ENGLISH
A10/A12/A15/A12M
A15W
Owner’s Manual
SPEAKER SYSTEM
SUBWOOFER
EN
ZH
2
Thank you for choosing this YAMAHA speaker system. In order to take maximum advantage of the speaker’s fea-
tures and ensure maximum performance and longevity, please read this manual carefully before using the speaker
system. Keep the manual in a safe place for future reference.
PRECAUTIONS
PLEASE READ CAREFULLY BEFORE PROCEEDING
* Please keep this manual in a safe place for future reference.
WARNING
Always follow the basic precautions listed below to avoid the possibility of serious injury or even death from electrical
shock, short-circuiting, damages, fire or other hazards. These precautions include, but are not limited to, the following:
• Do not open the device or attempt to disassemble the internal parts or
modify them in any way. The device contains no user-serviceable parts.
If it should appear to be malfunctioning, discontinue use immediately
and have it inspected by qualified Yamaha service personnel.
• Do not expose the device to rain, use it near water or in damp or wet
conditions, or place containers on it containing liquids which might
spill into any openings.
CAUTION
Always follow the basic precautions listed below to avoid the possibility of physical injury to you or others, or damage
to the device or other property. These precautions include, but are not limited to, the following:
• If you use a stand, make sure to observe the following precautions in
order to avoid toppling the device or causing damage to the internal
components.
- Check the stand’s specifications and make sure that it is sturdy enough to
support the weight of the speaker.
- Mount only one speaker on each speaker stand.
- Use the supplied screws if included.
-Tighten fastening screws securely.
- Use the speaker stands with their legs fully opened.
- Use the stand at a height of less than 140cm (55").
- Add weight such as sand bags around the stand legs to prevent them from
falling over.
- Remove the speakers from the stands before moving the stands or adjusting
their height.
- Limit the number of people around the placed stand.
We recommend using the TS-80 and TS-90 speaker stands
manufactured by Ultimate Support Systems, Inc. (sold separately) to
support the speakers.
• If you use the metal socket on the subwoofer for mounting of a satellite
speaker, use a pole no longer than 90cm (35.4") with an outer diameter
of 35mm (1-3/8"). Use of any other size pole may cause the device to
fall, and result in injury or damage to the internal components.
• When transporting or moving the device, always use two or more
people. Attempting to lift the device by yourself may damage your back,
result in other injury, or cause damage to the device itself.
• Before moving the device, remove all connected cables.
• Do not use the speaker’s handles for suspended installation. Doing so
can result in damage or injury.
• Do not expose the device to excessive dust or vibrations, or extreme
cold or heat (such as in direct sunlight, near a heater, or in a car during
the day) to prevent the possibility of panel disfiguration or damage to
the internal components.
• Do not place the device in an unstable position where it might
accidentally fall over.
Do not open
Water warning
Location
(6)-1
3
ENGLISH
• Before connecting the device to other devices, turn off the power for all
devices. Before turning the power on or off for all devices, set all
volume levels to minimum.
• Use only speaker cables for connecting speakers to the speaker jacks.
Use of other types of cables may result in fire.
• Be sure to observe the amplifier’s rated load impedance (see page 4),
particularly when connecting speakers in parallel. Connecting an
impedance load outside the amplifier's rated range can damage the
amplifier.
• When choosing a power amplifier to use with your speakers, make sure
that its power output matches the speakers’ power capacity (refer to the
Specifications on page 4). Even if the amplifier’s power output is lower
than the speakers’ PGM (program) power capacity, the speakers may be
damaged when clipping of a high input signal occurs. The following
may cause damage to speakers:
- Feedback caused when using a microphone.
- Continuous high sound pressure level produced by electronic instruments.
- Continuous high-power output of distorted signals.
- Popping noises caused by turning on equipment, or by connecting or
disconnecting system components while the amplifier is turned on.
• When turning on the AC power in your audio system, always turn on the
power amplifier LAST, to avoid speaker damage. When turning the
power off, the power amplifier should be turned off FIRST for the same
reason.
