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Mackie SA1521 User Manual: Table Of Contents

2-way active speaker system.
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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.
Duration Per Day Sound Level dBA, Typical
In Hours
8
6
4
3
2
1.5
1
0.5
0.25 or less
Contents
SAFETY INSTRUCTIONS .............................................................................................................2
INTRODUCTION ...........................................................................................................................4
REAR PANEL DESCRIPTION ........................................................................................................4
HOOKUP DIAGRAM .....................................................................................................................5
CONNECTIONS ............................................................................................................................5
PLACEMENT.................................................................................................................................6
AC POWER ...................................................................................................................................6
THERMAL CONSIDERATIONS .....................................................................................................6
SERVICE INFORMATION .............................................................................................................7
Warranty Service ....................................................................................................... 7
Troubleshooting .......................................................................................................... 7
Repair ....................................................................................................................... 8
CARE AND MAINTENANCE .........................................................................................................8
SA1521 SPECIFICATIONS ...........................................................................................................9
Architects and Engineers' Specifications ..................................................................... 10
FREQUENCY RESPONSE GRAPH ..............................................................................................10
SA1521 LIMITED WARRANTY ...................................................................................................11
for more information about this and other Mackie products.
Part No. 820-262-00 Rev. C 11/03
© 2003 LOUD Technologies Inc. All Rights Reserved.
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.
Slow Response
Example
90
Duo in small club
92
95
Subway Train
97
100
Very loud classical music
102
105
Tami screaming at Adrian about deadlines
110
115
Loudest parts at a rock concert
Don't forget to visit our website at
According to OSHA, any exposure in ex-
www.mackie.com
The SA1521
can produce a
maximum SPL of
133 dB @ 1m
3

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