JVC SX-DW55UJ
Owner's Manual

POWERED SUBWOOFER
LVT1361-004A [B] © 2005 Victor Company of Japan, Limited

SX-DW55
INSTRUCTIONS
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.

0705NSMSANHCE EN

� SAFETY INSTRUCTIONS � �SOME DOS AND DON�TS ON THE SAFE USE OF EQUIPMENT�
This equipment has been designed and manufactured to meet international safety standards but, like any electrical equipment, care must be taken if you are to obtain the best results and safety is to be assured. Do read the operating instructions before you attempt to use the equipment. Do ensure that all electrical connections (including the mains plug, extension leads and interconnections between pieces of equipment) are properly made and in accordance with the manufacturer�s instructions. Switch off and withdraw the mains plug when making or changing connections. Do consult your dealer if you are ever in doubt about the installation, operation or safety of your equipment. Do be careful with glass panels or doors on equipment. DON�T continue to operate the equipment if you are in any doubt about it working normally, or if it is damaged in any way�switch off, withdraw the mains plug and consult your dealer. DON�T remove any �xed cover as this may expose dangerous voltages. DON�T leave equipment switched on when it is unattended unless it is speci�cally stated that it is designed for unattended operation or has a standby mode. Switch off using the switch on the equipment and make sure that your family know how to do this. Special arrangements may need to be made for in�rm of handicapped people. DON�T use equipment such as personal stereos or radios so that you are distracted from the requirements of traf�c safety. It is illegal to watch television whilst driving. DON�T listen to headphones at high volume as such use can permanently damage your hearing. DON�T obstruct the ventilation of the equipment, for example with curtains or soft furnishing. Overheating will cause damage and shorten the life of the equipment. DON�T use makeshift stands and NEVER �x legs with wood screws�to ensure complete safety always �t the manufacturer�s approved stand or legs with the �xings provided according to the instructions. DON�T allow electrical equipment to be exposed to rain or moisture. ABOVE ALL. � NEVER let anyone, especially children, push anything into holes, slots or any other opening in the case�this could result in a fatal electrical shock. � NEVER guess or take chances with electrical equipment of any kind�it is better to be safe than sorry!

IMPORTANT:
DO NOT make any connection to the terminal which is marked with the letter E or by the safety earth symbol or colored green or green-and-yellow. The wires in the mains lead on this product are colored in accordance with the following code: Blue : Neutral Brown : Live As these colors may not correspond with the colored markings identifying the terminals in your plug proceed as follows: The wire which is colored blue must be connected to the terminal which is marked with the letter N or colored black. The wire which is colored brown must be connected to the terminal which is marked with the letter L or colored red.

o Caution�Proper Ventilation
To avoid risk of electric shock and �re, 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 Side View Front
20 cm 15 cm 15 cm 20 cm 20 cm

IF IN DOUBT - CONSULT A COMPETENT ELECTRICIAN.

Warnings, Cautions and Others
o Caution!
To avoid personal injury or accidentally dropping the unit, have two persons unpack, carry, and install the unit.

21 kg
To reduce the risk of electrical shocks, �re, etc.: 1. Do not remove screws, covers or cabinet. 2. Do not expose this appliance to rain or moisture.

10 cm

o Caution�POWER switch

o 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. � 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. � The 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. � When the TV screen shakes, move this unit away from the TV to �nd a position where the screen doesn�t shake and then set the unit there.

This apparatus is provided with 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 [ B ]. The power lamp lights in green or red. 2. Press the AUTO ON / STANDBY switch to the ON [ A ] position. � If no sound comes in for a few minutes, the unit enters standby mode. The power lamp lights in red. � If the unit detects incoming signals, the unit starts operating. The power lamp lights in green. 3. Press out the AUTO ON / STANDBY switch to set it to the [ B ] CANCEL position. The power lamp lights in green. 4. When not in use, set the POWER switch to OFF [ A ]. This disconnects the main line.

IMPORTANT for the U.K.
DO NOT cut off the mains plug from this equipment. If the plug �tted is not suitable for the power points in your home or the cable is too short to reach a power point, then obtain an appropriate safety approved extension lead or consult your dealer. BE SURE to replace the fuse only with an identical approved type, as originally �tted. If nonetheless the mains plug is cut off ensure to remove the fuse and dispose of the plug immediately, to avoid a possible shock hazard by inadvertent connection to the mains supply. If this product is not supplied �tted with a mains plug then follow the instructions given below:

o 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 �ame 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 �lled with liquids, such as vases, shall be placed on the apparatus.

