3
Warnings
QM-1000 manual
Warning
, constant exposure to high ambient
sound pressure levels will cause hearing damage.
Exposure to extremely high noise levels over
long periods of time will cause permanent
hearing loss.
Many countries have Government occupational
safety authorities and the following noise table
is a commonly agreed standard of permissible
noise level exposures a worker can be subjected
to without suffering great hearing loss.
duration Per day (Hrs)
Sound level dB
(A weighted scale)
8
90
6
92
4
95
3
97
2
100
1
½
102
1
105
½
110
¼ or less
115
Any exposure in excess of the above permissible
limits could result in some hearing loss.
You will notice a rapid increase in hearing
damage above 103dB. Apart from the sound
pressure level of the sound system, you have
the added effect of people yelling into your
ear to he heard over the volume of the sound
system. Hearing damage can not be reversed so
limit the time you are in loud environments or
buy ear plugs.
Be protected by hearing protection such as ear
plugs. In the case of audio mixing personnel,
remove the plugs when you are mixing and
replace them if you are between music sets.
This will lower your exposure time to high SPL.
Safety precautions
Quest Engineering strongly advise
unless you possess skill in the proper
use of hand and power tools and
have a thorough understanding of
local building and fire codes, then the
installation of this speaker should
be carried out by suitably qualified
personnel following locally authorised
and approved safety standards. A
familiarity with the area behind the
wall or ceiling where you plan to
install the speakers is extremely
important. Improper installation can
cause serious injury or death. If in
doubt contact your Quest Engineering
dealer or a professional installation
technician.
Installation allowing direct precipitation
is not advised and installation practise
must prevent liquids from entering the
speaker enclosure.
Do not place sources of heat on the
speaker cabinet such as lighting
equipment or smoke machines, and
where possible please keep out of
direct sunlight.
Attention
Before connecting or operating your
new Quest Engineering speaker, please
study the accompanying instruction
manual paying particular attention to
the operating precautions and wiring
procedure.
Quest Engineering will not assume
responsibility for incorrect installation
or operation of this product.
