AB
NS-P20
(NS-B20 + NS-C20 + NS-SW20)
SPEAKER PACKAGE
OWNER'S MANUAL
Precautions
Please read the following operating precautions before use. Yamaha will not be held responsible for any damage and/or
injury caused by not following the cautions below.
1. To assure the finest performance, please read this
manual carefully. Keep it in a safe place for future
reference.
2. Install the speakers in a cool, dry, clean place – away
from windows, sources of heat, sources of excessive
vibration, dust, moisture or cold. Avoid sources of
electrical humming (e.g., transformers and motors). To
prevent fire or electric shock, do not expose the
speakers to rain or water.
3. To prevent the enclosure from warping or discoloring,
do not expose the speakers to direct sunlight or
excessive humidity.
4. Avoid installing the speakers where foreign objects may
fall onto them and/or where they may be exposed to
liquid dripping or splashing.
5. Do not place the following objects on top of the
speakers:
– Other components, as they might damage or discolor
the surface of the speakers.
– Burning objects (e.g., candles), as they might cause
fire, damage to the speakers or personal injury.
– Containers of liquid, as they might spill and cause
electric shock to the user or damage to the speakers.
6. Do not place the speakers where they are liable to be
knocked over or struck by falling objects. Stable
placement will also ensure better sound performance.
7. Placing the speakers on the same shelf or rack as the
turntable can result in feedback.
8. Any time you note distortion, reduce the volume control
on your amplifier to lower setting. Never allow your
amplifier to be driven into “clipping”. Otherwise, the
speakers may be damaged.
9. When using an amplifier with a rated output power
higher than the nominal input power of the speakers,
care should be taken not to exceed the maximum input
of the speakers.
10. Do not attempt to clean the speakers with chemical
solvents as this might damage the finish. Use a clean,
dry cloth.
11. Do not attempt to modify or fix the speakers. Contact
qualified Yamaha service personnel when service is
needed. The cabinet should never be opened for any
reason.
12. Be sure to read the “Troubleshooting” section regarding
common operating errors before concluding that the
speakers are faulty.
13. Secure placement or installation is the owner’s
responsibility. Yamaha is not liable for accidents
caused by improper placement or installation of
speakers.
For NS-SW20
WARNING
TO REDUCE THE RISK OF FIRE OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS APPLIANCE TO
RAIN OR MOISTURE.
1. Do not operate this unit upside down. It may overheat,
possibly causing damage.
2. Do not use excessive force on switches, controls or
connection wires. When moving this unit, first
disconnect the power plug and the wires connected to
other equipment. Never pull the wires themselves.
3. Never put a hand or a foreign object into the 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.
4. Since this unit has a built-in power amplifier, heat
radiates from the rear panel. Place the unit away from
walls, allowing at least 20 cm (8") of space above,
behind and on both sides of the unit to prevent fire or
damage. Furthermore, do not position the unit with the
rear panel facing down on the floor or other surfaces.
5. When using a humidifier, be sure to avoid condensation
inside this unit by allowing enough space around the
unit and avoiding excess humidification. Condensation
might cause fire, damage to the unit, and/or electric
shock.
6. Do not cover the rear panel of this unit with a
newspaper, tablecloth, curtain, etc. to avoid obstructing
heat radiation. If the temperature inside the unit rises, it
may cause fire, damage to the unit, or personal injury.
7. Do not plug this unit into a wall outlet until all
connections are complete.
8. The voltage to be used must match that specified on the
rear panel. Using this unit with a voltage higher than
specified is dangerous and may cause fire, damage to
the unit, and/or personal injury. Yamaha is not
responsible for damage resulting from use of this unit
with a voltage other than specified.
9. Super-bass sound reproduced by this unit may cause a
turntable to generate audio feedback. In this case, move
the unit away from the turntable.
10. This unit may be damaged if certain sounds are
continuously output at high volume level. For example,
if 20 Hz–50 Hz sine waves from a test disc or bass
sounds from an electronic instrument, etc. are
continuously output, or if a turntable stylus touches the
surface of a disc, reduce the volume level to prevent the
unit from being damaged.
11. If you hear distorted noise (i.e., unnatural, intermittent
“rapping” or “hammering” sounds) from this unit,
reduce the volume level. Extremely loud movie
soundtrack low frequency, bass-heavy sounds, or
similarly loud popular music passages can damage this
unit.
