Sony Speaker SA W303 User Manual

3-862-214-11 (1)  
Act ive  
Su p e r Wo o fe r  
Operating Instructions  
SA-W305/W303  
© 1998 by Sony Corporation  
 
TABLE OF CONTENTS  
Welcome!  
Thank you for purchasing the Sony  
Active Super Woofer. Before operating  
this woofer, please read this manual  
thoroughly and retain it for future  
reference.  
Getting Started  
Unpacking 4  
Installation 4  
Hooking Up the System 5  
Basic Operations  
Listening to the Sound 8  
Adjusting the Sound 9  
Additional Information  
Precautions 10  
Troubleshooting 10  
Specifications 11  
3
 
Ge t t in g St a rt e d  
Unpacking  
Installation  
Check that you received the following items:  
• Audio connecting cord (1)  
• Speaker cord (2)  
Since the human ear cannot detect the direction and  
position where the bass sound being reproduced by a  
woofer (below 150 Hz) comes from, you can install the  
woofer wherever you like in your room. To obtain a  
better bass reproduction, we recommend you to install  
the woofer on a solid floor where the resonance is  
unlikely to occur.  
You can obtain a sufficient heavy bass reproduction  
from a single woofer. However if you use a couple of  
the woofers, you can obtain an even more effective  
heavy bass reproduction.  
Notes  
Always install the woofer vertically, keeping a few  
centimeters from away the wall.  
Do not place an object on the woofer or sit on it.  
If the woofer is installed in the center of a room, the bass  
could be extreamely weakened. This is due to the  
influence of the standing wave of the room. If this  
happened, move the woofer away from the center of a  
room or eliminate the cause of the standing wave, by  
installing a bookshelf on the wall, etc.  
4
 
Ge t t in g St a rt e d  
Hooking Up the System  
Overview  
Use the LINE IN jack or the SPEAKER IN terminals of  
the woofer when you connect the amplifier.  
• If your amplifier has one of the following types of  
output jacks, connect the LINE IN jack and the  
amplifier's jack using the supplied audio connecting  
cord.  
— MONO OUT jack  
— MIX OUT jack  
— SUB WOOFER output jack(s)  
— SUPER WOOFER output jack(s)  
• If your amplifier does not have the above mentioned  
output jacks, connect the speaker terminals of the  
amplifier to the SPEAKER IN terminals instead.  
LINE IN  
LINE  
IN  
OUT  
IN  
OUT  
+
L
+
L
R
R
+
+
SPEAKER  
SPEAKER IN  
Before you get started  
• Turn off the power of the amplifier and the woofer  
before making any connection.  
• Use the audio connecting cords that are supplied to  
the respective equipment. If there are not enough  
audio connecting cords to make the necessary  
connections, you need to purchase some optional  
audio connecting cords.  
• Be sure to make connections firmly to avoid noise.  
• Connect the AC power cord from the woofer to a  
wall outlet.  
• You cannot connect the CENTER output jack for use  
with Dolby Pro Logic function to the woofer. Bass  
sound is not output with some Dolby Pro Logic  
modes.  
(continued)  
5
 
