YST-SW011,030_UB.book Page i Wednesday, December 15, 2004 5:56 PM
UB
YST-SW011
SUBWOOFER SYSTEM
OWNER’S MANUAL
i
YST-SW011,030_UB.book Page i Wednesday, December 15, 2004 5:56 PM
IMPORTANT SAFETY INSTRUCTIONS
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.
•
Read these instructions.
2
Keep these instructions.
3
Heed all warnings.
4
Follow all instructions.
5
Do not use this apparatus near water.
6
Clean only with dry cloth.
7
Do not block any ventilation openings. Install in
accordance with the manufacturer’s instructions.
8
Do not install near any heat sources such as radiators,
heat registers, stoves, or other apparatus (including
amplifiers) that produce heat.
9
Do not defeat the safety purpose of the polarized or
grounding-type plug. A polarized plug has two
blades with one wider than the other. A grounding
type plug has two blades and a third grounding prong.
The wide blade or the third prong are provided for
your safety. If the provided plug does not fit into your
outlet, consult an electrician for replacement of the
obsolete outlet.
Explanation of graphic symbols:
The lightning flash with arrowhead
symbol within an equilateral triangle is
intended to alert you to the presence of
uninsulated “dangerous voltage” within
the product’s enclosure that may be of
sufficient magnitude to constitute a risk
of electric shock to persons.
The exclamation point within an
equilateral triangle is intended to alert
you to the presence of important
operating and maintenance (servicing)
instructions in the literature
accompanying the appliance.
IMPORTANT
Please record the serial number of this system in the
space below.
Model:
Serial No.:
The serial number is located on the rear of the unit.
Retain this Owner’s Manual in a safe place for future
reference.
For Canadian Customers
To prevent electric shock, match wide blade of plug to
wide slot and fully insert.
This Class B digital apparatus complies with Canadian
ICES-003.
This unit features a magnetically shielded design, but
there is still a chance that placing it too close to a TV
set might impair picture color. Should this happen,
move this unit away from the TV set.
i
1
10 Protect the power cord from being walked on or
pinched particularly at plugs, convenience receptacles,
and the point where they exit from the apparatus.
11 Only use attachments/accessories specified by the
manufacturer.
12 Use only with the cart, stand,
tripod, bracket, or table
specified by the
manufacturer, or sold with
the apparatus. When a cart is
used, use caution when
moving the cart/apparatus
combination to avoid injury
from tip-over.
13 Unplug this apparatus during lightning storms or
when unused for long periods of time.
14 Refer all servicing to qualified service personnel.
Servicing is required when the apparatus has been
damaged in any way, such as power-supply cord or
plug is damaged, liquid has been spilled or objects
have fallen into the apparatus, the apparatus has been
exposed to rain or moisture, does not operate
normally, or has been dropped.
15 Be sure to allow spaces of at least 20cm above,
behind and both sides of the unit.
16 Do not place the following objects on the unit:
A vessel with water in it.
If the vessel falls by vibrations and water spills, it
may cause damage to the unit, and/or you may get an
electric shock.
YST-SW011,030_UB.book Page ii Wednesday, December 15, 2004 5:56 PM
FCC INFORMATION (for US customers)
1. IMPORTANT NOTICE: DO NOT MODIFY THIS
UNIT!
This product, when installed as indicated in the
instructions contained in this manual, meets FCC
requirements. Modifications not expressly
approved by Yamaha may void your authority,
granted by the FCC, to use the product.
2. IMPORTANT: When connecting this product to
accessories and/or another product, use only high
quality shielded cables. Cable(s) supplied with this
product MUST be used. Follow all installation
instructions. Failure to follow instructions could void
your FCC authorization to use this product in the
USA.
3. NOTE: This product has been tested and found to
comply with the requirements listed in FCC
Regulations, Part 15 for Class “B” digital devices.
Compliance with these requirements provides a
reasonable level of assurance that your use of this
product in a residential environment will not result
in harmful interference with other electronic
devices.
This equipment generates or uses radio
frequencies and, if not installed and used in
accordance with the instructions in the user’s
manual, may cause interference harmful to the
operation of other electronic devices.
For U.K. customers
If the socket outlets in the home are not suitable for the
plug supplied with this appliance, it should be cut off and
an appropriate 3 pin plug fitted. For details, refer to the
following instructions.
