Active Speaker System; Srm450 Specifications - Mackie SRM450 Brochure

SRM450

SRM450 Specifications

System Acoustic
Frequency Response (–3 dB)
Frequency Range (–10 dB)
Directivity Factor; Q (DI)
Max SPL Long-term
Max SPL Peak
Crossover Linkwitz-Riley, 24 dB/octave @ 1600 Hz
Audio
Input
Loop-through (parallel w/input)
Input Protection
Level Control
Sensitivity (center detent)
Maximum Input Level
Low-Cut Frequency
Acoustic Contour Equalization (peaking)
Accessory Interface ±15 VDC, normalized signal I/O
Operating Temperature Range
Amplifiers
Total Amplifier Power
High Frequency
Type
Rated THD
Low Frequency
Type Class G with parametric servo feedback
Rated THD
*Rated power is continuous rms wattage into transducer's rated impedance @ 1 kHz for
the HF amplifier and @ 100 Hz for the LF amplifier
High Frequency Section
Diaphragm Size
Horn Exit Diameter
Power Handling
Sensitivity
Frequency Range
Nominal Impedance
Diaphragm Material
Magnet Type
Horn Design
Horizontal Coverage
Vertical Coverage
Type
Mouth Size
Throat size
1 Measured on-axis in the far field, referenced back to 1 watt rms from maxi-
mum power and to 1 meter distance using the inverse square law.

Active Speaker System

55 Hz-18 kHz
45 Hz-20 kHz
9.95 (9.98), averaged
2 kHz to 10 kHz
124 dB
127 dB
Bal./unbal. Female XLR
Bal./unbal. Male XLR
RFI and level protected
Rotating knob (off to +40 dB)
Line: +4 dBu
Mic: –36 dBu
+22 dBu
75 Hz
second-order high-pass filter
+3 dB @ 100 Hz
+3 dB @ 12 kHz
–10°C to 45°C
(14°F to 113°F)
400 watts continuous*
100 watts*
Class AB
.03%
300 watts*
0.03%
1.75 in/44.5 mm
1.0 in/24.5 mm
100 watts rms (long term)
106 dB (1W@1m)
1000 Hz to 20 kHz
8 ohms
Damped titanium
Ferrite
90° 1 kHz to 20 kHz avg.
45° 2.8 kHz to 20 kHz avg.
Exponential and conical
12.0 in x 7.0 in/
30.5 cm x 17.8 cm
1.0 in/2.5 cm
Low Frequency Section
Number of Drivers
Woofer Diameter
Voice Coil Diameter
Power Handling
Sensitivity
Frequency Range
Magnet Type
Construction Features
Basic Design
Material
Finish
Handles
Grille
Line Input Power
Power Consumption
US
Recommended amperage service
Europe
Recommended amperage service
Japan
Recommended amperage service
AC connector
Control System Function
Electronic Crossover
Phase Alignment
Equalization
Parametric equalization
Safety Features
Protection
Display LEDs
1
Physical
Height
Width Front
Depth
Weight
Options
PA-A1 Eyebolt (M10 x 1.5 mm x 20 mm)
1
12 in/300 mm
2.5 in/63 mm
450 watts rms (long term)
98 dB (1W@1m)
45 Hz to 3000 Hz
Ferrite
Asymmetrical Trapezoidal
Polypropylene
Grey, textured finish
Two on sides, one on top
Perforated metal with weather-
resistant coating
320W with musical program
and Peak LED blinking
120 VAC, 60Hz
2.5 amps
230 VAC, 50Hz
1.25 amps
100 VAC, 50/60Hz
3.0 amps
3-pin IEC 250 VAC
Low Frequency Dynamic Bass
Protection, Independent LF and HF
Compressors, Power Supply and
Amplifier Thermal Protection
Signal Present, Peak, Power ON, and
Thermal (Cool Down Auto Reset)
26.0 in/660 mm
15.4 in/390 mm
14.8 in/376 mm
51.0 lb/23.2 kg
2
O F 6 P A G E S
o F 6 PA G E S
1