Ge t t in g St a rt e d  
Connecting to an amplifier with a single set  
of speaker terminals  
Connecting to an amplifier with  
double(A+B) sets of speaker terminals  
If your amplifier is equipped with a single set of  
speaker terminals, connect the woofer to the amplifier,  
and then connect the front speakers to the woofer.  
If your amplifier has double(A+B) sets of speaker  
terminals, connect both the woofer and the front  
speakers to the amplifier.  
What cords will I need?  
What cords will I need?  
Speaker cord (supplied) (1 for each speaker)  
Speaker cord (supplied) (1 for each speaker)  
2
Twist the stripped ends of the cord about /  
3
inch (15 mm).  
2
Twist the stripped ends of the cord about /  
3
inch (15 mm).  
Be sure to match the speaker cord to the appropriate  
Hookups  
terminal on the componentes: + to + and – to –. If the cords  
are reversed, the sound will be distorted and will lack bass.  
It is useful to decide that the speaker cord marked with a  
line is always the positive (+) and should be connected to the  
positive (+) terminal to avoid any improper connections.  
1
Connect the front speakers to the amplifier.  
Connect the speakers to your amplifiers speaker  
terminals (A).  
Amplifier  
SPEAKER  
A
Hookups  
1
Connect the woofer to the amplifier.  
Connect the SPEAKER IN terminals of the woofer  
to the amplifiers speaker terminals with the  
speaker cords. Be sure to connect both L and R  
channels.  
Front  
Speaker (R)  
Front  
Speaker (L)  
ç: signal flow  
Amplifier  
SPEAKER  
2
Connect the woofer to the amplifier.  
Connect the SPEAKER IN terminals of the woofer  
to the amplifiers speaker terminals (B) using  
speaker cords (supplied).  
This w oofer  
IN  
OUT  
+
L
+
L
Amplifier  
SPEAKER  
B
R
R
+
+
This w oofer  
SPEAKER  
IN  
OUT  
+
L
+
L
2
Connect the front speakers to the woofer.  
Connect the speakers to the speaker terminals of  
the woofer.  
R
+
R
+
This w oofer  
IN  
OUT  
SPEAKER  
+
L
+
L
When using the double (A +B) sets of speakers, make  
sure that you select the “A +Bposition with your  
amplifier.  
Front  
Speaker (R)  
Front  
Speaker (L)  
R
+
R
+
SPEAKER  
Note  
When you are using speaker terminal (A) only (front speaker  
only) or when the power of the amplifier is turned off, turn  
down the volume or turn off the power of the woofer  
otherwise, hum noise may be heard.  
6
 
Ge t t in g St a rt e d  
Connecting to an amplifier with a special  
jack for a super woofer  
When using this woofer for both left (L)  
and right (R) channels  
If your amplifier has a special jack for a super woofer  
(like a MONO OUT jack, MIX OUT jack, SUB  
This w oofer  
This w oofer  
Amplifier  
LINE  
LINE  
MONO OUT  
WOOFER jack or SUPER WOOFER jack), connect the  
LINE IN jack of the woofer to one of those jacks.  
IN  
OUT  
IN  
OUT  
What cords will I need?  
Audio connecting cord (supplied) (1)  
Connecting the AC power cord  
Hookups  
Connect the AC power cord from the woofer and from  
your amplifier to a wall outlet.  
Connect the MONO OUT jack of your amplifier to the  
LINE IN jack of the woofer with the supplied audio  
connecting cord.  
This w oofer  
Amplifier  
LINE  
MONO OUT  
IN  
OUT  
Note  
If the output level of your amplifier is not large enough, the  
sound may not be loud enough. In this case, connect the  
speaker terminals of the amplifier directly to the SPEAKER  
IN terminals of the woofer.  
7
 
Ba sic Op e ra t io n s  
List e n in g t o t h e So u n d  
POWER  
LEVEL  
CUT OFF FREQ  
PHASE  
MIN  
MAX  
50Hz  
200Hz  
ø
Ø
NORMAL  
REVERSE  
U
POWER LEVEL  
Turn on the amplifier and select the program source.  
1
2
Press POWER.  
The woofer turns on and the POWER indicator lights up in green.  
Note  
Play the program source.  
Never set the amplifiers tone  
control (BASS, TREBLE, etc.) or the  
equalizer output to a high level or  
input sinewaves of 20 Hz to 50 Hz  
recorded on a commercially-  
available test disc or special sound  
(bass sound of electronic musical  
instrument, pop noise of analog  
disc turntable, sound with  
abnormally enhanced bass, etc.) in  
a high level to this unit. These  
actions may cause damage to the  
speakers.  
3
Adjust the VOLUME so that sound from front speakers is not  
distorted.  
If it is distorted, the sound from the woofer will also be distorted.  
To turn off the pow er  
Press POWER to release the switch.  
If you hear noise when you turn off the woofer, turn down the LEVEL of the  
woofer, or turn off the amplifier before turning off the woofer.  
When a special disc containing  
abnormally enhanced bass is  
played, noise may be output in  
addition to the original sound. In  
such a case, decrease the sound  
level.  
Note  
The sub woofer output signal  
(DOLBY digital (AC-3) signal) of  
the digital surround processor sold  
singularly is set 10 dB higher by  
Dolby laboratories Licensing  
Corporation. In the case of using  
normally, adjust the sub woofer  
level.  
8
 