• Do not operate this device at high volume levels or at a level that is
uncomfortable, since it is capable of producing sound levels that could
cause permanent hearing loss. If you experience any discomfort or
ringing in the ears, or suspect an hearing loss, you should consult an
audiologist.
Protective Circuit (poly switch)
All full-range loudspeakers are fitted with a self-resetting poly switch that protects
the high-frequency driver from damage caused by excessive power. If a
loudspeaker cabinet loses high-frequency output, immediately remove power from
the unit and wait for two to three minutes. This should be long enough to allow the
poly switch to reset. Reapply power and check the performance of the high-
frequency driver before continuing, with the power reduced to a level that does not
cause the poly switch to interrupt the signal. (On the subwoofers, the poly switch
protects the woofer and a similar routine should be followed if the output is lost.)
• Use only Neutrik NL4FC plugs for connecting Speakon connectors.
* Illustrations in this manual are for explanatory purposes only, and may
not match the actual appearance of the product during operation.
* Company names and product names used in this Owner’s Manual are
trademarks or registered trademarks of their respective owners.
Before Making Connections
■ Phone Plug Wiring
Phone plugs for connection to the phone jack inputs should be wired as
shown on the right. Be sure to use proper speaker cable — NOT shielded
instrument or line cable — for all speaker connections.
■ Neutrik NL4FC Plug Wiring
If you will be using the Neutrik connectors for speaker input,
wire the plugs as shown to the right. Be sure to use proper
speaker cable — NOT shielded instrument or line cable — for all
speaker connections.
Connections
Handling caution
Special Notice
Yamaha cannot be held responsible for damage caused by improper use or modifications to the device.
2– (NO USE)
2+ (NO USE)
1+ : HOT (+)
1– : COLD (–)
Neutrik NL4FC connector
4
■ Subwoofer Parallel-connection
The subwoofer A15W features four input/parallel connectors—two 1/4" phone jacks and two Neutrik NL4MP con-
nectors. Use either a phone jack or a Neutrik connector to receive input from your sound system/power amplifier.
One of the spare connectors can be used to parallel-connect an additional main speaker (keeping in mind the imped-
ance considerations mentioned below).
■ Impedance Considerations
When connecting speakers in parallel be sure to check the rated load impedance of the power amplifier. Most power
amplifiers are capable of safely driving speakers with minimum impedance of 8 ohms or 4 ohms. A pair of parallel-
connected 8-ohm speakers have a total impedance of 4 ohms. Two 8-ohm speakers can safely be paralleled on one
output. 4-ohm speakers, however, should not be parallel-connected with other speakers. These models can be con-
nected in parallel, however, if you are using a power amplifier that can safely drive load impedances of 2 ohms or
lower. Check your speaker impedance in the table below.
Specifications
*: EIA RS-426
Model A10 A12 A15 A12M A15W
Type
2 way Bass reflex
Bass reflex
Speaker Unit
LF
10" cone 12" cone 15" cone 12" cone 15" cone
HF
1" VC, Horn-TW —
Frequency Response
65 Hz-20 kHz 60 Hz-20 kHz 65 Hz-20 kHz
50 Hz-200 Hz
with the internal low
pass filtering
Power Capacity
NOISE*
125 W 150 W 200 W 150 W 250 W
PGM
250 W 300 W 400 W 300 W 500 W
MAX
500 W 600 W 800 W 600 W 1000 W
Nominal Impedance
8
Ω
Sensitivity
96 dB SPL (1 W, 1 m) 97 dB SPL (1 W, 1 m) 98 dB SPL (1 W, 1 m) 97 dB SPL (1 W, 1 m) 97 dB SPL (1 W, 1 m)
Input Connectors
1/4" phone jack
× 1, Neutrik SPEAKON NL4MP
× 1
1/4" phone jack
× 2,
Neutrik SPEAKON
NL4MP
× 2
Socket Mount Diameter
35 mm (1 - 3/8")
Dimensions (W
×H
×D)
385 mm
× 542 mm
×
307 mm
405 mm
× 582 mm
×
323 mm
470 mm
× 672 mm
×
375 mm
582 mm
× 405 mm
×
323 mm
485 mm
× 622 mm
×
485 mm
Weight
13.0 kg 15.5 kg 21.5 kg 15.5 kg 28.0 kg
H
W
D
77.5
°
102.5
°
H
W
D
120
°
30
°
H
W
D
A10/A12/A15 A12M A15W
Unit: mm
Specifications and descriptions in this owner’s manual are for information purposes only. Yamaha Corp.
