Goodmans 4225MP3, Инструкция по эксплуатации

Страница: 4 / 17

- 3 -
Hearing is very important to you and to us so please take care when operating this equipment. It is
strongly recommended that you follow the listed guidelines in order to prevent possible damage or loss
of hearing.
Over time your hearing will adapt to continuous loud sounds and will give the impression that the
volume has in fact been reduced. What seems normal to you may in fact be harmful. To guard against
this
set the volume at a low level.
Slowly increase the level until you can hear comfortably and clearly and without distortion.
Damage to your hearing is accumulative and is irreversible.
Any ringing or discomfort in the ears indicates that the volume is too loud.
Remember listening for prolonged period of time at high volume levels will harm your hearing.
The following list of typical sound levels may assist you in recognising just how loud you have set the
volume level.
DECIBEL
Level (dB)
Example
30dB Quiet library, soft whisper.
40 Living room, fridge, freezer, bedroom away from traffic.
50 Normal conversation, quiet office, light traffic.
60 Electric sewing machine.
70 Vacuum cleaner, hair dryer, noisy restaurant.
80dB Average city traffic, alarm clock buzzer at 2 feet, food mixer.
90dB Motorcycle, heavy goods vehicle, petrol lawn mower.
100 Pneumatic drill, chain saw, garbage truck, discotheque / night-club.
120 Rock band concert, thunderclap, fast train passing by.
140 Gunshot 2 feet away, jet plane taking off.
180 Rocket Launching pad.
ESTABLISH A SAFE SOUND LEVEL
BEFORE YOUR HEARING ADAPTS
Once you have established a comfortable listening level, DO NOT INCREASE THE SOUND
LEVEL FURTHER.
THE FOLLOWING NOISE CAN BE HARMFUL UNDER CONSTANT EXPOSURE
PERMANENT LOSS OF HEARING
THRESHOLD OF PAIN
IMPORTANT NOTES