Ba sic Op e ra t io n s  
Ad ju st in g t h e So u n d  
You can adjust the sound of the woofer to suit the sound of your front speakers. Reinforcing the bass sound gives  
you a greater sense of atmosphere.  
POWER  
LEVEL  
CUT OFF FREQ  
PHASE  
MIN  
MAX  
50Hz  
200Hz  
ø
Ø
NORMAL  
REVERSE  
U
LEVEL CUT OFF FREQ  
PHASE  
Note  
Adjust the cut-off frequency.  
If the sound distorts when you  
turn on the bass reinforcement  
from your amplifier (such as,  
DBFB, GROOVE, the graphic  
equalizer, etc.), turn off the bass  
reinforcement and adjust the  
sound.  
1
Turn the CUT OFF FREQ control, depending on the reproduction  
frequencies of your front speakers.  
80Hz  
3
2
Refer to the following when adjusting.  
65Hz  
140Hz  
1 Typical very small sized speakers: 5 – 7 cm dia.  
2 Typical small sized speakers: 8 –15 cm dia.  
3 Typical medium sized speakers: 16 –24 cm dia.  
4
1
50Hz  
200Hz  
4 Typical large sized speakers: more than 25 cm dia.  
To make the most of the low level converter function of Dolby digital,  
turn the CUT OFF FREQ as high as possible when playing back the  
Dolby digital (AC-3).  
Adjust the volume level of the woofer.  
2
3
Turn the LEVEL control so that you can hear the bass sound a little  
more than before. Do not raise the bass excessively as this will result  
in the loss of balance and depth. To increase the volume, turn the  
control clockwise. To decrease the volume, turn the control  
counterclockwise.  
Play your favorite song and movie.  
Male vocal tunes and voice containing bass sounds are most suitable  
for adjustment. Turn the volume for front speakers to the same level  
as usual. When playing a movie, raise the volume higher than the  
level for music to produce a more powerful sound.  
Note  
Selecting NORMAL or REVERSE  
with the PHASE button reverses  
the polarity and may provide  
better bass reproduction in certain  
listening environments (depending  
on the type of front speakers, the  
position of the woofer and the  
adjustment of the cut-off  
Select the phase polarity.  
4
5
Press the PHASE button to select the phase polarity.  
Repeat steps 1 to 4 to adjust for your preference.  
Once you have adjusted the woofer to the settings you desire, use the  
VOLUME control on the amplifier to adjust the volume of the woofer  
with that of the other speakers. You dont need to adjust the woofer  
settings when you change the volume level of the amplifier.  
frequency). It may also change the  
expanse and tightness of the  
sound, and effect the feeling of the  
sound field. Select the setting that  
provides the sound you prefer  
when listening in your normal  
listening position.  
9
 
