JVC POWERED SUBWOOFER SX-DW303 - Manual

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.
Checking and Connecting to Your Amplifier
Before connecting this unit to your amplifier (or receiver), check what types of
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.
• When connecting to your amplifier (or receiver), refer also the manual supplied
for your equipment.
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
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.
0503NSMMDWJSC
EN
TO MAIN
SPEAKERS
RIGHT
RIGHT LEFT
RIGHT LEFT
LEFT/MONO
MAX
VOLUME 50Hz
200Hz
MIN
ON OFF
FIXED VARIABLE
POWER
FREQUENCY
CUT OFF FILTER
LINE OUT
L
R
RIGHT LEFT/MONO
(LOW-LEVEL)
INPUT 1 INPUT 2 (HIGH-LEVEL)
(LOW-LEVEL) INPUT 1
AUTO POWER ON/STANDBY
PHASE
CANCEL ON
REVERSE NORMAL
LVT0951-007A
[UJ]
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.
15 cm 15 cm
20 cm
10 cm
Front view
20 cm
20 cm
Side view
Front
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.
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.
• 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.
TO MAIN
SPEAKERS
RIGHT
RIGHT LEFT
RIGHT LEFT
LEFT/MONO
MAX
VOLUME 50Hz
200Hz
MIN
ON OFF
FIXED VARIABLE
POWER
FREQUENCY
CUT OFF FILTER
RIGHT LEFT
FRONT SPEAKERS
TO MAIN
SPEAKERS
INPUT 2
(HIGH-LEVEL)
RIGHT LEFT
RIGHT LEFT
INPUT 2 (HIGH-LEVEL)
(LOW-LEVEL) INPUT 1
AUTO POWER ON/STANDBY
PHASE
CANCEL ON
REVERSE NORMAL
Main (Front) Speakers
(not supplied)
Your Amplifier
Your Amplifier
SX-DW303
Main (Front) Speakers
(not supplied)
Stereo audio cord
(not supplied)
To an AC
outlet
Right speaker
SUBWOOFER
OUT
RIGHT LEFT/MONO
(LOW-LEVEL)
INPUT 1
TO MAIN
SPEAKERS
RIGHT
RIGHT LEFT
RIGHT LEFT
LEFT/MONO
MAX
VOLUME 50Hz
200Hz
MIN
ON OFF
FIXED VARIABLE
POWER
FREQUENCY
CUT OFF FILTER
INPUT 2 (HIGH-LEVEL)
(LOW-LEVEL) INPUT 1
AUTO POWER ON/STANDBY
PHASE
CANCEL ON
REVERSE NORMAL
Main (Front) Speakers
(not supplied)
SX-DW303
Speaker cords
(not supplied)
To an AC outlet
Left speaker
Connecting Method Ç
Connect an amplifier without a subwoofer output jack and line
output jacks to the INPUT 2 (HIGH-LEVEL) terminal.
Preparation:
Purchase speaker cords at an
audio shop or electric shop.
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.
• Match the polarity of the speaker terminals:
ª to ª and · to ·.
Speaker cords
(not supplied)
Your Amplifier
SX-DW303
Monaural audio cord
(supplied)
To an AC outlet
When using Connecting Method Å, no signal comes out of
the TO MAIN SPEAKERS terminal. 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).
• 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.
Connections
SUBWOOFER
OUT
LINE OUT
L
R
RIGHT LEFT
FRONT SPEAKERS
First check whether your amplifier has a subwoofer output jack.
It is usually named and printed as the “SUBWOOFER OUT” or
“SUBWOOFER.” Next check whether your amplifier has line output jacks.
They are usually named and printed as “LINE OUT” or “LINE
OUTPUT.” 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”).
If you cannot
find any
If you find them on your amplifier, follow Connecting Method ı. If you find it on your amplifier, follow Connecting Method Å.
If you cannot
find any
If you find it If you find them
POWERED SUBWOOFER
SX-DW303
INSTRUCTIONS
 2003 VICTOR COMPANY OF JAPAN, LIMITED
SX-DW303_UJ.p65 03.5.2, 6:33 PM 1