12. Vibration generated by super-bass sound may distort
images on a TV. In this case, move the unit away from
the TV set.
13. When disconnecting the power cord from the wall
outlet, grasp the plug; do not pull the cord.
14. When you plan not to use this unit for a long period of
time (i.e. vacation, etc.), disconnect the AC power plug
from the wall outlet.
15. Install this unit near the wall outlet and where the AC
power plug can be reached easily.
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Precautions
• VOLTAGE SELECTOR
(For China, Korea, Asia and General models)
The voltage selector switch on the rear panel of this
unit must be set to your local main voltage BEFORE plugging this unit into the AC main supply.
Voltages are 110-120/220-240 V AC, 50/60 Hz.
This unit is not disconnected from the AC power
source as long as it is connected to the wall outlet, even
if this unit itself is turned off. In this state, this unit is
designed to consume a very small quantity of power.
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
instructions described below.
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.
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. Make sure that neither wire is
connected to the earth terminal of a three pin plug.
ii En
Information for Users on Collection and Disposal
of Old Equipment
This symbol on the products, packaging,
and/or accompanying documents means
that used electrical and electronic
products should not be mixed with
general household waste.
For proper treatment, recovery and
recycling of old products, please take
them to applicable collection points, in
accordance with your national legislation
and the Directives 2002/96/EC.
By disposing of these products correctly,
you will help to save valuable resources
and prevent any potential negative effects
on human health and the environment
which could otherwise arise from
inappropriate waste handling.
For more information about collection
and recycling of old products, please
contact your local municipality, your
waste disposal service or the point of sale
where you purchased the items.
[Information on Disposal in other
Countries outside the European Union]
This symbol is only valid in the European
Union. If you wish to discard these items,
please contact your local authorities or
dealer and ask for the correct method of
disposal.
Contents
Package contents................................................1
Installing the speakers.......................................1
Installing the front, center, and surround
speakers ...........................................................2
Installing the subwoofer.......................................2
Wall-mounting the speakers................................2
Connecting the speakers .................................. 3
Connection diagram.............................................3
Connecting the power cables ..............................4
Using the Subwoofer ......................................... 4
Setting the subwoofer volume .............................4
Troubleshooting ................................................. 5
Specifications...................................................... 6
Package contents
Make sure the package contains the following items.
Front and surround
speakers (NS-B20) x4
Subwoofer
(NS-SW20) x1
Subwoofer cable
5 m (16 ft.) x1
Center speaker
(NS-C20) x1
Non-skid pad
Speaker cable 25 m (82 ft.) x1
(To be cut into 5 lengths for the
front, center, and surround
speakers. Take care to prevent
injury when preparing the cables.)
Non-skid pads: When
placing the speakers on
a flat surface, affix the
included non-skid pads
to the corners of the
speaker undersides, as
shown. The pads will
prevent the speaker
from moving around.
Non-skid pads (24 pcs.) x1
(For the front, center and surround
speakers. Including 4 spare non-skid pads.)
Installing the speakers
Before you connect the speakers, place each speaker in
its respective location. Speaker positioning is very
important as it affects the overall sound quality of the
system. Place the speakers in locations that will
optimize the sound quality at your listening position.
Refer to the illustration.
•
Center
The position of the subwoofer is not as critical as the
position of the other speakers because sub-bass
sounds are not very directional. Refer to “Installing the
subwoofer” on page 2 for more information.
Note
• Placing the speakers too close to a CRT-type TV
may impair the picture color or cause a buzzing
noise. In this case, move the speakers at least 20 cm
(8") away from the TV. This is not an issue with LCD
and plasma TVs.
Front
right
Front
left
Surround
left
Subwoofer
Surround
right
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Installing the speakers
Installing the front, center,
and surround speakers
Front speakers: Place the two front speakers on the
left and right sides of the TV facing directly forward.
Surround speakers: Place the left and right
surround speakers behind your listening position,
facing slightly inward.
The front and surround speakers can be placed on a
flat surface or wall- mounted.
See “Wall-mounting the speakers” for more
information.
Center speaker: Place the center speaker centrally
between the front speakers, facing directly forward.
Wall-mounting the speakers
You can mount the speakers on the wall as follows.
