Sony SA-W55X User manual

SONY
Active Super Woofer
A-W55X
Operating Instructions
3-753-154-21(1)
Before operating the unit, please read this manual thoroughly and retain it for future reference.
Owner's Record
The model and serial numbers are located at the rear.
Record the serial number in the space provided below.
Refer to these numbers whenever you call upon your Sony
dealer regarding this product.
Model No. SA-W55X
For the customers in U.S.A.
To prevent fire or shock hazard, do not
expose the unit to rain or moisture.
Serial No.
CAUTION
RISK OF ELECTRIC SHOCK
NO
T OPEN
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.
This symbol is intended to alert the
user to the presence of uninsulated
“dangerous voltage” within the prod-
uct’s enclosure that may be of suffi-
cient magnitude to constitute a risk of
electric shock to persons.
This symbol is intended to alert the
user to the presence of important
operating and maintenance (servicing)
instructions in the literature accompa-
nying the appliance.
© 1991 by Sony Corporation Printed in Japan
CAUTION: Use of this appliance with some systems may
present a shock or fire hazard.
Do not use with any units which have the following marking
located near output, "WARNING!
HAZARDOUS ENERGY|....... "
NOTICE FOR THE CUSTOMERS IN THE UNITED
KINGDOM
IMPORTANT
The wires in this 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 markings
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 brawn must be connected to the
terminal which is marked with the letter L or coloured red.
Do not connect either wire to the earth terminal in the plug
which is marked by the letter E or by the safety earth symbol
+ or coloured green or green-and-yellow.

Connections
Notes on Connection
e The power cord should be connected last of all, after
making sure that the POWER switch is turned off.
e The cable connectors should be fully inserted into the
jacks. Loose connection may cause hum and noise.
¢ The + and - cords of the connection adaptor should be
correctly connected to the + and — terminals of the
amplifier respectively to avoid damaging to each units.
When Connecting the Amplifier Having a Super Woofer Output Terminal with the Audio Cord
Speaker system (R)
Speaker system (L)
SUPER WOOFER
OUT ==
SA-W55X
IN
Audio cord (supplied)
To a wall outlet or
an AC outlet

When Connecting to the Speaker Terminals of the Amplifier with the Connection Adaptor
Speaker system (R) Speaker system (L)
SPEAKER
Amplifier
Yellow cord
to + terminal of
Right channel
Green cord
to + terminal of Left
channel
SA-W55X
Black cords to
— terminals
Connection adaptor
(supplied)
To a wall outlet or
an AC outlet

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FRONT
POWER button and indicator
When the button is pressed, the indicator lights up, and the
unit is set in power stand-by mode - the internal power
amplifier is automatically turned on when receiving any
input signals. When not receiving input signal during a few
minutes, the amplifier is automatically turned off.
Depress the POWER button again when the unit is not
used.
TURNOVER frequency selector
Select the turnover frequency among 60 Hz, 90 Hz, and
120 Hz so that the highest frequency of the unit may
smoothly contact with the lowest frequency of the front
speaker system.
When the front speaker system has a large size woofer, set
the selector to 60 Hz. When the front speaker system has a
medium size woofer, set the selector to 90 Hz. When the
front speaker system has a small size woofer, set the
selector to 120 Hz.
PHASE selector
Set the phase to NORMAL or REVERSE according to the
phase of the front speakers.
BOOST button
To boost the bass sound, depress the button.
VOLUME control
Adjust the control to balance the volume of this unit with
that of the front speaker system.
To increase the volume, turn the control clockwise.
To decrease the volume, turn the control counterclockwise.
When connecting to the compact audio system, MHC-6600,
MHC-5600, MHC-3600, or MHC-2600, of Sony
TURNOVER | PHASE | VOLUME
90 Hz NORMAL Center
REAR
Notes
¢ Do not drive the unit with an extremely high input power
to avoid damaging the speaker system.
¢ Before operating the power switch and the controls of the
amplifier, set the VOLUME control to minimum to avoid
damaging the speaker system by switching noise.
¢ If howling occurs, decrease the volume or keep the unit
away from the turntable system.
[6] Power cord
INPUT terminal
Connect to the connection adaptor or the SUPER WOOFER
(or CENTER) OUT termina! of the amplifier.
To prevent possible damage caused by the magnets
Keep personal credit cards, watches, recorded tapes away
from the unit.
In case color irregularity is observed on nearby TV
screen
With the anti-magnetism design of the unit, 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.
If color irregularity is observed...
Turn off the TV set once, then turn it on after 15 to 30
minutes.
If color irregularity is observed again...
Place the unit more apart from the TV set.