Connections (Make all connections before plugging in this unit.)
Checking Your Ampli�er
Before connecting this unit to your ampli�er (or receiver), check what types of connecting terminals your ampli�er has. Follow the instructions below to �nd 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 ampli�er. The illustrations are of the most used type.

CAUTION
Before connecting this unit to the ampli�er (or receiver), observe the following carefully. � Turn off the ampli�er. � 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 ampli�er.

First check whether your ampli�er has a subwoofer output jack.
It is usually named and printed as the �SUBWOOFER OUT� or �SUBWOOFER.�

Next check whether your ampli�er has line output jacks.
They are usually named and printed as �LINE OUT� or �LINE OUTPUT.�

Follow Connecting Method C.
This connection can be used for two ampli�ers, by connecting the front speaker terminals of the ampli�er (usually named and printed as �FRONT SPEAKERS� or �MAIN SPEAKERS�).
FRONT SPEAKERS

If you �nd it on your ampli�er, follow Connecting Method A.

If you �nd them on your ampli�er, follow Connecting Method B.
LINE OUT

SUBWOOFER OUT

If you cannot �nd any

L

If you cannot �nd any
RIGHT LEFT

1

2

R

o Connecting Method A Preparation:
Use the supplied monaural audio cord.

o Connecting Method B Preparation:
Purchase a stereo audio cord at an audio shop or electric shop.

o Connecting Method C Preparation:
Purchase speaker cords at an audio shop or electric shop.

If your ampli�er has only a monaural line output (MONO) jack, connect it to the MONO jack of the INPUT 1 (LOW LEVEL) terminal. Main (Front) Speakers (not supplied) Main (Front) Speakers (not supplied)

FRONT SPEAKERS
1 2

LINE OUT
Your Ampli�er

RIGHT

LEFT

SUBWOOFER OUT

L R

Speaker cords (not supplied)

Your Ampli�er Monaural audio cord (supplied)

Your Ampli�er Stereo audio cord (not supplied)

Main (Front) Speakers (not supplied) Right speaker Left speaker Speaker cords (not supplied)

RIGHT
VOLUME
MAX MIN

LEFT
VOLUME
MAX MIN

RIGHT
CUT OFF FREQUENCY 200Hz 50Hz PHASE AUTO ON/ STANDBY

LEFT

CUT OFF FREQUENCY
200Hz 50Hz

PHASE
NORMAL REVERSE

AUTO ON/ STANDBY
ON CANCEL

POWER
ON OFF

INPUT 1 (LOW LEVEL)

POWER
ON OFF

NORMAL REVERSE

ON CANCEL

INPUT 1 (LOW LEVEL) INPUT 2 (HIGH LEVEL) RIGHT LEFT MONO
(LOW LEVEL)

INPUT 2 (HIGH LEVEL) RIGHT LEFT

MONO

(LOW LEVEL)

INPUT 2 (HIGH LEVEL) RIGHT LEFT

RIGHT INPUT 1 (LOW LEVEL)

LEFT

OUTPUT
INPUT 1 (LOW LEVEL) RIGHT LEFT

RIGHT

LEFT

OUTPUT
RIGHT LEFT

MONO

(LOW LEVEL)

OUTPUT

MONO

(LOW LEVEL)

OUTPUT

To an AC outlet

To an AC outlet

SX-DW55

SX-DW55

MAX

VOLUME

MIN

200Hz

CUT OFF FREQUENCY

50Hz

PHASE
NORMAL REVERSE

AUTO ON/ STANDBY
ON CANCEL

POWER

ON

OFF

Memo

You can connect two or more subwoofer as desired with this terminal.

INPUT 2 (HIGH LEVEL) RIGHT LEFT

RIGHT

LEFT

(LOW LEVEL)

OUTPUT

INPUT 1 (LOW LEVEL)

RIGHT

LEFT

MONO

(LOW LEVEL)

OUTPUT

RIGHT

LEFT

To an AC outlet

SX-DW55