9
SA1521 SPECIFICATIONS
System Specifications
Frequency Range (–10 dB):
49 Hz–20 kHz
Frequency Response (–3 dB):
57 Hz–18 kHz
Horz. Coverage Angle (–6 dB):
75° averaged 1 kHz to 6 kHz
Vert. Coverage Angle (–6 dB):
65° averaged 1 kHz to 6 kHz
Sensitivity (1W@1m):
100 dB
Maximum SPL Long-term:
130 dB @ 1m
Maximum SPL Peak:
133 dB @ 1m
Crossover Point:
1300 Hz
Transducers
Low Frequency
Diameter: 15 in/381mm
High Frequency
Diaphragm Diameter: 1.75 in/44mm
Diaphragm Material: Titanium
Exit Throat: 1.00 in/28.4mm
Horn
Type: Constant Directivity
Mouth Size: 10.6˝ x 10.6˝
(27 x 27 cm)
Throat Size: 1.0˝ (2.54 cm)
Volume Control
Rotating Knob: –15 to +5 dB
(0 dB detent)
Amplifiers
Low Frequency:
Rated Output*: 400 watts RMS
continuous
Rated THD: <0.03%
Design: Class G, High Efficiency/
High Current
*Rated power is continuous RMS wattage into the transducer’s
rated impedance using a 100Hz sine wave.
High Frequency:
Rated Output*: 100 watts RMS
continuous
Rated THD: <0.03%
Design: Class AB
*Rated power is into the transducer’s rated impedance using a
1kHz sine wave signal.
Audio Input/Output
Main Input, Loop Out: 50kΩ impedance,
balanced
Connector Type: XLR
Line Input Power
US : 120V, 60 Hz
Recommended Amperage Service: 13 amps
AC Connector: 3 pin IEC- Male
Europe: 230V, 50 Hz
Recommended Amperage Service: 7 amps
AC Connector: 3 pin IEC-Male
Control System Functions
Electronic Crossover
Phase Alignment
Time Correction
Equalization
Electronic System protection
Thermal Overload protection
Independent High- and Low-Frequency Driver
protection
Indicator LEDs
Power On: Green LED
Signal Present: Green LED
Limit: Yellow LED
Thermal: Red LED
Safety Features
RMS Limiting:
Monitoring and limiting of continuous
RMS output of amplifiers
Thermal:
Monitoring of thermal condition of
power supply and amplifiers. High
temperature condition engages input-
stage shut down and autoreset function.
Physical
Enclosure:
Trapezoidal, 10° side angles, 18mm
multi-layered plywood, top and bottom
high-pressure resin injected “caps”
Handles:
One on top, one on bottom cap; one
three-piece handle on each side
Color:
Black, PVC coated finish
Grille:
Custom perforated oval steel grille with
anti-corrosive treatment
Mounting Methods:
Floor mount only—not suitable for flying
Pole-mountable via built-in socket on bottom
Dimensions
Height: 32.0 in/81.3 cm
Front Width: 19.1 in/48.5 cm
Rear Width: 13.9 in/35.3 cm
Depth: 18.1 in/46.0 cm
Net Weight: 101.0 lb/45.8 kg
Disclaimer
Since we are always striving to make our prod-
ucts better by incorporating new and improved
materials, components, and manufacturing meth
ods, we reserve the right to change these specifica-
tions at any time without notice.
“Mackie.” and the “Running Man” figure are
registered trademarks of LOUD Technologies Inc.
All other brand names mentioned are trade-
marks or registered trademarks of their respective
holders, and are hereby acknowledged.
©2003 LOUD Technologies Inc.
All Rights Reserved.
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