1
2
Install screws into a solid wall or wall support
as shown below. Use 3.5 to 4 mm (1/8")
diameter self-tapping screws.
Hang each speaker by its keyhole slots onto
the protruding screws.
Note
• Make sure the shaft of the screw is seated in the
narrow part of the keyhole slot. Otherwise, the
speaker may fall.
Wall/wall
support
Installing the subwoofer
Place the subwoofer on the outside of either the right
or the left front speaker, as shown in A and B.
A
NS-B20
6 mm
(1/4")
Minimum
20 mm (3/4")
B
150 mm
(5-7/8")
NS-C20
Warnings
C
Note: Standing waves
may make it difficult to
hear bass sounds here.
Subwoofer
Front speaker
The placement shown in C is also possible, however, if
the subwoofer is placed directly facing a wall and your
listening position is in the center of the room, you may
not be able to obtain enough bass sound from the
subwoofer. This is because “standing waves” are
forming between the two parallel walls and cancelling
out the bass sounds. In this case, position the
subwoofer at an angle to the wall. It may be necessary
to break up parallel wall surfaces by placing
bookshelves, etc., along them.
2 En
• NS-B20 speaker weighs 0.48 kg (1.06 lbs.) and
NS-C20 speaker weighs 0.68 kg (1.50 lbs.). Do not
mount the speakers on thin plywood or on a wall
with a soft surface material. Otherwise, the screws
may pull out of the surface and the speakers may fall,
possibly damaging the speakers or causing personal
injury.
• Do not affix the speakers to a wall using nails,
adhesives, or unstable hardware. Long-term use and
vibration may cause the speakers to fall.
• To avoid accidents resulting from tripping over loose
speaker cables, affix the cables to the wall.
• Mount the speakers in a wall location that will be
unlikely to result in injury to an individual’s head.
Connecting the speakers
Caution: Make sure the power cables for the subwoofer and your other AV components are disconnected from the
AC wall outlets before making any connections.
Connection diagram
Surround speakers
Right
Left
Center speaker
SPEAKERS
FRONT
SURROUND
CENTER
Amplifier
DOCK
ANTENNA
(BD/DVD)
HDMI OUT
HDMI 2
HDMI 1
HDMI 3
HDMI 4
FM
GND AM
COMPONENT
VIDEO
PR
PR
PB
PB
75
SPEAKERS
FRONT
SURROUND
Y
SUBWOOFER
MONITOR OUT
Y
COMPONENT
VIDEO
OPTICAL
AV 1
Subwoofer
To AC wall outlet
Once you’ve positioned the speakers, you’ll need to cut
the 25-meter (82 ft.) speaker cable to make five cables
for connecting the two front speakers, center speaker,
and the two surround speakers.
2
AV 2
COAXIAL
OPTICAL
(CD)
( TV )
AV 3
AV 4
AV 5
AV
OUT
AUDIO 1
AUDIO 2
AUDIO
OUT
SUBWOOFER
Note: The
exact layout of
the speaker
terminals
depends on
your amplifier.
■ Preparing the speaker cables
1
COAXIAL
CENTER
MONITOR OUT
VIDEO
Cut the included speaker cable to suitable
lengths for the front, center, and surround
speakers. You need five cables.
Remove about 10 mm (3/8") of insulation from
the end of each speaker cable.
Right
3
Front speakers
Left
Twist the bare wires tightly.
10 mm (3/8")
Good
No Good
Notes
• Make the speaker cables as short as possible. Do not
bundle or roll up excess cable.
• Twist the bare wires tightly so the individual strands
are not splayed.
• Be careful not to injure yourself while preparing the
speaker cables.
3 En
■ Operating the speaker terminals
Negative (–)
Positive (+)
1
3
1
2
3
4
2
Note: Make sure the
terminal is gripping
the bare wire, not
the insulation.
Press and hold the terminal tab.
■ Connecting the speakers
Connect each speaker to the appropriate speaker
terminals on your amplifier by using the cables you
prepared earlier. See the “Connection diagram” on
page 3 for reference.
Make sure you connect the speakers with the correct
polarity—positive (+) terminals to positive (+)
terminals, and negative (–) terminals to negative (–)
terminals. If you get them crossed over, the sound will
be unnatural and lack bass.
