Refurbished

*A factory repack with a full warranty. Product may have minor flaws or cosmetic imperfections.

The SRM450 active sound reinforcement monitor brings truckloads of power to any event, eliminating the need for external amplification and costly electronics (such as processors). In fact, this new Mackie loudspeaker -- the first in a series of speakers developed with RCF, who has fifty years of speaker experience -- uses technology and features found in systems costing thousands of dollars.

MPN: SRM450

Ultra-wide audience coverage
Multi-cell high-dispersion horn
Damped titanium HF transducer
FR™ power built-in - 400 watts RMS actual power delivered to internal transducers
Built-in Electronic Equalization, phase alignment, time compensation, and protection circuitry
Easy to carry - three balanced, ergonomic handles
Easy to set up - pole mountable + multiple fly points
Makes a super floor monitor, too

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 55Hz - 20,000Hz
Low-Freq -3 dB Point 55Hz
Maximum SPL @ 1m 127 dB
Low-Freq Crossover 24 dB/octave, time offset corrected
High-Freq Crossover 24 dB/octave
Crossover Frequency 1600Hz
Driver Protection Independent LF and HF compressors
Low-Freq Roll-Off Dynamic-signal level dependent
Accessory Interface ±15V DC, normalized signal I/O
Operating Temperature Range -10°C to 45° C
(14°F to 113°F)


Transducer

Low-Frequency Transducer:
Diameter 300mm (12")
Voice Coil Diameter 63.5mm (2.5")
Sensitivity (1W@1m) 98 dB
Nominal Impedance 8 ohms
Power Handling 300 watts
Frequency Range 55Hz - 3000Hz

Hi-Frequency Driver and Horn:
Diaphragm Diameter 44.5mm (1.75")
Exit Throat Diameter 24.5mm (1")
Diaphragm Material Titanium
Sensitivity (1W@1m) 106 dB
Nominal Impedance 8 ohms
Power Handling 100 watts
Frequency Range 1000Hz - 20,000Hz
Horn Type Composite: Exponential and Conical
Mouth Size 304.8mm (12") W x 177.8mm (7") H
Horizontal Coverage 90° ±10°
(1kHz - 20kHz)
Vertical Coverage 45° ±10°
(2.8kHz - 20kHz)



Power Amplifier and System

Low-Frequency Power Amplifier:
Rated Power 300 watts
Rated THD < 0.03%
Cooling Convection Extrusion
Design Class G, Parametric Servo Feedback

High-frequency amplifier:
Rated Power 100 watts
Rated THD < 0.03%
Cooling Convection Extrusion
Design Conventional Class AB


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


EOY