Blackstar Amplification HT-5C Manuel Du Propriétaire page 6

If the product does not operate normally when the operating instructions are
followed, then refer the product to a qualified service engineer.
The U.S. Government's Occupational Safety and Health Administration (OSHA) has
specified the following permissible noise level exposures:
Duration Per Day In Hours
8
6
4
3
2
1½
1
½
¼ or less
According to OSHA, any exposure in excess of the above permissible limits could
result in some hearing loss.
Ear plug protectors in the ear canals or over the ears must be worn when operating
this amplification system in order to prevent a permanent hearing loss if exposure is
in excess of the limits as set forth above. To ensure against potentially dangerous
exposure to high sound pressure levels, it is recommended that all persons
exposed to equipment capable of producing high sound pressure levels such as
this amplification system be protected by hearing protectors while this unit is in
operation.
All electrical and electronic products should be disposed of separately from
the municipal waste stream via designated collection facilities appointed by
the government or the local authorities.
Sound Level dBA, Slow Response
90
92
95
97
100
102
105
110
115
N2930
5