Note: The plug severed from the mains lead must be
destroyed, as a plug with bared flexible cord is hazardous
if engaged in a live socket outlet.
Compliance with FCC regulations does not guarantee
that interference will not occur in all installations. If this
product is found to be the source of interference, which
can be determined by turning the unit “OFF” and “ON,”
please try to eliminate the problem using one of the
following measures:
• Relocate either this product or the device that is being
affected by the interference.
• Utilize power outlets that are on different branch
circuits (circuit breaker or fuse) or install AC line
filter(s).
• In the case of radio or TV interference, relocate or
reorient the antenna. If the antenna lead-in is 300 ohm
ribbon lead, change the lead-in to a coaxial type cable.
If these corrective measures do not produce satisfactory
results, please contact the local retailer authorized to
distribute this product. If you cannot locate the
appropriate retailer, please contact Yamaha Electronics
Corp., U.S.A.; 6660 Orangethorpe Ave; Buena Park, CA
90620.
The above statements apply ONLY to those products
distributed by Yamaha Corporation of America or its
subsidiaries.
SPECIAL INSTRUCTIONS FOR U.K. MODEL
IMPORTANT:
THE WIRES IN 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 BROWN must be connected
to the terminal which is marked with the letter L or
coloured RED. Making sure that neither core is
connected to the earth terminal of the three pin plug.
We Want You Listening for a Lifetime
Yamaha and the Electronic Industries Association’s Consumer Electronics Group want you to get the most enjoyment out of your equipment by playing it at a safe level
— a level that lets the sound come through loud and
clear without annoying blaring or distortion — and, most
importantly, without damaging your sensitive hearing.
Since hearing damage from loud
sounds is often undetectable until it is
too late, Yamaha and the Electronic
Industries Association’s Consumer
Electronics Group recommend that you
avoid prolonged exposure to excessive
volume levels.
ii
YST-SW011,030_UB.book Page iii Wednesday, December 15, 2004 5:56 PM
Precautions: Read this before operating this unit
• To assure the finest performance, please read this manual
carefully. Keep it in a safe place for future reference.
• Install this unit in a cool, dry, clean place - away from
windows, heat sources, sources of excessive vibration,
dust, moisture and cold. Avoid sources of humming
(transformers, motors). To prevent fire or electrical
shock, do not expose this unit to rain or water.
• Never open the cabinet. If any foreign objects drop into
the set, contact your dealer.
• The voltage to be used must be the same as that specified
on the rear panel. Using this unit with a higher voltage
than specified is dangerous and may cause a fire and/or
electric shock.
• To reduce the risk of fire or electric shock, do not expose
this unit to rain or moisture.
• Do not use force on switches, controls, or connection
wires. When moving the unit, first disconnect the power
plug and the wires connected to other equipments.
Never pull the wires themselves.
• When not planning to use this unit for a long period (ie.,
vacation, etc.), disconnect the AC power plug from the
wall outlet.
• To prevent lightning damage, disconnect the AC power
plug when there is an electric storm.
• Since this unit has a built-in power amplifier, heat will
radiate from the rear panel. Place the unit apart from the
walls, allowing at least 20 cm of space above, behind and
on both sides of the unit to prevent fire or damage.
Furthermore, do not position with the rear panel facing
down on the floor or other surfaces.
• Do not cover the rear panel of this unit with a newspaper,
a tablecloth, a curtain, etc. in order not to obstruct heat
radiation. If the temperature inside the unit rises, it may
cause fire, damage to the unit and/or personal injury.
• Do not place the following objects on this unit:
Glass, china, small metallic etc.
If glass etc. falls by vibrations and breaks, it may
cause bodily injury.
A burning candle etc.
If the candle falls by vibrations, it may cause fire and
bodily injury.
A vessel with water in it
If the vessel falls by vibrations and water spills, it
may cause damage to the speaker, and/or you may get
an electric shock.
• VOLTAGE SELECTOR
(For China, Korea, Asia and General models)
The voltage selector switch on the rear panel of this
unit must be set for your local main voltage BEFORE
plugging this unit into the AC main supply. Voltages
are 110–120/220–240 V AC, 50/60 Hz.
iii
• Do not place this unit where foreign objects such as
water drips might fall. It might cause a fire, damage to
this unit, and/or personal injury.
