Pioneer VSX-605S Panduan Petunjuk Pengoperasian - Halaman 36
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To establish a safe level:
MAINTENANCE OF EXTERNAL SURFACES
Decibel
Level
Example
30
Quiet Hbrary, soft whispers
40
Livingroom, 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
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.
Published by Pioneer Etectronic Corporation,
Copyright © 1995 Pioneer Electranic Corporation
All sights reserved
300 Allstate Parkway, Markham, Ontario LSR 0P2, Canada
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