Pioneer Premier DEH-P740MP Operation Manual page 5

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.
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.
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