JVC SP-DW103 User Manual

POWERED SUBWOOFER

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.

SP-DW103

English

INSTRUCTIONS

– 1 –

LVT1030-001A

[J]

Warnings, Cautions, and Others/

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK.
DO NOT REMOVE COVER (OR BACK)
NO USER SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

RISK OF ELECTRIC SHOCK

DO NOT OPEN

The lightning flash with arrowhead symbol,
within an equilateral triangle is intended to
alert the user to the presence of uninsulated
"dangerous voltage" within the product's
enclosure that may be of sufficient
magnitude to constitute a risk of electric
shock to persons.

The exclamation point within an equilateral
triangle is intended to alert the user to the
presence of important operating and
maintenance (servicing) instructions in the
literature accompanying the appliance.

CAUTION

WARNING: TO REDUCE THE RISK OF FIRE
OR ELECTRIC SHOCK, DO NOT EXPOSE
THIS APPLIANCE TO RAIN OR MOISTURE.

For Canada/pour le Canada

CAUTION: TO PREVENT ELECTRIC SHOCK, MATCH WIDE

BLADE OF PLUG TO WIDE SLOT, FULLY INSERT
ATTENTION: POUR EVITER LES CHOCS ELECTRIQUES,
INTRODUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA
BORNE CORRESPONDANTE DE LA PRISE ET POUSSER
JUSQUAU FOND

THIS DIGITAL APPARATUS DOES NOT EXCEED THE CLASS
B LIMITS FOR RADIO NOISE EMISSIONS FROM DIGITAL
APPARATUS AS SET OUT IN THE INTERFERENCE-CAUSING
EQUIPMENT STANDARD ENTITLED “DIGITAL APPARATUS,”
ICES-003 OF THE DEPARTMENT OF COMMUNICATIONS.
CET APPAREIL NUMERIQUE RESPECTE LES LIMITES DE
BRUITS RADIOELECTRIQUES APPLICABLES AUX
APPAREILS NUMERIQUES DE CLASSE B PRESCRITES
DANS LA NORME SUR LE MATERIEL BROUILLEUR;
“APPAREILS NUMERIQUES”, NMB-003 EDICTEE PAR LE
MINISTRE DES COMMUNICATIONS.

For U.S.A

This equipment has been tested and found to comply with the limits
for a Class B digital device, pursuant to part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against
harmful interference in a residential installation.
This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the
following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that
to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.

Changes or modifications not expressly approved by the
manufacturer for compliance could void the user’s authority to
operate the equipment.

Mises en garde, précautions et indications diverses

English

CAUTION

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.

ATTENTION

Afin d’éviter tout risque d’électrocution, d’incendie, etc.:

1. Ne pas enlever les vis ni les panneaux et ne pas ouvrir le
coffret de l’appareil.

2. Ne pas exposer l’appareil à la pluie ni à l’humidité.

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.

Précaution—Interrupteur POWER

Cet appareil possède un interrupteur POWER permettant
de réduire la consommation électrique et d’assurer une
utilisation en toute sécurité. Par conséquent:

1. Avant de réaliser les réglages initiaux, effectuez toutes
les connexions nécessaires, connectez la fiche
d’alimentation sur une prise secteur murale, puis mettez
l’interrupteur POWER sur la position ON [ ❙ ].

2. Quand l’appareil n’est pas utilisé, mettez l’interrupteur
POWER sur la position OFF [ ‡ ].
De cette façon, l’appareil est déconnecté du secteur.

– 2 –

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.

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.

English

• 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.

• 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)

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

• 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.

CONTENTS

Warnings, Cautions and Others ............................................................... 2

Connections............................................................................................ 4

Checking Your Amplifier ............................................................................ 4

Connecting to the Amplifier ...................................................................... 4

Operations .............................................................................................. 6

Additional Information ........................................................................... 8

Speaker layout.......................................................................................... 8

Troubleshooting ........................................................................................ 9

Specifications ........................................................................................... 9

– 3 –

Connections

SUBWOOFER

OUT

LINE OUT

L

R

RIGHT

LEFT

FRONT SPEAKERS

2

1

SUBWOOFER

OUT

RIGHT LEFT/MONO

(LOW-LEVEL)

INPUT 1

TO MAIN
SPEAKERS

RIGHT

RIGHT LEFT

RIGHT LEFT

LEFT/MONO

MAX

VOLUME

50Hz

200Hz

MIN

ONOFF

FIXED

VARIABLE

POWER

FREQUENCY

CUT OFF FILTER

INPUT 2

(HIGH-LEVEL)

(LOW-LEVEL)

INPUT 1

AUTO POWER ON/STANDBY

PHASE

CANCEL

ON

REVERSE

NORMAL

Checking Your Amplifier

English

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.

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.

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.

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.

If you cannot

find any

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”).

Main (Front) Speakers
(not supplied)

Your Amplifier

SP-DW103

To an AC outlet

Monaural audio cord
(supplied)

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

– 4 –