Mackie SA1521 Specifications - Active Speaker System
Active Speaker System
SA1521
SPEAKER
SA1521
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Active Speaker System
SA1521
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O F 6 P A G E S
Active Speaker System
SA1521
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Horn Design
Horizontal Coverage
75° 1kHz to 6kHz avg.
Vertical Coverage
65° 1kHz to 6kHz avg.
Type
Constant Directivity
Mouth Size
10.6" x 10.6"
(27 x 27cm)
Throat size
1.0" (2.54 cm)
Low Frequency Section
Number of Drivers
1
Woofer Size
15"
Diaphragm Material
Epoxy-reinforced
Cellulose
Magnet Type
Ferrite
Construction Features
Basic Design
Trapezoidal
Material
13-ply Baltic birch/ resin end caps
Finish
Wear-resistant black PVC vinyl
Handles
Two on sides, One top, One bottom
Grille
Perforated metal with weather-
resistant coating
Line Input Power
Power Consumption
190W long term with IEC
pink noise and limiter on
US
120 VAC, 60Hz
Recommended amperage service
13 Amps
Europe
230 VAC, 50Hz
Recommended amperage service
7 Amps
AC connector
3-pin IEC 250 VAC
Control System Function
Electronic Crossover
Phase Alignment
Time Correction
Equalization
Parametric equalization
Safety Features
Protection
Low Frequency Dynamic Bass
Protection, RMS Limiting, Power
Supply and Amplifier Thermal
Protection
Display LEDs
Signal Present, Limit, Power ON, and
Thermal (Cool Down Auto Reset)
Physical
Height
32.0 in/81.3 cm
Width Front
19.1 in/48.5 cm
Width Back
13.9 in/35.3 cm
Depth
18.1 in/46.0 cm
Weight
101.0 lb/45.8 kg
SA1521 Specifications
System Acoustic
–3dB response 57Hz-18kHz
–10dB response 49Hz-20kHz
Directivity Factor; Q (DI) 14.4 (11.6), averaged
2kHz to 10kHz
System Sensitivity
1
100 dB, 1W@1m
Max SPL long-term 130 dB
Max SPL Peak 133 dB
Crossover Linkwitz-Riley, 24 dB/octave @ 1300Hz
Input /Output
Input Bal./unbal. Female XLR
Loop-through (parallel w/input) Bal./unbal. Male XLR
Level Control Rotating knob (–15 to +5 dB),
center detent @ 0 dB
Amplifiers
Total Amplifier Power 500 watts Continuous*
High Frequency 100 watts*
Type Class AB
Rated THD .03%
Low Frequency 400 watts*
Type Class G Hybrid
Rated THD 0.03%
*Rated power is continuous RMS wattage into transducer’s
rated impedance @ 1kHz for the HF amplifier and @ 100Hz for
the LF amplifier
High Frequency Section
Diaphragm Size
1.75"
Horn Exit Diameter
1.0"
Phase Plug
3-Slot Optimized
Geometry
Diaphragm Material
Damped titanium
Magnet Type
Ferrite
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.
The SA1521 cabinet is constructed using both multi-
layered plywood and pressure injected structural resin. The
combination provides a robust enclosure with useful ergo-
nomic features. There are three-part cast aluminum handles
on each side of the enclosure placed at the speaker’s center
of gravity for easy carrying and setup. Handles are also locat-
ed on the top and bottom of the cabinet for easy movement
and relocation. A built-in pole-mount cup is provided on
the bottom, and a full-size, oval punched, weather-resistant
steel grille protects the front of the cabinet.
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