reserves the right to change or modify products or specifications at any time without prior notice. Since specifi-
cations, equipment or options may not be the same in every locale, please check with your Yamaha dealer.
For details of products, please contact your nearest Yamaha
representative or the authorized distributor listed below.
CANADA
Yamaha Canada Music Ltd.
135 Milner Avenue, Scarborough, Ontario,
M1S 3R1, Canada
Tel: 416-298-1311
U.S.A.
Yamaha Corporation of America
6600 Orangethorpe Ave., Buena Park, Calif. 90620,
U.S.A.
Tel: 714-522-9011
MEXICO
Yamaha de México S.A. de C.V.
Calz. Javier Rojo Gómez #1149,
Col. Guadalupe del Moral
C.P. 09300, México, D.F., México
Tel: 55-5804-0600
BRAZIL
Yamaha Musical do Brasil Ltda.
Av. Reboucas 2636-Pinheiros CEP: 05402-400
Sao Paulo-SP. Brasil
Tel: 011-3085-1377
ARGENTINA
Yamaha Music Latin America, S.A.
Sucursal de Argentina
Viamonte 1145 Piso2-B 1053,
Buenos Aires, Argentina
Tel: 1-4371-7021
PANAMA AND OTHER LATIN
AMERICAN COUNTRIES/
CARIBBEAN COUNTRIES
Yamaha Music Latin America, S.A.
Torre Banco General, Piso 7, Urbanización Marbella,
Calle 47 y Aquilino de la Guardia,
Ciudad de Panamá, Panamá
Tel: +507-269-5311
THE UNITED KINGDOM
Yamaha-Kemble Music (U.K.) Ltd.
Sherbourne Drive, Tilbrook, Milton Keynes,
MK7 8BL, England
Tel: 01908-366700
GERMANY
Yamaha Music Central Europe GmbH
Siemensstraße 22-34, 25462 Rellingen, Germany
Tel: 04101-3030
SWITZERLAND/LIECHTENSTEIN
Yamaha Music Central Europe GmbH,
Branch Switzerland
Seefeldstrasse 94, 8008 Zürich, Switzerland
Tel: 01-383 3990
AUSTRIA
Yamaha Music Central Europe GmbH,
Branch Austria
Schleiergasse 20, A-1100 Wien, Austria
Tel: 01-60203900
THE NETHERLANDS
Yamaha Music Central Europe,
Branch Nederland
Clarissenhof 5-b, 4133 AB Vianen, The Netherlands
Tel: 0347-358 040
BELGIUM/LUXEMBOURG
Yamaha Music Central Europe GmbH,
Branch Belgium
Rue de Geneve (Genevastraat) 10, 1140 - Brussels,
Belgium
Tel: 02-726 6032
FRANCE
Yamaha Musique France
BP 70-77312 Marne-la-Vallée Cedex 2, France
Tel: 01-64-61-4000
ITALY
Yamaha Musica Italia S.P.A.
Combo Division
Viale Italia 88, 20020 Lainate (Milano), Italy
Tel: 02-935-771
SPAIN/PORTUGAL
Yamaha-Hazen Música, S.A.
