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Lend Me Your Ears
Exposure to extremely
high noise levels may cause
permanent hearing loss. In-
dividuals vary considerably
in susceptibility to noise-
induced hearing loss, but nearly everyone
will lose some hearing if exposed to suffi-
ciently intense noise for a period of time.
The U.S. Government’s Occupational
Safety and Health Administration (OSHA)
has specified the permissible noise level ex-
posures shown in this chart.
According to OSHA, any exposure in ex-
cess of these permissible limits could result
in some hearing loss. To ensure against po-
tentially dangerous exposure to high
sound-pressure levels, it is recommended
that all persons exposed to equipment ca-
pable of producing these levels use hearing
protectors while this unit is in operation.
Ear plugs or protectors in the ear canals or
over the ears must be worn when operating
this amplification system in order to pre-
vent a permanent hearing loss if exposure is
in excess of the limits set forth here.
Contents
SAFETY INSTRUCTIONS .............................................................................................................2
INTRODUCTION ...........................................................................................................................4
REAR PANEL DESCRIPTION ........................................................................................................5
HOOKUP DIAGRAM .....................................................................................................................5
CONNECTIONS ............................................................................................................................6
PLACEMENT .................................................................................................................................6
AC POWER ...................................................................................................................................7
THERMAL CONSIDERATIONS .....................................................................................................8
SERVICE INFORMATION .............................................................................................................9
Warranty Service .............................................................................................................9
Troubleshooting ...............................................................................................................9
Repair ............................................................................................................................10
CARE AND MAINTENANCE .......................................................................................................10
SA1232 SPECIFICATIONS .........................................................................................................11
Architects and Engineers’ Specifications ......................................................................12
Graphs ...........................................................................................................................13
SA1232 LIMITED WARRANTY ...................................................................................................15
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for more information about this and other Mackie products.
Duration Per Day Sound Level dBA, Typical
In Hours Slow Response Example
8 90 Duo in small club
692
4 95 Subway Train
397
2 100 Very loud classical music
1.5 102
1 105 Patrice screaming at Ron about deadlines
0.5 110
0.25 or less 115 Loudest parts at a rock concert
The SA1232
can produce a
maximum SPL of
136 dB @ 1m
Part No. 0000431 Rev. B 4/03
© 2003 Mackie Designs Inc. All Rights Reserved.