Onkyo Speaker SKW 204 User Manual

SKW204_En Page 1 Monday, March 20, 2006 9:22 AM  
Contents  
Powered Subwoofer  
Getting Started  
Important Safety Instructions........ 2  
Precautions ..................................... 3  
Supplied Accessories..................... 4  
SKW-204  
Instruction Manual  
Installing & Using  
Controls ........................................... 5  
Connections .................................... 6  
Subwoofer effects........................... 6  
Adjustments .................................... 7  
Placement........................................ 7  
Thank you for purchasing an Onkyo powered  
subwoofer.  
Please read this manual thoroughly before using  
the unit.  
Following the instructions in this manual will  
enable you to obtain optimum performance and  
listening enjoyment from your new powered  
subwoofer.  
Appendix  
Troubleshooting.............................. 7  
Specifications.................................. 8  
Please retain this manual for future reference.  
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SKW204_En Page 3 Monday, March 20, 2006 9:22 AM  
Precautions  
1. AC Fuse—The AC fuse inside the unit is not user-  
serviceable. If you cannot turn on the unit, contact  
your Onkyo dealer.  
For British models  
Replacement and mounting of an AC plug on the power  
supply cord of this unit should be performed only by  
qualified service personnel.  
2. Care—Occasionally you should dust the unit all  
over with a soft cloth. For stubborn stains, use a soft  
cloth dampened with a weak solution of mild deter-  
gent and water. Dry the unit immediately afterwards  
with a clean cloth. Don’t use abrasive cloths, thin-  
ners, alcohol, or other chemical solvents, because  
they may damage the finish or remove the panel let-  
tering.  
IMPORTANT  
The wires in the mains lead are coloured in accordance  
with the following code:  
Blue:  
Neutral  
Brown: Live  
As the colours of the wires in the mains lead of this  
apparatus may not correspond with the coloured mark-  
ings identifying the terminals in your plug, proceed as  
follows:  
The wire which is coloured blue must be connected to  
the terminal which is marked with the letter N or  
coloured black.  
The wire which is coloured brown must be connected to  
the terminal which is marked with the letter L or  
coloured red.  
Use a vacuum cleaner to remove dust from hard-to-  
reach grilles.  
3. Power  
WARNING  
BEFORE PLUGGING IN THE UNIT FOR THE  
FIRST TIME, READ THE FOLLOWING SEC-  
TION CAREFULLY.  
AC outlet voltages vary from country to country.  
Make sure that the voltage in your area meets the  
voltage requirements printed on the unit’s rear panel  
(e.g., AC 230 V, 50 Hz or AC 120 V, 60 Hz).  
IMPORTANT  
The plug is fitted with an appropriate fuse. If the fuse  
needs to be replaced, the replacement fuse must  
approved by ASTA or BSI to BS1362 and have the same  
ampere rating as that indicated on the plug. Check for  
the ASTA mark or the BSI mark on the body of the fuse.  
If the power cord’s plug is not suitable for your socket  
outlets, cut it off and fit a suitable plug. Fit a suitable  
fuse in the plug.  
The power cord plug is used to disconnect this unit  
from the AC power source. Make sure that the plug  
is readily operable (easily accessible) at all times.  
Some models have a voltage selector switch for  
compatibility with power systems around the world.  
Before you plug in such a model, make sure that the  
voltage selector is set to the correct voltage for your  
area.  
For European Models  
For Canadian Models  
For models having a power cord with a polarized plug:  
CAUTION: TO PREVENT ELECTRIC SHOCK,  
MATCH WIDE BLADE OF PLUG TO WIDE SLOT,  
FULLY INSERT.  
Declaration of Conformity  
We,  
ONKYO EUROPE  
ELECTRONICS GmbH  
LIEGNITZERSTRASSE 6,  
82194 GROEBENZELL,  
GERMANY  
Modèle pour les Canadien  
declare in own responsibility, that the ONKYO product  
described in this instruction manual is in compliance with the  
Sur les modèles dont la fiche est polarisée:  
ATTENTION: POUR ÉVITER LES CHOCS ÉLEC-  
TRIQUES, INTRODUIRE LA LAME LA PLUS  
LARGE DE LA FICHE DANS LA BORNE CORRE-  
SPONDANTE DE LA PRISE ET POUSSER  
JUSQU’AU FOND.  
corresponding  
technical standards such as EN60065,  
EN55013, EN55020 and EN61000-3-2, -3-3.  
