JVC SX-DW303 User manual

English
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COMPACT COMPONENT SYSTEM
SX-DW303
Powered Subwoofer
Subwoofer motriz
Subwoofer energizado
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
[US]
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Front view Side view
15 cm15 cm
20 cm
10 cm
20 cm
20 cm
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.
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.
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.
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.
•Take the occurrence of earthquakes or other
physical shocks into consideration when selecting
the installation place, and secure the unit
thoroughly.
•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.
Checking the Supplied Accessories
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.
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English
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Português
Advertencias, precauciones y notas................................................. 9
Conexiones ................................................................................... 10
Verificación de su amplificador ....................................................... 10
Conexión al amplificador ................................................................ 10
Operaciones.................................................................................. 12
Información adicional .................................................................. 14
Contenido
Español
Advertências, precauções e outras notas ...................................... 15
Conexões ...................................................................................... 16
Para Verificar o Amplificador .......................................................... 16
Para Conectar ao Amplificador ...................................................... 16
Operações ..................................................................................... 18
Informações Adicionais ............................................................... 20
Índice
Warnings, Cautions and Others ....................................................... 2
Connections.................................................................................... 4
Checking Your Amplifier .................................................................... 4
Connecting to the Amplifier .............................................................. 4
Operations ...................................................................................... 6
Additional Infromation ................................................................... 8
Contents
21
22
22
22
24
26
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Connections
SUBWOOFER
OUT
LINE OUT
L
R
RIGHT LEFT
FRONT SPEAKERS
Main (Front) Speakers
(not supplied)
Your Amplifier
SX-DW303
Monaural audio cord
(supplied)
If you cannot
find any
If you cannot
find any
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.
Connecting to the Amplifier
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.
Preparation:
Use the supplied monaural
audio cord.
To an AC outlet
SUBWOOFER
OUT
(LOW-LEVEL)
RIGHT LEFT/MONO
INPUT 1
INPUT 2
TO MAIN
SPEAKERS
(HIGH-LEVEL)
(LOW-LEVEL)
RIGHT
RIGHT LEFT
RIGHT LEFT
LEFT/MONO
MAX
VOLUME
50Hz
200Hz
MIN
CANCEL
ON
ONOFF
REVERSE
NORMAL
FIXED
VARIABLE
INPUT 1
POWER
FREQUENCY
AUTO POWER ON/STANDBY
PHASE
CUT OFF FILTER
Checking Your Amplifier
Before connecting this unit to your amplifier (or receiver), check
what types of the connecting terminals your amplifier has.
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.”
If you find it on your amplifier, follow Connecting Method Å.
Next check whether your amplifier has line output jacks.
They are usually named and printed as “LINE OUT”or “LINE
OUTPUT.”
If you find them on your amplifier, follow Connecting Method
ı.
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”).
When using Connecting Method Å, no signal comes out of
the TO MAIN SPEAKERS terminal.
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English
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INPUT 2
TO MAIN
SPEAKERS
(HIGH-LEVEL)
(LOW-LEVEL)
RIGHT
RIGHT LEFT
RIGHT LEFT
LEFT/MONO
MAX
VOLUME
50Hz
200Hz
MIN
CANCEL
ON
ONOFF
REVERSE
NORMAL
FIXED
VARIABLE
INPUT 1
POWER
FREQUENCY
AUTO POWER ON/STANDBY
PHASE
CUT OFF FILTER
LINE OUT
L
R
(LOW-LEVEL)
RIGHT LEFT/MONO
INPUT 1
Main (Front) Speakers
(not supplied)
Your Amplifier
SX-DW303
Your Amplifier
SX-DW303
Main (Front) Speakers
(not supplied)
Speaker cords
(not supplied)
Connecting Method ı
Connect an amplifier having line output jacks to the INPUT 1
(LOW-LEVEL) terminal.
Preparation:
Purchase a stereo audio cord at
an audio shop or electric shop.
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).
Stereo audio cord
(not supplied)
To an AC outlet
To an AC
outlet
Right speaker Left speaker
How to connect the speaker cords:
1Press and hold the clamp of the speaker terminal.
2Insert the end of the speaker cord into the terminal as
illustrated below.
•Match the polarity of the speaker terminals: ªto ªand ·
to ·.
3Release the finger from the clamp.
•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.
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.
Preparation:
Purchase speaker cords at an
audio shop or electric shop.
INPUT 2
TO MAIN
SPEAKERS
(HIGH-LEVEL)
(LOW-LEVEL)
RIGHT
RIGHT LEFT
RIGHT LEFT
LEFT/MONO
MAX
VOLUME
50Hz
200Hz
MIN
CANCEL
ON
ONOFF
REVERSE
NORMAL
FIXED
VARIABLE
INPUT 1
POWER
FREQUENCY
AUTO POWER ON/STANDBY
PHASE
CUT OFF FILTER
RIGHT LEFT
FRONT SPEAKERS
TO MAIN
SPEAKERS
INPUT 2
(HIGH-LEVEL)
RIGHT LEFT
RIGHT LEFT
Speaker cords
(not supplied)
123
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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.
