Onkyo Speaker SKW 770 User Manual

Contents  
Powered Subwoofer  
Important Safety Instructions...En-2  
Precautions..............................En-3  
Supplied Accessories.............En-3  
Controls....................................En-4  
Connections.............................En-5  
Adjustments.............................En-6  
Placement ................................En-6  
Troubleshooting......................En-7  
Specifications..........................En-7  
SKW-770  
Instruction Manual  
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.  
Please retain this manual for future reference.  
En  
 
• Subwoofer is designed to be used in the upright vertical  
position only. Do not use it in the horizontal or tilted  
position.  
Precautions  
1. Recording Copyright—Unless it’s for personal use  
only, recording copyrighted material is illegal without  
the permission of the copyright holder.  
2. AC Fuse—The AC fuse inside the unit is not user-  
serviceable. If you cannot turn on the unit, contact  
your Onkyo dealer.  
• 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 output  
level.  
3. 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 detergent and  
water. Dry the unit immediately afterwards with a  
clean cloth. Don’t use abrasive cloths, thinners,  
alcohol, or other chemical solvents, because they may  
damage the finish or remove the panel lettering.  
4. Power  
Connection  
With other audio-video components, connect the  
subwoofer’s LINE INPUT to the subwoofer pre out jack  
of your equipment. Never plug any kind of musical  
instrument to the subwoofer.  
Supplied Accessories  
WARNING  
BEFORE PLUGGING IN THE UNIT FOR THE  
FIRST TIME, READ THE FOLLOWING SECTION  
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).  
• Power cords  
(The plug type varies from country to country. From the  
two supplied power cords, choose the one whose plug  
matches the type of your AC wall outlet.)  
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.  
For models with [POWER] button, or with both  
[POWER] and [ON/STANDBY] buttons:  
Pressing the [POWER] button to select OFF mode  
does not fully disconnect from the mains. If you do  
not intend to use the unit for an extended period,  
remove the power cord from the AC outlet.  
2 m  
1.8 m  
• Pin connector cable 3 m  
• 4 floor pads for the subwoofer  
For models with [ON/STANDBY] button only:  
Pressing the [ON/STANDBY] button to select  
Standby mode does not fully disconnect from the  
mains. If you do not intend to use the unit for an  
extended period, remove the power cord from the AC  
outlet.  
*
In catalogs and on packaging, the letter added to the end of the  
product name indicates the color of the SKW-770.  
Specifications and operation are the same regardless of color.  
Using the Floor Pads for Subwoofer  
Placement  
If the subwoofer is placed  
on a hard floor (wood,  
vinyl, tile, etc.) and  
playback is very loud, the  
subwoofer’s feet may  
• 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  
conditioner, humidifier, bathroom, or kitchen.  
• Do not put water or other liquids close to the subwoofer.  
If liquid is spilled over the subwoofer, the drive units  
may be damaged.  
Pad  
damage the flooring.  
To prevent this, place the supplied pads underneath the  
subwoofer’s feet. The pads also provide a stable base for  
the subwoofer.  
• Subwoofer should only be placed on sturdy, flat surfaces  
that are free from vibration. Putting it on uneven or  
unstable surfaces, where it may fall and cause damage,  
will affect the sound quality.  
En  
3
 
Controls  
FRONT VIEW  
REAR PANEL  
b
c
d
a
a Standby/On indicator  
b AC INLET  
Red: Subwoofer in standby mode  
Blue: Subwoofer on  
The Auto Standby function will automatically set the  
SKW-770 to Standby mode when there is no input  
signal, or when the input signal is below a certain  
level.  
Connects the supplied power cord. From the two  
supplied power cords, choose the one whose plug  
matches the type of your AC wall outlet.  
c OUTPUT LEVEL knob  
Use this knob to adjust the volume of the subwoofer.  
d LINE INPUT jack  
Connect this jack to the SUBWOOFER PREOUT  
jacks on the amplifier etc.  
Note  
• If the Auto Standby function sets the SKW-770 to Standby mode  
even when an input signal is present, the input signal level is too  
low. In this case, increase the subwoofer output level on the  
amplifier or AV receiver connected to the SKW-770.  
En  
4
 