GROEBENZELL, GERMANY  
K. MIYAGI  
ONKYO EUROPE ELECTRONICS GmbH  
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Supplied Accessories  
Precautions—Continued  
Pin connector cable 10 ft. (3 m)  
Placement  
• The subwoofer cabinet is made out of wood and is  
therefore sensitive to extreme temperatures and  
humidity, do not put it in locations subject to direct  
sunlight or in humid places, such as near an air condi-  
tioner, humidifier, bathroom, or kitchen.  
• Do not put water or other liquids close to the sub-  
woofer. If liquid is spilled over the subwoofer, the  
drive units may be damaged.  
Power-plug adapter  
Only supplied in certain countries. Use this adapter  
if your AC outlet does not match with the plug on  
the AV Receiver’s power cord. (Adapter varies from  
country to country.)  
• Subwoofer should only be placed on sturdy, flat sur-  
faces that are free from vibration. Putting it on uneven  
or unstable surfaces, where it may fall and cause dam-  
age, will affect the sound quality.  
• Subwoofer is designed to be used in the upright verti-  
cal position only. Do not use it in the horizontal or  
tilted position.  
• If the subwoofer is used near a turntable, CD player or  
DVD player, howling or slipping of sound may occur.  
To prevent this, move it away from the turntable, CD  
player or DVD player, otherwise lower the unit’s out-  
put level.  
*
In catalogs and on packaging, the letter added to the end of  
the product name indicates the color of the SKW-204.  
Specifications and operation are the same regardless of  
color.  
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Controls  
FRONT VIEW  
A Standby/On indicator (STANDBY/ON)  
This indicator lights up when the power switch is set to the ON position.  
Red: The unit is in Standby mode  
Green: The unit is in Operational mode  
If the power is turned on, the SKW-204 automatically enters Operational mode when a  
signal is input.  
The SKW-204 automatically returns to Standby mode when no signal has been input  
for a while.  
1
REAR PANEL  
North American Model  
Other Models  
7
2
3
4
(Only some models)  
5
6
To AC outlet  
To AC outlet  
B POWER switch  
E OUTPUT LEVEL knob  
Use this knob to adjust the volume of the sub-  
woofer.  
Press this switch to the ON position to turn on the  
power. Press it to the OFF position to turn off the  
power.  
F LINE INPUT jack  
C FREQUENCY knob  
Connect this jack to the SUBWOOFER PREOUT  
jacks on the amplifier etc.  
Use this knob to select the high-frequency range at  
which to cut off the signal to the subwoofer.  
You can select any frequency between 50 Hz and  
200 Hz, depending on the characteristics of the  
speaker system.  
G VOLTAGE SELECTOR (Only some models)  
This voltage selector provides compatibility with  
power systems around the world.  
D PHASE switch  
Note:  
Use this switch to reverse the phase of the SKW-  
204. Normally, set the switch to the “NOR” posi-  
tion. Depending on the connected speakers or the  
installation environment of the SKW-204 however,  
the “REV” position may result in better sound.  
Select the switch position that produces a louder  
bass sound.  
The auto standby function engages if the input signal  
level is constant. If the auto standby function does not  
operate properly, try slightly increasing (or decreasing)  
the subwoofer output level of the receiver.  
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Connections  
Subwoofer effects  
For safety considerations, turn off all other system com-  
ponents before you connect or disconnect any compo-  
nent and plug the power cable for the last.  
Adding a subwoofer to your speaker system expands the  
bandwidth of the bass range. However, if the sub-  
woofer’s reproduction bandwidth or sound output level  
is improperly adjusted, the overall performance may  
decrease, as shown in the graphs below.  
Using the SKW-204 with an AV  
amplifier  
When the subwoofer’s reproduction bandwidth  
is correct  
When using the SKW-204 in conjunction with an AV  
amplifier or receiver that features surround capability,  
connect the SKW-204 LINE INPUT to SUBWOOFER  
PREOUT jack using the supplied pin connector cable.  
Overall characteristics  
Speaker characteristics  
SUBWOOFER  
PREOUT  
Subwoofer characteristics  
When the subwoofer’s output level is incorrect  
(Supplied)  
Output level is too high  
SKW-204  
Output level is too low  
When the subwoofer’s reproduction bandwidth  
is far from the speaker’s bandwidth  
Curve is sunken  
When the subwoofer’s reproduction bandwidth  
is close to the speaker’s bandwidth  
Curve is raised  
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Adjustments  
Troubleshooting  
Crossover frequency and output level  
The unit does not turn on  
Adjust the SKW-204 output level and crossover fre-  
quency to suit your listening room and connected  
speakers.  
