Mackie HD1531 Owner's Manual - Page 12

HD1531 Appendix C: Technical Information HD1531 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 Points Equalization Contour EQ Low Shelving Mid-Peaking High Shelving High-Frequency Section Voice Coil Diameter Horn Entry Diameter Diaphragm Material Magnet Material Mid-Frequency Section Diameter Diaphragm Material Magnet Material 38 Hz-20 kHz 50 Hz-18 kHz 90 degrees averaged 2 kHz to 10 kHz 40 degrees averaged 2 kHz to 10 kHz 10.7 averaged 2 kHz to 10 kHz 11.9 averaged 2 kHz to 10 kHz 135 dB 126 dB 400 Hz, 1500 Hz Power Amplifiers Low Frequency Power Amplifier Rated Power Rated THD Design Mid Frequency Power Amplifier Rated Power Rated THD Design High Frequency Power Amplifier Rated Power Rated THD Design 700 watts rms 1400 watts peak < 0.03% Class D 100 watts rms each 200 watts peak < 0.03% Class D 100 watts rms each 200 watts peak < 0.03% Class D -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 Input/Output Input Type Input Impedance Loop Out Line Input Power US model Recommended Service European model Recommended Service AC Connector 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 6.0" / 152.4 mm Paper Ferrite Safety Features Input Protection: Display LEDs: RMS limiting, power supply and amplifier thermal protection Power ON, EQ ON, Sig / Limit, Thermal protection, Front Power ON Low-Frequency Section Woofer Diameter Voice Coil Diameter Diaphragm Material Magnet Material 15.0" / 381 mm 3.0" / 76.2 mm Paper Neodymium  Calculated from driver sensitivity and amplifier power.  Measured with pink noise, free field at 1 meter, before limiting. 12 HD1531 Construction Features Basic Design Trapezoidal, 20 degree included angle Material 15 mm exterior grade premium birch plywood Finish High durability black paint Handles One on each side Grille Powder-coated galvanized steel Fly Points Twelve M10 x 1.5 mm