In your AV receiver’s speaker size settings, specify
small (or “S”) for all of the NS-P20 speakers.
Insert the bare wire.
Release the tab so that it closes securely on the
bare wire, not the insulation.
Test the security of the connection by pulling
gently on the cable.
Notes
• Make sure the bare wires do not touch each other, as
this could damage the speaker or the amplifier.
• If the connections are faulty, you will hear no sound
from the speakers.
If you’re connecting the subwoofer to a Yamaha DSP
amplifier or AV receiver, connect to its SUBWOOFER
or LOW PASS output.
Connecting the power cables
Once you’ve completed all of the speaker and
subwoofer connections, plug the subwoofer, amplifier,
and your other AV components into suitable AC wall
outlets.
Using the Subwoofer
4 POWER switch
Set this to ON to turn on the subwoofer. Set it to
OFF to turn off the subwoofer.
Setting the subwoofer volume
The very first time you use the subwoofer, you need to
set the volume balance between the subwoofer and the
front speakers as follows.
1
2
3
Rear panel
1 Power indicator
Lights up when the POWER switch is set to ON;
goes off when the POWER switch is set to OFF.
2 INPUT jack
Input jack for connecting the line-level subwoofer
output on your amplifier.
3 VOLUME control
Adjusts the volume of the subwoofer. Turn it
clockwise to increase the volume;
counterclockwise to decrease the volume.
4 En
4
5
Turn on your other AV components.
Set the subwoofer’s VOLUME control to
minimum (0).
Set the subwoofer’s POWER switch to ON.
The power indicator on the rear panel lights up.
Play a audio source that contains lowfrequency bass sounds. Set the amplifier’s
volume control to a suitable level.
Turn the subwoofer’s VOLUME control up
gradually until you achieve a good balance
between the subwoofer and the other
speakers.
Notes
• Once the subwoofer volume has been set, you can
leave the subwoofer’s VOLUME control set as it is
and use your amplifier’s volume control to adjust the
volume of the entire system.
• If you replace the front speakers (NS-B20) with
other speakers, you will need to re-adjust the
subwoofer’s volume.
Troubleshooting
If this product doesn’t work as expected, look for a possible cause below. If the issue you are experiencing is not
listed, or you cannot resolve it after reading through these instructions, disconnect the power cable and contact an
authorized Yamaha dealer or service center.
■ Front, surround speakers (NS-B20) and center speaker (NS-C20)
Issue
Possible cause
Remedy
There’s no sound.
The speaker cables are not
connected properly.
Make sure the speaker cables are connected properly.
The sound is very quiet.
The speaker cables are not
connected properly.
Make sure the speaker cables are connected properly:
L (left) to L, R (right) to R, “+” to “+” and “–” to “–”.
■ Subwoofer (NS-SW20)
Issue
Possible cause
Remedy
The POWER switch is set
to ON but the subwoofer
doesn’t work.
The power cable is not connected Set the POWER switch to OFF, then make sure the power
properly.
cable is connected properly.
There’s no sound.
The VOLUME control is set to 0. Turn up the VOLUME control.
The subwoofer is too
quiet.
The subwoofer cable is not
connected properly.
Make sure the subwoofer cable is connected properly.
The source material doesn’t
contain much bass.
Try playing source material that contains more bass.
Bass sounds are being cancelled
out by standing waves.
Reposition the subwoofer, or break up parallel wall surfaces
by placing bookshelves or other large objects along the wall.
5 En
Specifications
■ Front, surround speakers (NS-B20) and
center speaker (NS-C20)
Type...........................................Full range acoustic suspension
non magnetic shielding type
Driver ...................................................7 cm (2-3/4") cone type
Nominal input power ....................................................... 30 W
Maximum input power .................................................. 100 W
Impedance ............................................................................. 6 Ω
Frequency response
NS-B20 ................................................70 Hz-25 kHz (-10 dB)
-45 kHz (-30 dB)
NS-C20................................................65 Hz-25 kHz (-10 dB)
-45 kHz (-30 dB)
Sensitivity
NS-B20 .........................................................83 dB/2.83 V, 1 m
NS-C20.........................................................84 dB/2.83 V, 1 m
Dimensions (W x H x D)
NS-B20 .......... 115 x 176 x 88 mm (4-1/2" x 6-7/8" x 3-1/2")
NS-C20.....................291 x 101 x 103 mm (11-1/2" x 4" x 4")
Weight
NS-B20 ......................................................... 0.48 kg (1.06 lbs.)