Ctra. de la Coruna km. 17, 200, 28230
Las Rozas (Madrid), Spain
Tel: 91-639-8888
SWEDEN
Yamaha Scandinavia AB
J. A. Wettergrens Gata 1
Box 30053
S-400 43 Göteborg, Sweden
Tel: 031 89 34 00
DENMARK
YS Copenhagen Liaison Office
Generatorvej 6A
DK-2730 Herlev, Denmark
Tel: 44 92 49 00
NORWAY
Norsk filial av Yamaha Scandinavia AB
Grini Næringspark 1
N-1345 Østerås, Norway
Tel: 67 16 77 70
OTHER EUROPEAN COUNTRIES
Yamaha Music Central Europe GmbH
Siemensstraße 22-34, 25462 Rellingen, Germany
Tel: +49-4101-3030
Yamaha Corporation,
Asia-Pacific Music Marketing Group
Nakazawa-cho 10-1, Hamamatsu, Japan 430-8650
Tel: +81-53-460-2313
TURKEY/CYPRUS
Yamaha Music Central Europe GmbH
Siemensstraße 22-34, 25462 Rellingen, Germany
Tel: 04101-3030
OTHER COUNTRIES
Yamaha Music Gulf FZE
LB21-128 Jebel Ali Freezone
P.O.Box 17328, Dubai, U.A.E.
Tel: +971-4-881-5868
THE PEOPLE’S REPUBLIC OF CHINA
Yamaha Music & Electronics (China) Co.,Ltd.
25/F., United Plaza, 1468 Nanjing Road (West),
Jingan, Shanghai, China
Tel: 021-6247-2211
INDONESIA
PT. Yamaha Music Indonesia (Distributor)
PT. Nusantik
Gedung Yamaha Music Center, Jalan Jend. Gatot
Subroto Kav. 4, Jakarta 12930, Indonesia
Tel: 21-520-2577
KOREA
Yamaha Music Korea Ltd.
Tong-Yang Securities Bldg. 16F 23-8 Yoido-dong,
Youngdungpo-ku, Seoul, Korea
Tel: 02-3770-0660
MALAYSIA
Yamaha Music Malaysia, Sdn., Bhd.
Lot 8, Jalan Perbandaran, 47301 Kelana Jaya,
Petaling Jaya, Selangor, Malaysia
Tel: 3-78030900
SINGAPORE
Yamaha Music Asia Pte., Ltd.
#03-11 A-Z Building
140 Paya Lebor Road, Singapore 409015
Tel: 747-4374
TAIWAN
Yamaha KHS Music Co., Ltd.
3F, #6, Sec.2, Nan Jing E. Rd. Taipei.
Taiwan 104, R.O.C.
Tel: 02-2511-8688
THAILAND
Siam Music Yamaha Co., Ltd.
891/1 Siam Motors Building, 15-16 floor
Rama 1 road, Wangmai, Pathumwan
Bangkok 10330, Thailand
Tel: 02-215-2626
OTHER ASIAN COUNTRIES
Yamaha Corporation,
Asia-Pacific Music Marketing Group
Nakazawa-cho 10-1, Hamamatsu, Japan 430-8650
Tel: +81-53-460-2317
AUSTRALIA
Yamaha Music Australia Pty. Ltd.
Level 1, 99 Queensbridge Street, Southbank,
Victoria 3006, Australia
Tel: 3-9693-5111
COUNTRIES AND TRUST
TERRITORIES IN PACIFIC OCEAN
Yamaha Corporation,
Asia-Pacific Music Marketing Group
Nakazawa-cho 10-1, Hamamatsu, Japan 430-8650
Tel: +81-53-460-2313
NORTH AMERICA
CENTRAL & SOUTH AMERICA
EUROPE
AFRICA
MIDDLE EAST
ASIA
OCEANIA
HEAD OFFICE
Yamaha Corporation, Pro Audio & Digital Musical Instrument Division
Nakazawa-cho 10-1, Hamamatsu, Japan 430-8650
Tel: +81-53-460-2441
PA11
U.R.G., Pro Audio & Digital Musical Instrument Division, Yamaha Corporation
© 2004 Yamaha Corporation
410CR-01A0
Printed in China
Yamaha Pro Audio global web site
http://www.yamahaproaudio.com/
Yamaha Manual Library
http://www2.yamaha.co.jp/manual/english/
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