Appendix C: Technical Information - Mackie HD1521 Owner's Manual

Appendix C: Technical Information
HD151 Specifications
Acoustic Performance:
Frequency Response (-10 dB)
Frequency Response (-3 dB)
Horizontal Coverage (-6 dB)
Vertical Coverage (-6 dB)
Directivity Index (dB)
Directivity Factor (Q)
Max peak SPL (calculated)
Max peak SPL (measured)
Crossover Point
Equalization
Contour EQ
Low Shelving
Mid-Peaking
High Shelving
High-Frequency Section
Voice Coil Diameter
Horn Entry Diameter
Diaphragm Material
Magnet Material
Low-Frequency Section
Woofer Diameter
Voice Coil Diameter
Diaphragm Material
Magnet Material
1 Calculated from driver sensitivity and amplifier power.
2 Measured with pink noise, free field at 1 meter, before limiting.
1
HD151
40 Hz-20 kHz
50 Hz-18 kHz
80 degrees averaged
2 kHz to 10 kHz
50 degrees averaged
2 kHz to 10 kHz
11.4 averaged
2 kHz to 10 kHz
14.0 averaged
2 kHz to 10 kHz
135 dB
1
125 dB
2
1200 Hz
-3 dB to +3 dB
80 Hz, 6 dB / octave
-3 dB to +3 dB
100 Hz to 8 kHz, Q=1.5
-3 dB to +3 dB
12 kHz, 6 dB / octave
1.75" / 44.5 mm
1.0" / 25 mm
Heat-treated titanium
Ferrite
15.0" / 381 mm
3.0" / 76.2 mm
Paper
Neodymium
Power Amplifiers
Low Frequency Power Amplifier
Rated Power
Rated THD
Design
High Frequency Power Amplifier
Rated Power
Rated THD
Design
Input/Output
Input Type
Input Impedance
Loop Out
Line Input Power
US model
Recommended Service
European model
Recommended Service
AC Connector
Safety Features
Input Protection:
Display LEDs:
Construction Features
Basic Design
Cabinet
Finish
Handles
Grille
Fly Points
700 watts rms
1400 watts peak
< 0.03%
Class D
100 watts rms
200 watts peak
< 0.03%
Class D
Female XLR balanced
11 kohm balanced
Male XLR balanced
120 VAC, 60 Hz
9 amps
230 VAC, 50 Hz
5 amps
3-pin IEC 250 VAC
RMS limiting, power supply and
amplifier thermal protection
Power ON, EQ ON, Sig/Limit,
Thermal protection, Front Power
ON
Trapezoidal, 20 degree included
angle
15 mm exterior grade premium
birch plywood
High durability black paint
One on each side
Powder-coated galvanized steel
Twelve M10 x 1.5 mm