Yamaha R15M Owner's Manual - Page 2
Precautions - speakers
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ENGLISH Precautions WARNING In case an abnormality occurs during operation • If you notice any abnormality, such as smoke, odor, or noise, turn the power amp off immediately. Remove the power cord from the AC outlet. Consult your dealer for repair. Using the unit in this condition is a fire and electrical shock hazard. CAUTION Installation • When choosing a location for your speakers, avoid the following: - Direct sunlight, high temperatures (such as near heaters), or excessively low temperatures. - High humidity. - Areas subject to excessive dust accumulation and vibration. - Non-level or unstable surfaces. • To prevent short circuits or breakage of cables, always disconnect cables prior to moving system equipment. • When using two or more speaker systems, be sure match the polarity (+/-) of the speaker system connectors to those at the amplifier. If the polarities do not match, the sounds produced by the speakers will interfere with each other, making it impossible to achieve a well-balanced sound field. • This unit is heavy. Use two or more people to carry it. Operation • To avoid damage to your speakers and other parts of your system, when you turn on your system, ALWAYS turn the power amp on last! This will avoid loud, damaging pops that will annoy your audience, and blow your speakers. When you power down, the amplifier should ALWAYS be turned off first to avoid the same problems. • Always turn the power switches of system components OFF prior to connecting or disconnecting cables. Failure to do so may result in damage to speakers as well as to connected equipment. • Do not output distorted sounds for long periods of time, as this will cause the speaker to heat up, leading to a fire hazard. 2