Pioneer CDX-FM673 운영 매뉴얼 - 페이지 4
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Pioneer CDX-FM673에 대해서도 마찬가지입니다: 설치 매뉴얼 (4 페이지), 운영 매뉴얼 (36 페이지)
페이지 인쇄
Dear Customer
Selecting fine audio equipment such as the unit you've just
purchased is only the start of your musical enjoyment. Now it's time
to consider how you can maximize the fun and excitement your
equipment offers. This manufacturer and the Electronic Industries
Association's Consumer Electronics Group want you to get the most
out of your equipment by playing it at a safe level. One that lets the
sound come through loud and clear without annoying blaring or
distortion—and, most importantly, without affecting your sensitive
hearing.
Sound can be deceiving. Over time your hearing "comfort level"
adapts to higher volumes of sound. So what sounds "normal" can
actually be loud and harmful to your hearing. Guard against this by
setting your equipment at a safe level BEFORE your hearing adapts.
To establish a safe level:
• Start your volume control at a low setting.
• Slowly increase the sound until you can hear it comfortably and
clearly, and without distortion.
Once you have established a comfortable sound level:
• Set the dial and leave it there.
Taking a minute to do this now will help to prevent hearing damage or
loss in the future. After all, we want you listening for a lifetime.
4
We Want You Listening For A Lifetime
Used wisely, your new sound equipment will provide a lifetime of
fun and enjoyment. Since hearing damage from loud noise is often
undetectable until it is too late, this manufacturer and the Electronic
Industries Association's Consumer Electronics Group recommend
you avoid prolonged exposure to excessive noise. This list of sound
levels is included for your protection.
Decibel
Level Example
30
Quiet library, soft whispers
40
Living room, refrigerator, bedroom away from traffic
50
Light traffic, normal conversation, quiet office
60
Air conditioner at 20 feet, sewing machine
70
Vacuum cleaner, hair dryer, noisy restaurant
80
Average city traffic, garbage disposals, alarm clock at two feet.
THE FOLLOWING NOISES CAN BE DANGEROUS
UNDER CONSTANT EXPOSURE
90
Subway, motorcycle, truck traffic, lawn mower
100
Garbage truck, chain saw, pneumatic drill
120
Rock band concert in front of speakers, thunderclap
140
Gunshot blast, jet plane
180
Rocket launching pad
Information courtesy of the Deafness Research Foundation.