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3
• 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 18). 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.
• 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.
Yamaha cannot be held responsible for damage caused by improper use or modifications to the device.
Connections
Handling caution
Special Notice
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