• Never put a hand or a foreign object into the YST port
located on the right side of this unit. When moving this
unit, do not hold the port as it might cause personal
injury and/or damage to this unit.
• Never place a fragile object near the YST port of this
unit. If the object falls or drops by the air pressure, it may
cause damage to the unit and/or personal injury.
• Never open the cabinet. It might cause an electric shock
since this unit uses a high voltage. It might also cause
personal injury and/or damage to this unit.
• When using a humidifier, be sure to avoid condensation
inside this unit by allowing enough spaces around this unit
or avoiding excess humidification. Condensation might
cause a fire, damage to this unit, and/or electric shock.
• Super-bass frequencies reproduced by this unit may
cause a turntable to generate a howling sound. In such a
case, move this unit away from the turntable.
• This unit may be damaged if certain sounds are
continuously outputted at high volume level. For
example, if 20 Hz-50 Hz sine waves from a test disc,
bass sounds from electronic instruments, etc. are
continuously outputted, or when the stylus of a
turntable touches the surface of a disc, reduce the
volume level to prevent this unit from being damaged.
• If you hear distorted noise (i.e., unnatural, intermittent
“rapping” or “hammering” sounds) coming from this
unit, reduce the volume level. Extremely loud playing
of a movie soundtrack’s low frequency, bass-heavy
sounds or similarly loud popular music passages can
damage this subwoofer system.
• Vibration generated by super-bass frequencies may
distort images on a TV. In such a case, move this unit
away from the TV set.
• Do not attempt to clean this unit with chemical solvents
as this might damage the finish. Use a clean, dry cloth.
• Be sure to read the “TROUBLESHOOTING” section
regarding common operating errors before concluding
that the unit is faulty.
• Secure placement or installation is the owner’s
responsibility. YAMAHA shall not be liable for any
accident caused by improper placement or
installation of the subwoofer.
WARNING
TO REDUCE THE RISK OF FIRE OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS UNIT TO RAIN
OR MOISTURE.
YST-SW011,030_UB.book Page 1 Wednesday, December 15, 2004 5:56 PM
Table of contents
Precautions: Read this before operating this unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Supplied accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Positioning the subwoofer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Basic connection example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Connecting components and the subwoofer to AC power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Using the subwoofer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pre-adjusting the subwoofer volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Advanced Yamaha Active Servo Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Frequency characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Introduction
Features
Supplied accessories
Please confirm that the following item is included
in the package.
Advanced YST
Advanced Yamaha Active Servo Technology is a
unique system to let the speaker unit have a perfectly linear motion by the speaker and amplifier
combination.
QD-Bass Technology
QD-Bass (Quatre Dispersion Bass) technology
is a Yamaha unique technology to radiate the
sound efficiently in four horizontal direction.
Non-skid pads
Subwoofer cable
This subwoofer system is equipped with a linear
port unique to Yamaha that provides smoothe bass
response during playback, minimizing extraneous
noise not included in the original input signal.
1
YST-SW011,030_UB.book Page 2 Wednesday, December 15, 2004 5:56 PM
Positioning the subwoofer
One subwoofer will have a good effect on your
audio system, however, the use of two subwoofers
is recommended to obtain more effect.
A
If using one subwoofer, it is recommended to place
it on the outside of either the right or the left front
speaker. (See fig. A .) If using two subwoofers, it is
recommended to place them on the outside of each
front speaker. (See fig. B .) The placement shown
in fig. C is also possible, however, if the subwoofer
system is placed directly facing the wall, the bass
effect may die because the sound from it and the
sound reflected by the wall may cancel out each
other. To prevent this from happening, face the
subwoofer system at an angle as in fig. A or B .
B
Note
There may be a case that you cannot obtain enough
super-bass sounds from the subwoofer when
listening in the center of the room. This is because
“standing waves” have been developed between two
parallel walls and they cancel the bass sounds.
In such a case, face the subwoofer obliquely to the
wall. It also may be necessary to break up the parallel
surfaces by placing bookshelves etc. along the walls.
C
Use the non-skid pads
Put the provided non-skid pads at the four corners
on the bottom of the subwoofer to prevent the
subwoofer from moving by vibrations etc.
