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ENGLISH Owner’s Manual 使用说明书 SPEAKER SYSTEM A10/A12/A15/A12M SUBWOOFER A15W EN ZH  Thank you for choosing this YAMAHA speaker system. In order to take maximum advantage of the speaker’s features 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 Water warning • 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. • 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. 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: • 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. Location • 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. • 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. - 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. • 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. 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. 2 (6)-1  Special Notice • 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. 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 highfrequency 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. Handling caution • 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: - * 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. 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. Yamaha cannot be held responsible for damage caused by improper use or modifications to the device. 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 1+ : HOT (+) speaker connections. 2– (NO USE) 2+ (NO USE) 1– : COLD (–) Neutrik NL4FC connector 3 ENGLISH Connections  ■ Subwoofer Parallel-connection The subwoofer A15W features four input/parallel connectors—two 1/4" phone jacks and two Neutrik NL4MP connectors. 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 impedance 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 parallelconnected 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 connected 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 Model A10 A12 A15 2 way Bass reflex 12" cone 15" cone 1" VC, Horn-TW Type LF HF Speaker Unit 10" cone Frequency Response 65 Hz-20 kHz NOISE* PGM MAX Power Capacity 125 W 250 W 500 W 150 W 300 W 600 W Nominal Impedance Sensitivity A12M A15W Bass reflex 12" cone 15" cone — 50 Hz-200 Hz with the internal low pass filtering 250 W 500 W 1000 W 60 Hz-20 kHz 65 Hz-20 kHz 200 W 400 W 800 W 8Ω 150 W 300 W 600 W 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) 1/4" phone jack × 2, Neutrik SPEAKON 1/4" phone jack × 1, Neutrik SPEAKON NL4MP × 1 NL4MP × 2 35 mm (1 - 3/8") 385 mm × 542 mm × 405 mm × 582 mm × 470 mm× 672 mm × 582 mm × 405 mm × 485 mm × 622 mm × 307 mm 323 mm 375 mm 323 mm 485 mm 13.0 kg 15.5 kg 21.5 kg 15.5 kg 28.0 kg Input Connectors Socket Mount Diameter Dimensions (W×H×D) Weight *: EIA RS-426 A10/A12/A15 77.5° A12M A15W 102.5 ° 120 ° H H H D W 30 ° D W D W 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 specifications, equipment or options may not be the same in every locale, please check with your Yamaha dealer. 4  For details of products, please contact your nearest Yamaha representative or the authorized distributor listed below. NORTH AMERICA CANADA Yamaha Canada Music Ltd. 135 Milner Avenue, Scarborough, Ontario, M1S 3R1, Canada Tel: 416-298-1311 关于各产品的详细信息，请向就近的 YAMAHA 代理商或下列 经销商询问。 ASIA BELGIUM/LUXEMBOURG Yamaha Music Central Europe GmbH, Branch Belgium Rue de Geneve (Genevastraat) 10, 1140 - Brussels, Belgium Tel: 02-726 6032 FRANCE U.S.A. Yamaha Corporation of America 6600 Orangethorpe Ave., Buena Park, Calif. 90620, U.S.A. Tel: 714-522-9011 CENTRAL & SOUTH AMERICA 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 EUROPE 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 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 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 Yamaha Music Asia Pte., Ltd. #03-11 A-Z Building 140 Paya Lebor Road, Singapore 409015 Tel: 747-4374 YS Copenhagen Liaison Office Generatorvej 6A DK-2730 Herlev, Denmark Tel: 44 92 49 00 TAIWAN Yamaha KHS Music Co., Ltd. 3F, #6, Sec.2, Nan Jing E. Rd. Taipei. Taiwan 104, R.O.C. Tel: 02-2511-8688 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 AFRICA Yamaha Corporation, Asia-Pacific Music Marketing Group Nakazawa-cho 10-1, Hamamatsu, Japan 430-8650 Tel: +81-53-460-2313 MIDDLE EAST TURKEY/CYPRUS Yamaha Music Central Europe GmbH Siemensstraße 22-34, 25462 Rellingen, Germany Tel: 04101-3030 Yamaha Music Gulf FZE LB21-128 Jebel Ali Freezone P.O.Box 17328, Dubai, U.A.E. Tel: +971-4-881-5868 Yamaha Music & Electronics (China) Co.,Ltd. 25/F., United Plaza, 1468 Nanjing Road (West), Jingan, Shanghai, China Tel: 021-6247-2211 SINGAPORE DENMARK OTHER COUNTRIES THE PEOPLE’S REPUBLIC OF CHINA 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 OCEANIA 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 THE NETHERLANDS Yamaha Music Central Europe, Branch Nederland Clarissenhof 5-b, 4133 AB Vianen, The Netherlands Tel: 0347-358 040 HEAD OFFICE Yamaha Corporation, Pro Audio & Digital Musical Instrument Division Nakazawa-cho 10-1, Hamamatsu, Japan 430-8650 Tel: +81-53-460-2441 PA11 Yamaha Pro Audio global web site http://www.yamahaproaudio.com/ Yamaha Manual Library http://www2.yamaha.co.jp/manual/english/ U.R.G., Pro Audio & Digital Musical Instrument Division, Yamaha Corporation © 2004 Yamaha Corporation 410CR-01A0 Printed in China