Yamaha F25 사용자 설명서

 

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When choosing a location for your speakers, avoid the 
following:

• Direct sunlight, high temperatures (such as near heat-

ers), or excessively low temperatures.

• High humidity.

• Areas subject to excessive dust accumulation and 

vibration.

• Non-level or unstable surfaces.

 

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, dam-
aging 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. Fail-
ure to do so may result in damage to speakers as well as 
to connected equipment.

 

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 connec-
tors to those at the amplifier. If the polarities do not 
match, the sounds produced by the speakers will inter-
fere with each other, making it impossible to achieve a 
well-balanced sound field.

 

The handles on your speakers are for transportation. 
The F12M/F25/F28 models are not designed for sus-
pension or hanging. Only the F12/F15 models are 
designed for suspension. Please consult a qualified 
engineer for proper hanging techniques.

 

 

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When choosing a power amplifier to use with your 
speakers, make sure that its power output matches the 
speakers’ power capacity (refer to the “Specifica-
tions” on page 5). Even if the amplifier’s power out-
put 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 distorted signals.

• Popping noises caused by turning on equipment, or 

by connecting or disconnecting system components 
while the amplifier is turned on.

This product, when used in combination 
with amplification and/or additional 
loudspeakers, may be capable of produc-
ing sound levels that could cause perma-
nent hearing loss.

DO NOT operate at high volume levels or 
at a level that is uncomfortable. If you 
experience any discomfort or ringing in 
the ears, or suspect an hearing loss, you 
should consult an audiologist.