Precautions
Features
On safety
¢ Before connecting the unit to the power at the operating
voltage of your unit is the same as the local power line
voltage.
Where purchased Operating voltage
United Kingdom 240 V AC, 50/60 Hz
e Unplug the unit from the wall outlet if it is not to be used
for an extended period of time. To disconnect the cord,
pull it out by grasping the plug. Never pull the plug out
by the cord.
© Should any liquid or solid object fall into the unit, unplug
the unit and have the unit checked by qualified personnel
before operating it any further.
e AC power cord must be changed only at the authorized
Sony Service Station.
On installation
¢ Do not install the unit 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 unit. Place the unit in a location with
adequate air circulation. Do not place the unit on a soft
surface and closely near a wall to avoid obstructing the
ventilation hall of the back.
On cleaning the cabinet
Clean the cabinet, panel and controls with a soft cloth
lightly moistened with a mild detergent solution. Do not use
any type of abrasive pad, scouring powder or solvent such
as alcohol or benzine.
For the customers in the USA
For detailed safety precautions, see the leaflet
“IMPORTANT SAFEGUARDS”
lf you have any question or problem concerning your unit
that is not covered in this manual, please consult your
nearest Sony dealer.
SA-W55X is an active super woofer for compensating the
bass sound of the front speaker systems.
e SA-W55X has a 65-W (U.S.A. model) or 75-W (U.K. model)
amplifier which can be automatically turned on and off by
sensing the input signal.
e The turnover frequency can be selected among 60 Hz,
90 Hz, and 120 Hz.
e The phase can be changed in phase or opposite phase
with the front speakers.
e With the anti-magnetism design of the speaker system,
SA-W55X has very little affect on a TV.

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AUDIO
POWER
SPECIFICATIONS
Speaker
section
ches)
cone!
cm
(4
inches)
cone
(for
U.S.A.
model)
Pee
ae
POWER
OUTPUT
AND
TOTAL
HARMONIC
Enclosure
Bass
reflex
DISTORTION:
‘i
;
:
.
enera
With
12
ohm
load,
from
20
—
120
Hz;
rated
Power
requirement
U.S.A.
model:
120
V
AC,
60
Hz
65
watts
per
minimum
RMS
power,
with
no
U.K.
model:
240
V
AC,
50/60
Hz
more
than
0.5%
total
harmonic
distortion
Power
consumption
we
cence
aT
“A.
moael:
from
250
milliwatts
to
rated
output.
Sinensione
Approx.
160
x
365
x
315
mm
(65/16
x
143/,
x
123/g
inches)
Amplifier
section
(wih/d)
Continuous
RMS
power
output
Weight
Approx.
9
kg
(19
Ib.
13
oz.)
U.S.A.
model:
65
W
Accessories
Audio
cord
(1)
U.K.
model:
75
W
Connection
adaptor
(1)
Harmonic
distortion
U.S.A.
model:
Less
than
0.5%
at
rated
output
Design
and
specifications
subject
to
change
without
notice.
U.K. model: Less than 5% at
at 70 Hz, 12 ohms
Inputs
Input jack Jack type Sensitivity
This appliance conforms with EEC Directives 76/889 and
82/499 regarding interference suppression.
INPUT Phono 150 mV 10 kohms
(at 70 Hz)
Phase control NORMAL, REVERSE
Turnover frequencies 60 Hz, 90 Hz, 120 Hz
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Before going through the check list below, first refer back to the connection and operating procedures.
Should any problem persist after you have made these checks, consult your nearest Sony dealer.
No audio eCheck power cord connection.
Check input connections.
e Adjust VOLUME control.
Lack of bass sound partially * Adjust the PHASE and TURNOVER selectors.
Severe hum or noise Keep the audio components further away from the TV.
¢Keep the connecting cords away from transformer, motors,
fluorescent lights, or computers.
Fully insert connecting cord plugs.
¢ Clean any dirty plugs and jacks with a cloth lightly moistened with
alcohol.