Ad d it io n a l In fo rm a t io n  
Precautions  
Troubleshooting  
If you experience any of the following difficulties while  
using the woofer, use this troubleshooting guide to  
help you remedy the problem. Should any problem  
persist, consult your nearest Sony dealer.  
On safety  
• Before operating the woofer, be sure that the operating  
voltage of your woofer is identical with that of your local  
power supply.  
• Unplug the woofer from the wall outlet if it is not to be  
used for an extended period of time. To disconnect the  
cord, pull the cord by grasping the plug. Never pull the  
cord itself.  
Theres no sound.  
/Check that this woofer and components are connected  
correctly and securely.  
• Should any liquid or solid object fall into the woofer,  
unplug the woofer and have the woofer checked by  
qualified personnel before operating it any further.  
• AC power cord must be changed only at the qualified  
service shop.  
/Turn LEVEL clockwise to turn the volume up.  
/Reset the level.  
The sound has suddenly stopped.  
/The speaker cords may have short-circuited. Connect  
the cords properly.  
When turning on or off an amplifier or other equipment  
Lower the volume of the amplifier to minimum.  
The sound is distorted.  
/The input signal is imperfect.  
To avoid damaging the woofer  
• Be careful in setting the volume control of the amplifier to  
/The input signal level is too high.  
/Set the CUT OFF FREQ as high as possible when  
playing back the Dolby digital (AC-3).  
avoid an excessive input power.  
• Do not attempt to open the enclosuer or remold speaker  
units and networks.  
Severe hum or noise is heard.  
• The grill net is not removable. Do not remove it.  
/Connect the ground wire of the turntable properly.  
/The contacts between the plugs of the connecting cords  
and the corresponding jacks have not been made  
properly. Connect the plugs firmly.  
In case color irregularity is observed on the nearby TV  
screen  
With the magnetically shielded type of the speaker system,  
the speakers can be installed near a TV set. However, color  
irregularity may still be observed on the TV screen  
depending on the type of your TV set.  
/The audio system is picking up some noise from a TV  
set. Move the audio system away from the TV set or  
turn the TV set off.  
If color irregularity is observed...  
nTurn off the TV set once, then turn it on after 15 to 30  
minutes.  
If color irregularity is observed again...  
nPlace the speakers further apart from the TV set.  
When howling occurs  
Relocate the speaker or turn down the volume of the  
amplifier.  
On installation  
• Do not install the woofer near heat sources such as  
radiators or air ducts, or in a place subject to direct  
sunlight, excessive dust, mechanical vibration or shock.  
• Good ventilation is essential to prevent internal heat  
build-up in the woofer. Place the woofer in a location  
with adequate air circulation. Do not place the woofer on  
a soft surface or too close to a wall as this may obstruct the  
ventilation hole on the back.  
On cleaning the cabinet  
Clean the cabinet with a soft cloth lightly moistened with  
water. Do not use any type of abrasive pad, scouring  
powder or solvent such as alcohol or benzine.  
If you have any questions or problems concerning your  
woofer that is not covered in this manual, please  
consult your nearest Sony dealer.  
10  
 
Ad d it io n a l In fo rm a t io n  
Specifications  
Audio power specifications  
POWER OUTPUT AND TOTAL HARMONIC  
DISTORTION:  
With 6 ohms loads, from 20 – 150 Hz; rated 60 watts  
(SA-W305)/ 50 watts (SA-W303) per channel minimum  
RMS power, with no more than 0.8 % total harmonic  
distortion from 250 milliwatts to rated output.  
System  
Type  
Active Super Woofer (magnetically shielded  
design)  
Speaker unit  
Woofer: 16cm dia. (63/  
in.) x 1  
8
Practical maximum output  
SA-W305: 60 W (50 Hz)  
SA-W303: 50 W (50 Hz)  
Reproduction frequency range  
28 – 200 Hz  
High frequency cut-off frequency  
50 Hz – 200 Hz  
Phase selector  
NORMAL, REVERSE  
Inputs  
Input jacks  
LINE IN: Input pin jack  
SPEAKER IN: Input terminals  
General  
Power requirements  
120V, 60 Hz  
Power consumption  
35 W  
Dimensions Approx. 205 x 380 x 365 mm (w/ h/ d)  
(81/  
8
x 15 x 14 3/  
in.)  
8
Mass  
9.5 kg (20lb 15oz)  
Supplied accessories  
Audio connecting cord  
(1 phono plug – 1 phono plug) (1)  
Speaker cord (2)  
Design and specifications are subject to change without  
notice.  
11  
 
Sony Corporation Printed in China  
 

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