Yamaha IF2112M99 Посібник користувача - Сторінка 2

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PLEASE READ CAREFULLY BEFORE PROCEEDING

* Please keep this manual in a safe place for future reference.

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:

Location

• Always consult qualiﬁed Yamaha service personnel if the

device installation requires construction work, and make

sure to observe the following precautions.

- Choose mounting hardware and an installation location that

can support the weight of the device.

- Avoid locations that are exposed to constant vibration.

- Make sure to use the speciﬁed hardware.

- Inspect the device periodically.

• 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 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.

Connections

• 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 14), particularly when connecting speakers in parallel.

Connecting an impedance load outside the ampliﬁer's rated

range can damage the ampliﬁer.

PRECAUTIONS

Handling caution

• When choosing a power ampliﬁer to use with your speakers,

• When turning on the AC power in your audio system, always

• Do not operate this device at high volume levels or at a level

* Illustrations herein are for explanatory purposes only, and

may not match actual appearance during operation.

* Company names and product names herein are trademarks

or registered trademarks of their respective companies.

For details on signal processor settings when driving speakers

with the use of multiple power ampliﬁers, please refer to the

web site below.

Yamaha Pro Audio global web site

http://www.yamahaproaudio.com/

(6)-1

make sure that its power output matches the speakers'

power capacity (refer to the Speciﬁcations on page 14).

Even if the ampliﬁer's power output is lower than the

speakers' 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.

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.

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.