Specifications - Mackie SRM450 User's Manual And Warranty Registration

SPECIFICATIONS

Transducer Specifications
Low-Frequency Transducer
Diameter 300mm (12")
Voice Coil Diameter 63.5mm (2.5")
Sensitivity (1W@1m) 98 dB
Nominal Impedance 8 ohms
Power Handling 450 watts, program
Frequency Range 45Hz – 3kHz
High-Frequency Driver and Horn
Diaphragm Diameter 44.5mm (1.75˝)
Exit Throat Diameter 25.4mm (1˝)
Diaphragm Material Titanium
Sensitivity (1W@1m) 106 dB
Nominal Impedance 8 ohms
Power Handling 150 watts, program
Frequency Range 1kHz – 20kHz
Horn Type
Composite: Conical/Exponential
Mouth Size
304.8mm (12˝) W x 177.8mm (7˝) H
Horizontal Coverage
90º ± 10º (1kHz – 20kHz)
Vertical Coverage
45º ± 10º (2.8kHz – 20kHz)
Power Amplifier and System
Specifications
Low-Frequency Power Amplifier
Rated Power 300 watts
Rated THD < 0.1%
Cooling Convection Extrusion
Design Class G, Parametric Servo Feedback
High-Frequency Power Amplifier
Rated Power 100 watts
Rated THD < 0.1%
Cooling Convection Extrusion
Design Conventional Class AB
System Specifications
Input Type Balanced Differential
Input Impedance
Line: 20k ohms
Input Protection RFI and level protected
Sensitivity
Line: +4 dBu (center detent)
Mic: –36 dBu
Maximum Input Level
Line: +22 dBu
Low-Cut Frequency
75Hz, Second-order filter
Acoustic Contour Equalization
Peaking: +3 dB @ 100Hz,
+3 dB @ 12kHz
Enclosure Alignment Sixth-Order
Over-Excursion Protection
Second-Order High-Pass Filter
Thermal Protection Amplifier shutdown,
auto-reset
Low-Line Voltage Shut Down
60% Nominal line
Acoustic Frequency Response
48Hz – 20kHz
Low-Freq –3 dB Point 55Hz
Max Peak SPL @ 1m 127 dB
Low-Freq Crossover 24 dB/octave,
time offset corrected
High-Freq Crossover 24 dB/octave
Crossover Frequency 1.6 kHz
Driver Protection Independent LF and
HF compressors
Low-Freq Roll-Off Dynamic-signal level
dependent
± 15V DC,
Accessory Interface
normalized signal I/O
Operating Temperature Range
–10ºC - 45ºC
(14ºF - 113ºF)
Line Input Power
US 120V, 60Hz
Europe 230V, 50Hz
Japan 100V, 50/60Hz
Physical Properties
Height 660mm (25.98")
Width 390mm (15.35")
Depth 376mm (14.8")
Weight 23.2kg (51 lbs.)
Enclosure Geometry
Asymmetrical Trapezoidal
Mounting Methods
Integrated mounting
points, M10
Two each located on each
side, top, bottom, and rear
of enclosure
Disclaimer
Since we are always striving to
make our products better by incor-
porating new and improved
materials, components, and manu-
facturing methods, we reserve the
right to change these specifications
at any time without notice.
"Mackie," the "Running Man" figure, and
"FR Series" are trademarks or registered trademarks
of Mackie Designs Inc.
All other brand names mentioned are trade-
marks or registered trademarks of their respective
holders, and are hereby acknowledged.
©2000 Mackie Designs Inc.
All Rights Reserved.
Printed in the U.S.A.
15.35"-390mm 14.8"-376mm
15.35"-390mm
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