Marantz professional PMD-750 Guide D'utilisation page 4

Important Safety Precautions
Please note: Marantz Professional and inMusic are not responsible for the
use of its products or the misuse of this information for any purpose. Marantz
and inMusic are not responsible for the misuse of its products caused by
avoiding compliance with inspection and maintenance procedures. Please
also refer to the included safety and warranty manual for more information.
Sound Level
Permanent hearing loss may be caused by exposure to extremely high noise
levels. The U.S. Occupational Safety and Health Administration (OSHA) has
specified permissible exposures to certain noise levels. According to OSHA,
exposure to high sound pressure levels (SPL) in excess of these limits may
result in hearing loss. When using equipment capable of generating high
SPL, use hearing protection while such equipment is under operation.
Hours per day
8
6
4
3
2
1.5
1
0.50
0.25 or less
4
SPL (dB) Example
90 Small gig
92 Train
95 Subway train
97 High level desktop monitors
100 Classical music concert
102 Riveting machine
105 Machine factory
110 Airport
115 Rock concert