Connections  
For safety considerations, turn off all other system  
components before you connect or disconnect any  
component and plug the power cord for the last.  
Connecting the Power Cord  
Connect the supplied power cord to the subwoofer’s  
1
AC INLET.  
Using the SKW-770 with an AV  
amplifier  
When using the SKW-770 in conjunction with an AV  
amplifier or receiver that features surround capability,  
connect the SKW-770 LINE INPUT to SUBWOOFER  
PREOUT jack using the supplied pin connector cable.  
To AC wall outlet  
SUBWOOFER  
PREOUT  
Plug the power cord into an AC wall outlet.  
2
Note  
• Before connecting the power cord, connect all of your  
speakers and AV components.  
• Turning on the subwoofer may cause a momentary power surge  
that might interfere with other electrical equipment on the same  
circuit. If this is a problem, plug the subwoofer into a different  
branch circuit.  
(Supplied)  
• Do not use a power cord other than the one supplied with the  
subwoofer. The supplied power cord is designed exclusively for  
use with the subwoofer and should not be used with any other  
equipment.  
SKW-770  
• Never disconnect the power cord from the subwoofer while the  
other end is still plugged into a wall outlet. Doing so may cause  
an electric shock. Always disconnect the power cord from the  
wall outlet first, and then the subwoofer.  
Caution  
• With other audio-video components, connect the subwoofer’s  
LINE INPUT to the subwoofer pre out jack of your equipment.  
Never plug any kind of musical instrument to the subwoofer.  
En  
5
 
Adjustments  
Placement  
To set the level of the subwoofer, use the  
OUTPUT LEVEL knob. Set it so that bass  
sounds are evenly balanced with the treble  
sounds from the other speakers. Because our  
ears are less sensitive to very low bass  
The placement of the SKW-770 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.  
sounds, there’s a temptation to set the level of the  
subwoofer too high. As a rule of thumb, set the subwoofer  
level to what you think is the optimal level, and then back  
it off slightly.  
Note  
• Be careful not to allow the input of excessive power. Input levels  
that greatly exceed normal situations can damage the SKW-770.  
Also note that switching operations 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.  
Corner  
1/3 room  
length  
En  
6
 
Troubleshooting  
Specifications  
The unit does not turn on  
Type  
Input sensitivity/impedance  
550 mV/20 k  
25 Hz to 150 Hz  
Rated output power (IEC)  
120 watts minimum continuos power,  
Bass-Reflex  
The power plug is not fully inserted.  
Insert the power plug fully into the power outlet.  
Frequency response  
No sound is output  
The OUTPUT LEVEL knob is set to the MIN level.  
Set the OUTPUT LEVEL knob properly.  
4 ohms, driven at 100 Hz with a maximum  
total harmonic distortion of 1 %  
Cabinet capacity  
Drivers unit  
Power supply  
Power consumption  
Dimensions (W × H × D)  
37 L  
Pin connector cable is not properly connected to the  
LINE INPUT jack.  
25 cm Cone woofer  
AC 220 - 240 V, 50/60 Hz  
137 W  
The speaker setting at the amplifier (or receiver) is  
incorrect.  
Check the settings at the amplifier (or receiver).  
275 mm × 507 mm × 411 mm  
(incl. grille and projection)  
The input signal is so small that the unit entered  
Standby mode.  
Slightly increase the output level at the amplifier  
(or receiver).  
Weight  
Accessory  
11.6 kg  
Power cord (2 pcs.)  
Pin connector cable (1 pc.)  
Instruction manual (this manual)  
Floor pad (4 pcs.)  
If the Standby/On indicator lights up (both red and  
blue LEDs) several seconds or minutes after the  
sound output stopped, this means that the amp  
protection circuit has been activated. In this case, set  
the OUTPUT LEVEL knob to the center position,  
and disconnect the power cord from the AC outlet.  
Wait at least 10 seconds, and then reconnect the  
power cord. If that doesn’t solve the issue, contact  
your Onkyo dealer.  
Others  
Auto Standby function  
Non-magnetic shielding  
Specifications and appearance are subject to change  
without prior notice.  
Low sound output  
The sound source might not include a superbass  
range.  
Play a sound source that includes a superbass  
range.  
Hum noise  
Pin connector plug is not inserted completely.  
Fully insert the pin connector plug.  
External leakage flux (induction noise by TV, etc.)  
occurs.  
Relocate the SKW-770 away from the noise  
source and re-connect.  
En  
7
 
2-1, Nisshin-cho, Neyagawa-shi, OSAKA 572-8540, JAPAN  
Tel: 072-831-8023 Fax: 072-831-8163  
18 Park Way, Upper Saddle River, N.J. 07458, U.S.A.  
Tel: 800-229-1687, 201-785-2600 Fax: 201-785-2650  
Liegnitzerstrasse 6, 82194 Groebenzell, GERMANY  
Tel: +49-8142-4401-0 Fax: +49-8142-4208-213  
The Coach House 81A High Street, Marlow, Buckinghamshire, SL7 1AB, UK  
Tel: +44-(0)1628-473-350 Fax: +44-(0)1628-401-700  
Unit 1033, 10/F, Star House, No 3, Salisbury Road, Tsim Sha Tsui Kowloon, Hong Kong.  
Tel: 852-2429-3118 Fax: 852-2428-9039  
1301, 555 Tower, No.555 West NanJin Road, Jin an, Shanghai,  
China 200041, Tel: 86-21-52131366 Fax: 86-21-52130396  
Y1203-2  
SN 29400910A  
(C) Copyright 2012 Onkyo Sound & Vision Corporation Japan. All rights reserved.  
 
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