NS-C20......................................................... 0.68 kg (1.50 lbs.)
■ Subwoofer (NS-SW20)
Type ......................Advanced Yamaha Active Servo Technology
Driver ............................................16 cm (6-1/2") cone woofer
non magnetic shielding type
Amp output power.............. 50 W (100 Hz, 5 Ω, 10% T.H.D)
Amp dynamic power .............................................. 100 W, 5 Ω
Input impedance .................INPUT (1P RCA pin jack): 10 kΩ
Frequency response ...........................................30 Hz–160 Hz
Input sensitivity............................INPUT (1P RCA pin jack):
80 mV (50 Hz, 50 W/5 Ω)
Power supply
U.S.A. and Canada models ..........................AC 120 V, 60 Hz
Australia model.............................................AC 240 V, 50 Hz
U.K. and Europe models..............................AC 230 V, 50 Hz
China, Korea, Asia and
General models ........... AC 110–120/220–240 V, 50/60 Hz
Dimensions (W x H x D) .......................262 x 264 x 299 mm
(10-3/8" x 10-3/8" x 11-3/4")
Weight .............................................................. 7.0 kg (15.4 lbs.)
Specifications are subject to change without notice.
Limited Guarantee for European Economic Area (EEA) and Switzerland
Thank you for having chosen a Yamaha product. In the unlikely event that your Yamaha product needs guarantee service, please contact the dealer from
whom it was purchased. If you experience any difficulty, please contact Yamaha representative office in your country. You can find full details on our
website (http://europe.yamaha.com/warranty/).
The product is guaranteed to be free from defects in workmanship or materials for a period of two years from the date of the original purchase. Yamaha
undertakes, subject to the conditions listed below, to have the faulty product or any part(s) repaired, or replaced at Yamaha’s discretion, without any
charge for parts or labour. Yamaha reserves the right to replace a product with that of a similar kind and/or value and condition, where a model has been
discontinued or is considered uneconomic to repair.
Conditions
1. The original invoice or sales receipt (showing date of purchase, product code and dealer’s name) MUST accompany the defective product, along with
a statement detailing the fault. In the absence of this clear proof of purchase, Yamaha reserves the right to refuse to provide free of charge service and
the product may be returned at the customer’s expense.
2. The product MUST have been purchased from an AUTHORISED Yamaha dealer within the European Economic Area (EEA) or Switzerland.
3. The product must not have been the subject of any modifications or alterations, unless authorised in writing by Yamaha.
4. The following are excluded from this guarantee:
a. Periodic maintenance and repair or replacement of parts due to normal wear and tear.
b. Damage resulting from:
(1) Repairs performed by the customer himself or by an unauthorised third party.
(2) Inadequate packaging or mishandling, when the product is in transit from the customer. Please note that it is the customer’s responsibility to
ensure the product is adequately packaged when returning the product for repair.
(3) Misuse, including but not limited to (a) failure to use the product for its normal purpose or in accordance with Yamaha’s instructions on the
proper use, maintenance and storage, and (b) installation or use of the product in a manner inconsistent with the technical or safety standards in
force in the country where it is used.
(4) Accidents, lightning, water, fire, improper ventilation, battery leakage or any cause beyond Yamaha’s control.
(5) Defects of the system into which this product is incorporated and/or incompatibility with third party products.
(6) Use of a product imported into the EEA and/or Switzerland, not by Yamaha, where that product does not conform to the technical or safety
standards of the country of use and/or to the standard specification of a product sold by Yamaha in the EEA and/or Switzerland.
5. Where the guarantee differs between the country of purchase and the country of use of the product, the guarantee of the country of use shall apply.
6. Yamaha may not be held responsible for any losses or damages, whether direct, consequential or otherwise, save for the repair or replacement of the
product.
7. Please backup any custom settings or data, as Yamaha may not be held responsible for any alteration or loss to such settings or data.
8. This guarantee does not affect the consumer’s statutory rights under applicable national laws in force or the consumer’s rights against the dealer
arising from their sales/purchase contract.
6 En
Specifications
© 2011 Yamaha Corporation
8 En
Printed in China
WY60290