Be aware that you might set the subwoofer to a high  
output level because superbass-range sound is less  
audible than other sound ranges. To obtain well-bal-  
anced frequency characteristics, set the output level  
to a slightly lower level than seems optimal. (This  
will also prevent the input of signals that are too  
strong.)  
• The power plug is not fully inserted.  
Insert the power plug fully into the power outlet.  
No sound is output  
• The OUTPUT LEVEL knob is set to the MIN level.  
Set the OUTPUT LEVEL knob properly.  
• Pin connector cable is not properly connected to the  
LINE INPUT jack.  
• The speaker setting at the amplifier (or receiver) is  
incorrect.  
Check the settings at the amplifier (or receiver).  
Note:  
• The input signal is so small that the unit entered  
Standby mode.  
Slightly increase the output level at the amplifier  
(or receiver).  
Be careful not to allow the input of excessive power.  
Input levels that greatly exceed normal situations can  
damage the SKW-204. Also note that switching opera-  
tions at the amplifier may generate excessive noise that  
may result in damage. When using switches at the  
amplifier, first lower the volume to prevent accidental  
damage.  
Low sound output  
• The sound source might not include a superbass range.  
Play a sound source that includes a superbass  
range.  
Hum noise  
Placement  
• Pin connector plug is not inserted completely.  
Fully insert the pin connector plug.  
The placement of the SKW-204 can greatly affect the  
sound that is produced. In general, a good bass sound  
can be obtained by installing the subwoofer in a front  
corner, or at one-third the width of the wall, as shown.  
• External leakage flux (induction noise by TV, etc.)  
occurs.  
Relocate the SKW-204 away from the noise  
source and re-connect.  
Corner  
1/3 room  
length  
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SKW204_En Page 8 Monday, March 20, 2006 9:22 AM  
Specifications  
Type  
Bass-reflex with built-in power amplifier  
Input sensitivity/impedance 140 mV / 20 kΩ  
Frequency response  
Maximum output power  
Cabinet capacity  
Drivers unit:  
25–200 Hz  
230 W Dynamic  
1.36 cubic feet (38 L)  
10 inch (25 cm) woofer  
North American: AC 120 V, 60 Hz  
Power supply  
European:  
Others:  
AC 230-240 V, 50 Hz  
AC 120/220-240 V, 50/60 Hz  
Power consumption  
North American: 140 W  
Others: 137 W  
Dimensions (W × H × D)  
10-13/16" × 18-5/8" × 16-7/8"  
275 × 473 × 428 mm  
Weight  
26.0 lbs. (11.8 kg)  
Accessory  
Pin connector cable (1 pc.)  
Power plug adapter (1 pc.) (only supplied in certain countries)  
Instruction manual (this manual)  
Auto standby  
Others  
Specifications and appearance are subject to change without prior notice.  
Sales & Product Planning Div. : 2-1, Nisshin-cho, Neyagawa-shi, OSAKA 572-8540, JAPAN  
Tel: 072-831-8023 Fax: 072-831-8124  
ONKYO U.S.A. CORPORATION  
18 Park Way, Upper Saddle River, N.J. 07458, U.S.A.  
Tel: 201-785-2600 Fax: 201-785-2650 http://www.us.onkyo.com/  
ONKYO EUROPE ELECTRONICS GmbH  
Liegnitzerstrasse 6, 82194 Groebenzell, GERMANY  
Tel: +49-8142-4401-0 Fax: +49-8142-4401-555 http://www.eu.onkyo.com/  
ONKYO EUROPE UK Office  
Suite 1, Gregories Court, Gregories Road, Beaconsfield, Buckinghamshire, HP9 1HQ  
UNITED KINGDOM Tel: +44-(0)1494-681515 Fax: +44(0)-1494-680452  
HOMEPAGE  
ONKYO CHINA LIMITED  
Units 2102-2107, Metroplaza Tower I, 223 Hing Fong Road, Kwai Chung,  
N.T., HONG KONG Tel: 852-2429-3118 Fax: 852-2428-9039  
I0603-1  
SN 29344239  
(C) Copyright 2006 ONKYO CORPORATION Japan. All rights reserved.  
* 2 9 3 4 4 2 3 9 *  
 

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