Turning On the Power—POWER Å
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.
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.
1Turn the VOLUME knob to the MIN position.
2Turn on the connected amplifier and start playing a
source.
Playback sounds come out of the main (front) speakers and
this unit.
3Adjust the VOLUME knob to obtain a well-balanced sound
level with that of the main (front) speakers.
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.
MAX
VOLUME
MIN
MAX
VOLUME
MIN
Power
lamp
Front view
Rear view
INPUT 2
TO MAIN
SPEAKERS
(HIGH-LEVEL)
(LOW-LEVEL)
RIGHT
RIGHT LEFT
RIGHT LEFT
LEFT/MONO
MAX
VOLUME
50Hz
200Hz
MIN
CANCEL
ON
ONOFF
REVERSE
NORMAL
FIXED
VARIABLE
INPUT 1
POWER
FREQUENCY
AUTO POWER ON/STANDBY
PHASE CUT OFF FILTER
Å
Ç
ıÇ
Î
‰
POWER
PHASE
AUTO POWER
ON/STANDBY
VOLUME FREQUENCY
CUT OFF
FILTER
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English
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200Hz
FREQUENCY
50Hz
FIX
VARIABLE
CUT OFF FILTER
REVERSE
NORMAL
PHASE
Changing the Phase—PHASE Î
You can change the sound phase to match your preference.
Select either “NORMAL”or “REVERSE”to obtain a better bass
sound.
Press in or out the PHASE button to select either the
NORMAL position or the REVERSE position.
•NORMAL : Normally select this.
•REVERSE: Select this when you feel the bass sound is better
with this mode rather than with “NORMAL.”
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 [ ❙].
Press the AUTO POWER ON/STANDBY button to the —ON
position.
•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.
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.
CANCEL
ON
AUTO POWER ON / STANDBY
CANCEL
ON
AUTO POWER ON / STANDBY
Adjusting the Crossover Frequency
—CUT OFF FILTER and FREQUENCY Ç
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.
When the main speakers in use are JVC’s SX-XD33
Press in the CUT OFF FILTER button to set it to the _FIX
position.
•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.”
If your amplifier is not provided with a crossover
frequency setting:
1Press 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.
2Turn 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.
•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.
FIX
VARIABLE
CUT OFF FILTER
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Specifications
Type : Powered subwoofer
Bass-reflex type, (magnetically shielded type)
Speaker unit : 16.0 cm cone (× 1)
Frequency range : 30 Hz to 200 Hz
Input impedance : 50 kΩ(LOW-LEVEL)
470 Ω(HIGH-LEVEL)
Input terminals : INPUT 1 (LOW-LEVEL)
INPUT 2 (HIGH-LEVEL)
Power requirements : AC 110 V–240 V , 50 Hz/60 Hz
Output power of built-in amp : 100 W (45 Hz, 4 Ω, 10 % THD)
Power consumption : 27 W (in operation)
9 W (on standby with Auto Power On/Standby)
Dimensions : 217 mm (width) ×393 mm (height) ×376 mm (depth)
Mass : 9.2 kg
Accessories : Monaural audio cord (× 1)
AC plug adaptor (× 1)
Speaker layout
To obtain the best possible sound from your unit:
—Place a subwoofer wherever you like since bass sound is non-
directional. Normally place it in front of you.
—Place all the main speakers at the same distance from the
listening position.
Additional Information
Troubleshooting
Use this chart to help you solve daily operational problems. If there is any problem you cannot solve, contact your dealer.
Possible Cause
Is the unit pugged in?
Signals are too weak or volume level is too
low.
Is the VOLUME knob turned to the MIN
position?
Connections are incorrect, or loose.
Audio signals through the amplifier are
extremely weak.
The built-in protective circuit is working.
The unit is overloaded because of a large
volume.
Symptom
Power does not come on.
Auto Power On/Standby does not function
correctly.
No sound is heard
Sounds fluctuate (suddenly become loud
or soft).
Suddenly no sound comes out.
Action
Plug the AC power cord firmly into the AC
outlet.
This is not a malfunction. If this happens,
cancel Auto Power On/Standby.
Turn the VOLUME knob until a suitable
volume is found.
Check the connections. If incorrect, redo
the corrections. (See pages 4 and 5.)
Increase the volume level on the amplifier.
Lower the volume level on the amplifier so
that the symptom will not occur.
If the power lamp lights in red (on standby).
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.
Subwoofer
Left front
speaker
Right front
speaker
Center
speaker
Listening position
Left rear
speaker
Right rear
speaker
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VICTOR COMPANY OF JAPAN, LIMITED
EN, SP, PR, CS
0702NSMMDWJSC
© 2002 VICTOR COMPANY OF JAPAN, LIMITED
EN_DW303[US]_f.p65 02.7.25, 9:52 AM10