(
2
: subwoofer,
: front speaker)
YST-SW011,030_UB.book Page 3 Wednesday, December 15, 2004 5:56 PM
Connections
Caution: Plug the power cables for the subwoofer and other audio/video components into
an AC outlet only after you complete all other
connections.
Basic connection example
Connect a subwoofer cable to the output jack of
your AV amplifier and to the INPUT jack of the
subwoofer.
Connecting components and the
subwoofer to AC power
After you complete a subwoofer connection, plug
the amplifier, other audio/video component, and
the subwoofer into an AC outlet of appropriate
voltage.
Amplifier (The rear panel of various
amplifiers may differ in appearance.)
Subwoofer
INPUT
INPUT
VOLUME
POWER
ON
OFF
To AC outlet
3
YST-SW011,030_UB.book Page 4 Wednesday, December 15, 2004 5:56 PM
Using the subwoofer
Pre-adjusting the subwoofer volume
4
INPUT
Before you use the subwoofer, first adjust the volume balance between the subwoofer and the front
speakers by following the procedure below.
Rear panel
3
1
INPUT
VOLUME
1. Set the VOLUME control to minimum (0).
2. Turn on the power to all other components.
3. Press the POWER switch to the ON position.
VOLUME
The power indicator on the rear panel lights up
green.
POWER
ON
2
4. Play a source that contains low-frequency
OFF
ON
sounds. Adjust the amplifier’s volume control to
the desired listening level.
OFF
5. Increase the volume gradually to adjust the vol-
POWER
ume balance between the subwoofer and the
front speakers. To enjoy natural bass sound,
keep the subwoofer volume at a level where it is
barely distinguishable from other speakers.
6. Adjust the volume of the entire sound system
using the amplifier’s volume control.
1 Power indicator
Lights up GREEN when the POWER switch
(2) is turned ON; turns off when the POWER
switch is turned OFF.
2 POWER switch
Press this switch to the ON position to turn on
the power to the subwoofer. When the power of
the subwoofer is on, the power indicator (1) on
the rear panel lights up green. Press this switch
again to set it to the OFF position to turn off the
power of the subwoofer.
3 VOLUME control
Adjusts the volume level. Turn the control
clockwise to increase the volume, and counterclockwise to decrease the volume.
4 INPUT terminal
Input terminal for line level signals from the
amplifier.
4
Note: It is recommended to set
theVOLUME control about in the middle position when using in a multi channel home theater system.
VOLUME
YST-SW011,030_UB.book Page 5 Wednesday, December 15, 2004 5:56 PM
Advanced Yamaha Active Servo Technology
By employing negative-impedance drive circuits,
the amplifier is able to generate precise, low-amplitude, low frequency waves with superior damping
characteristics.
These waves are then radiated from the cabinet
opening as high-amplitude signals. The system
can, therefore, by employing the negative-impedance output drive amplifier and a speaker cabinet
featuring a Helmholtz resonator, reproduce an
extremely wide range of frequencies with outstanding sound quality and low distortion.
The features described above combine to create the
fundamental structure of conventional Yamaha
Active Servo Technology.
The theory behind Yamaha Active Servo Technology is based on two factors: the Helmholtz resonator and negative-impedance drive. Active Servo
Processing speakers reproduce the bass frequencies through an “air woofer,” which is a port or
opening in the speaker’s cabinet.
This opening is used instead of, and performs the
functions of, a woofer in a conventionally designed
speaker system.
Thus, signals of low amplitude within the cabinet
can, according to Helmholtz resonance theory, be
output from this opening as waves of great amplitude if the size of the opening and the volume of
the cabinet are in proportion to satisfy a certain
ratio. In order to accomplish this, moreover, the
amplitudes within the cabinet must be both precise
and of sufficient power because these amplitudes
must overcome the “load” presented by the air in
the cabinet.
Our new Active Servo Technology — Advanced
Yamaha Active Servo Technology — adopts
Advanced Negative Impedance Converter (ANIC)
circuits, which allow the conventional negative
impedance converter to dynamically vary to select
an optimum value for speaker impedance variation.
With these new ANIC circuits, Advanced Yamaha
Active Servo Technology provides a more stable
performance and improved sound pressure compared to conventional Yamaha Active Servo Technology, resulting in more natural and dynamic bass
reproduction.
