Table Of Contents - Mackie SRM450 User Manual

Lend Me Your Ears
Exposure to extremely
high noise levels may
cause permanent hear-
ing loss. Individuals vary
considerably in susceptibility to noise-in-
duced hearing loss, but nearly everyone will
lose some hearing if exposed to sufficiently
intense noise for a period of time. The U.S.
Government's Occupational Safety and
Health Administration (OSHA) has speci-
fied the permissible noise level exposures
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
INTRODUCTION ....................................................... 4
HOOKUP DIAGRAMS ............................................... 6
Quick Start ........................................................ 6
REAR PANEL DESCRIPTION
IEC Socket .................................................. 8
POWER Switch ............................................ 8
POWER ON Indicator
TIMED TURNOFF ......................................... 8
THERMAL Indicator
CONTOUR .................................................. 9
LOW CUT .................................................... 9
LEVEL ......................................................... 9
SIGNAL PRESENT Indicator
PEAK Indicator ............................................ 9
INPUT Connector ........................................ 9
THRU Connector ......................................... 9
ACCESSORY Plate
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Part No. 820-158-90 Rev. A 10/03
©2003 LOUD Technologies Inc. All Rights Reserved.
excess of these permissible limits could
result in some hearing loss. To ensure
against potentially dangerous exposure to
high sound-pressure levels, it is recommend-
ed that all persons exposed to equipment
capable 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 prevent
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
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According to OSHA, any exposure in
CONNECTIONS ...................................................... 10
PLACEMENT .......................................................... 10
RIGGING ................................................................ 11
THERMAL CONSIDERATIONS
AC POWER CONSIDERATIONS
SERVICE INFORMATION
Warranty Service ............................................. 14
Troubleshooting ............................................... 14
Repair ............................................................. 16
CARE AND MAINTENANCE
SRM450 SPECIFICATIONS
SRM450 BLOCK DIAGRAM
SRM450 LIMITED WARRANTY
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The SRM450
can produce a
maximum SPL
of 127 dB @ 1m.
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