Mackie SRM450v2 Specifications

2/6 PAGES
SRM450v2
PRECISION ACTIVE
LOUDSPEAKER
SRM450v2 SPECIFICATIONS
Acoustic Performance
Frequency Response (–3 dB) 55 Hz - 18 kHz
Frequency Range (–10 dB) 45 Hz - 20 kHz
Directivity Factor; Q (DI) 9.95 (9.98), averaged
2 kHz to 10 kHz
Max SPL long-term 124 dB @ 1 m
Max SPL peak 127 dB @ 1 m
Crossover Point Linkwitz-Riley, 24 dB/octave @ 1600 Hz
Input / Output
Input / Thru Type Balanced Differential
Input Impedance 20 k
Input Protection RFI and level protected
Sensitivity
Line +4 dBu (center detent)
Mic –36 dBu
Maximum Input Level +22 dBu
Low-Cut Frequency 75 Hz, Second-order filter
Acoustic Contour Equalization (Peaking) +3 dB @ 100 Hz,
+3 dB @ 12 kHz
Low-Frequency Power Amplier
Rated Power 300 watts rms*
Rated THD < 0.1%
Cooling Convection Extrusion
Design Class D, Parametric Servo Feedback
High-Frequency Power Amplier
Rated Power 100 watts rms*
Rated THD < 0.1%
Cooling Convection Extrusion
Design Conventional Class AB
*Rated power is continuous rms wattage into transducer’s
rated impedance @ 5kHz for the HF amplifier and @ 500Hz
for the LF amplifier.
Low-Frequency Transducer
Diameter 12 in / 305 mm
Voice Coil Diameter 3 in / 76 mm
Magnet Material Neodymium
High-Frequency Transducer
Diaphragm Diameter 1.75 in / 44 mm
Diaphragm Material Heat treated titanium
Horn Design
Type Conical and Exponential
Mouth Size 12 in / 305 mm (W) x 7 in / 178 mm (H)
Throat Diameter 1 in / 25 mm
Horizontal Coverage 90º (1 kHz - 20 kHz)
Vertical Coverage 45º (2.8 kHz - 20 kHz)
Line Input Power
US, JP 100 - 120 VAC, 50 - 60 Hz
EU, UK, AU, CN 200 - 240 VAC, 50 - 60 Hz
AC Connector 3-pin IEC 250 VAC
Power Consumption 300 watts
Control System Function
Electronic Crossover, Phase Alignment, Equalization, Parametric EQ
Safety Features
Over-Excursion Protection Second-Order High-Pass Filter
Thermal Protection Amplifier shutdown, auto-reset
Low-Line Voltage Shut Down 60% Nominal line
Driver Protection Independent LF and HF compressors
Low-Freq Roll-Off Dynamic, signal-level dependent
Construction Features
Basic Design Asymmetrical Trapezoidal
Enclosure Alignment Sixth-Order
Material Polypropylene
Finish Black, textured finish
Handles One on each side, one on top
Grille Perforated metal with weather-resistant coating
Display LEDs Signal Present, Peak, Power ON, and Thermal
Operating Temperature –10ºC - 45ºC
14ºF - 113ºF
Physical Properties (packaged product)
Height 26.5 in / 673 mm
Width 16.8 in / 427 mm
Depth 15.5 in / 394 mm
Shipping Weight 46.0 lb / 20.9 kg
Physical Properties (product)
Height 26.1 in / 663 mm
Width 16.0 in / 406 mm
Depth 14.8 in / 376 mm
Net Weight 40.0 lb / 18.1 kg
Mounting Methods
Floor mount, pole mount, or fly via 10 integrated M10 threaded
inserts (two each located on each side, top, bottom and rear of
enclosure)
Options
PA-A1 Forged Shoulder Eyebolt Kit P/N 0031943
SPM200 Loudspeaker Pole Mount P/N 2035170-01
Ordering Information
SRM450v2 12”2-way Compact SR Loudspeaker, US P/N 2033799-00
SRM450v2 12”2-way Compact SR Loudspeaker, EU P/N 2033799-01
SRM450v2 12”2-way Compact SR Loudspeaker, JP P/N 2033799-02
SRM450v2 12”2-way Compact SR Loudspeaker, UK P/N 2033799-03
SRM450v2 12”2-way Compact SR Loudspeaker, AU P/N 2033799-04
SRM450v2 12”2-way Compact SR Loudspeaker, CN P/N 2033799-05

Mackie SRM450v2 Specifications

General

Enclosure Material	Polypropylene
LF Driver	12 in
HF Driver	1.4"
Type	Active
Input Impedance	20 kOhms balanced, 10 kOhms unbalanced
Inputs	XLR, 1/4" TRS
Power Output	400W (200W LF, 200W HF)
Amplifier Power	400W total (200W LF, 200W HF)