation menu

Versions of this User Manual:

Views

Navigation