SRM450
Mackie
SRM450
Mackie SRM450 Speaker
This portable, active 2-way loudspeaker features onboard bi-amplification, active crossovers, time-correction and renowned Mackie sound quality. It delivers real, accurate bass down to 55Hz, midrange that's free from ear-fatiguing harshness, and detailed treble out to 20kHz.
Better still, the SRM450 offers astonishingly wide dispersion that lets your whole audience hear clearly, whether they're in the front, back, or way out on the sides of the room, and all without a hint of distortion.
Better still, the SRM450 offers astonishingly wide dispersion that lets your whole audience hear clearly, whether they're in the front, back, or way out on the sides of the room, and all without a hint of distortion.
Technical Tools
PDF Documents
- Manufacturer Data Sheet - Mackie - SRM450 (589 KB)
- Product Manual - Mackie - SRM450 (589 KB)
- Mackie Active Speakers Hook-up Guide (589 KB)
Manufacturer Specs
System
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
Frequency Range (-10 dB): 45Hz - 20KHz
Frequency Response (±3 dB): 55Hz - 18kHz
Maximum Peak SPL @ 1m: 127 dB
Low-Frequency Crossover: 24 dB/octave, time offset corrected
High-Frequency Crossover: 24 dB/octave
Crossover Frequency: 1.6kHz
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: 14°F to 113°F
Transducer
Low-Frequency Transducer
Diameter: 300mm (12")
Power Handling: 450 watts RMS
Frequency Range: 45Hz - 3kHz
Hi-Frequency Driver and Horn
Diaphragm Diameter: 44mm (1.75")
Exit Throat Diameter: 25mm (1")
Diaphragm Material: Titanium
Sensitivity (1W at 1m): 106 dB
Power Handling: 100 Wrms
Frequency Range: 1kHz - 20kHz
Horn Type
Composite: Exponential and Conical
Mouth Size: 12"W x 7"H
Horn Coverage
Horizontal: 90°
Vertical: 45°
Power Amplifier and System
Low-Frequency Power Amplifier
Rated Power: 300 Wrms
Rated THD: < 0.1%
Cooling: Convection Extrusion
Design: Class G, Parametric Servo Feedback
High-frequency amplifier
Rated Power: 100 watts @ High-Frequency Driver Impedance
Rated THD: < 0.1%
Cooling: Convection Extrusion
Design: Conventional Class AB
Line Input Power
US: 120V, 60Hz
Europe: 230V, 50Hz
Enclosure Geometry: Asymmetrical Trapezoidal
Mounting Methods: Integrated mounting points, M10
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
Frequency Range (-10 dB): 45Hz - 20KHz
Frequency Response (±3 dB): 55Hz - 18kHz
Maximum Peak SPL @ 1m: 127 dB
Low-Frequency Crossover: 24 dB/octave, time offset corrected
High-Frequency Crossover: 24 dB/octave
Crossover Frequency: 1.6kHz
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: 14°F to 113°F
Transducer
Low-Frequency Transducer
Diameter: 300mm (12")
Power Handling: 450 watts RMS
Frequency Range: 45Hz - 3kHz
Hi-Frequency Driver and Horn
Diaphragm Diameter: 44mm (1.75")
Exit Throat Diameter: 25mm (1")
Diaphragm Material: Titanium
Sensitivity (1W at 1m): 106 dB
Power Handling: 100 Wrms
Frequency Range: 1kHz - 20kHz
Horn Type
Composite: Exponential and Conical
Mouth Size: 12"W x 7"H
Horn Coverage
Horizontal: 90°
Vertical: 45°
Power Amplifier and System
Low-Frequency Power Amplifier
Rated Power: 300 Wrms
Rated THD: < 0.1%
Cooling: Convection Extrusion
Design: Class G, Parametric Servo Feedback
High-frequency amplifier
Rated Power: 100 watts @ High-Frequency Driver Impedance
Rated THD: < 0.1%
Cooling: Convection Extrusion
Design: Conventional Class AB
Line Input Power
US: 120V, 60Hz
Europe: 230V, 50Hz
Enclosure Geometry: Asymmetrical Trapezoidal
Mounting Methods: Integrated mounting points, M10