This problem is resolved by a design in which the
amplifier supplies special signals. If the electrical
resistance of the voice coil could be reduced to
zero, the movement of the speaker unit would
become linear with respect to signal voltage. To
accomplish this, the system utilizes a special negative-impedance output-drive amplifier that subtracts the output impedance of the amplifier.
Cabinet
High-amplitude
bass sound
Air woofer
(Helmholtz resonator)
Port
Advanced Negative
impedance Converter
Active Servo
Processing
Amplifier
Signals
Signals of low amplitude
5
YST-SW011,030_UB.book Page 6 Wednesday, December 15, 2004 5:56 PM
Troubleshooting
Refer to the chart below if the unit does not function properly. If the problem you are experiencing is not
listed, or if the instructions fail to help you resolve the problem, disconnect the power cord and contact your
authorized Yamaha dealer or service center.
Problem
Cause
Remedy
Power is not supplied even though the
POWER switch is set to the ON position.
The power plug is not securely
connected.
Turn the power switch OFF, then
connect the power plug securely.
No sound.
The VOLUME control is set to 0.
Turn the VOLUME control to the
right (clockwise).
A subwoofer cable is not connected
securely.
Connect a subwoofer cable securely.
Sound level is too low.
You are playing a sound source that
Play a sound source that includes
includes inadequate bass frequencies. more bass frequencies.
The sound level has been diminished
by standing waves.
6
Reposition the subwoofer, or break
up the parallel wall surface by
placing bookshelves or other large
objects along the wall.
YST-SW011,030_UB.book Page 7 Wednesday, December 15, 2004 5:56 PM
Specifications
YST-SW011
Frequency characteristics
Type .....Advanced Yamaha Active Servo Technology
Driver ................................. 20 cm (8") cone woofer
Magnetically shielded type
Output Power ................................................. 50 W
<YST-SW011>
100 dB
90
Dynamic Power .........................................100 W, 5 Ω
80
Input Impedance ...............................................12 kΩ
70
Frequency Response ................... 30 Hz – 200 Hz
60
Input Sensitivity ............. 50 mV (50 Hz, 50 W/5 Ω)
50
Power Supply
[U.S.A. and Canada models] ......... AC 120 V, 60 Hz
[Australia model]............................ AC 240 V, 50 Hz
[China model] .... AC 110–120/220–240 V, 50/60 Hz
[Korea model] .... AC 110–120/220–240 V, 50/60 Hz
[U.K. and Europe models].............. AC 230 V, 50 Hz
[Asia model]....... AC 110–120/220–240 V, 50/60 Hz
[General model].. AC 110–120/220–240 V, 50/60 Hz
40
20
50
100
200
500 Hz
Frequency response graph*
*This diagram does not depict actual frequency
response characteristics accurately.
Specifications are subject to change without notice.
Power Consumption ......................................45 W
Dimensions (W x H x D)
...............................290 mm x 360 mm x 303 mm
Weight ............................................................ 10 kg
7
YST-SW011,030_UB.book Page 8 Wednesday, December 15, 2004 5:56 PM
This product mainly uses lead-free solder.
YAMAHA
YAMAHA
YAMAHA
YAMAHA
YAMAHA
YAMAHA
YAMAHA
© 2005
ELECTRONICS CORPORATION, USA 6660 ORANGETHORPE AVE., BUENA PARK, CALIF. 90620, U.S.A.
CANADA MUSIC LTD. 135 MILNER AVE., SCARBOROUGH, ONTARIO M1S 3R1, CANADA
ELECTRONIK EUROPA G.m.b.H. SIEMENSSTR. 22-34, 25462 RELLINGEN BEI HAMBURG, GERMANY
ELECTRONIQUE FRANCE S.A. RUE AMBROISE CROIZAT BP70 CROISSY-BEAUBOURG 77312 MARNE-LA-VALLEE CEDEX02, FRANCE
ELECTRONICS (UK) LTD. YAMAHA HOUSE, 200 RICKMANSWORTH ROAD WATFORD, HERTS WD18 7GQ, ENGLAND
SCANDINAVIA A.B. J A WETTERGRENS GATA 1, BOX 30053, 400 43 VÄSTRA FRÖLUNDA, SWEDEN
MUSIC AUSTRALIA PTY, LTD. 17-33 MARKET ST., SOUTH MELBOURNE, 3205 VIC., AUSTRALIA
All rights reserved.
Printed in China
WE87470