Mackie HD1531 15" 3-way High Definition Powered Loudspeaker

The HD1531 3-Way High-Definition Powered Loudspeaker delivers 1800W of peak system power via Class-D Fast Recovery™ amplification. Class-D amp design delivers up to 95% efficiency and, along with the lightweight switch-mode power supply, drastically reduces loudspeaker weight. Mackie

High-Definition Audio Processing provides unmatched sonic accuracy and clarity. Mackie Active technology includes a precision 3-way crossover, transducer time alignment, and phase correction. Plus, patented acoustic correction algorithms harness the power of proprietary measurement tools that identify sonic anomalies that are inherent to all horn-loaded systems. Extremely complex algorithms are then applied to the HD1531 to counter these anomalies; this improves vocal intelligibility while removing high frequency discord. EAW custom-designed HD Series transducers maximize efficiency and performance when matched with the system’s internal amps. The 15-inch woofer uses a neodymium magnet for reduced weight, and the 3-inch voice coil dissipates heat extremely well.

The 1.75-inch compression driver and 6-inch midrange transducer are loaded into Mackie’s wide-dispersion WaveFront™ system, which ensures optimum intelligibility for every seat in the house. The integrated 3-band contour EQ with a sweepable mid allows the user to custom-tailor system tone for their application or correct for common room anomalies. A bypass switch provides easy implementation of a pre-set EQ.

The 15mm birch plywood enclosure is rugged and ready for install using the 12 integral fly points. Standard M-10 eyebolts allow the HD1531 to be flown both vertically and horizontally. The look of the HD1531 is understated and the front LED can be defeated for maximum stealth. The lightweight design of the HD1531 allows for pole-mounting on a tripod stand or atop a subwoofer.

Highlights

• 15" 3-way High-Definition Powered Loudspeaker System
• 1800W of efficient Class-D Fast Recovery™ amplification
• LF amp: 700W RMS / 1400W peak
• MF amp: 100W RMS / 200W peak
• HF amp: 100W RMS / 200W peak
• Custom designed transducers by EAW
• 15” neodymium woofer with 3” voice coil
• 6” high-output midrange transducer
• 1.75 compression driver with heat-treated titanium diaphragm
• High-definition audio processing includes:
• Revolutionary patented acoustic correction
• Transducer time alignment and phase correction
• Precision 3-way crossover
• Optimized wide-dispersion
• WaveFront™ high/mid horn system
• User-adjustable 3-band contour EQ with sweepable mid-frequency
• Ultra-compact and lightweight
• Integrated limiting and protection circuitry
• Rugged all wood cabinet (15mm birch plywood)
• 12 integrated fly points for horizontal and vertical rigging using M10 threaded eyebolts
• Stand / pole mountable

Technical Specifications

• Frequency Response (–3 dB)
• 50 Hz - 18 kHz
• Frequency Range (–10 dB)
• 38 Hz - 20 kHz
• Horizonal Coverage (–6 dB)
• 90 ̊ averaged
• 2 kHz to 10 kHz
• Vertical Coverage (–6 dB)
• 40 ̊ averaged
• 2 kHz to 10 kHz
• Directivity Factor; Q (DI)
• 11.9 (10.7), averaged
• 2 kHz to 10 kHz
• Max SPL peak (calculated)
• 1
• 135 dB @ 1 m
• Max SPL peak (measured)
• 2
• 126 dB @ 1 m
• Crossover Points
• 400 Hz, 1500 Hz
• 1
• Calculated from driver sensitivity and amplifier power.
• 2
• Measured with pink noise, free field at 1 meter, before limiting.
• Input / Output
• Input Type
• Female XLR, balanced differential
• Input Impedance
• 11 k
• balanced
• Loop Out Type
• Male XLR, balanced differential

• Low Shelving
• ±3 dB @ 80 Hz (6 dB / octave)
• Mid Peaking
• ±3 dB, 100 Hz to 8 kHz, Q=1.5
• High Shelving
• ±3 dB @ 12 kHz (6 dB / octave)
• Low-Frequency Power Amplifier
• Rated Power
• 700 watts rms
• 1400 watts peak
• Rated THD
• < 0.03%
• Cooling
• Convection Extrusion
• Design
• Class D

• Rated Power
• 100 watts rms
• 200 watts peak
• Rated THD
• < 0.03%
• Cooling
• Convection Extrusion
• Design
• Class D

• Diameter
• 15 in / 381 mm
• Voice Coil Diameter
• 3 in / 76 mm
• Diaphragm Material
• Paper
• Magnet Material
• Neodymium

• Diameter
• 6 in / 152 mm
• Diaphragm Material
• Paper
• Magnet Material
• Ferrite

• Voice Coil Diameter
• 1.75 in / 44 mm
• Horn Entry Diameter
• 1 in / 25 mm
• Diaphragm Material
• Heat treated titanium
• Line Input Power
• US
• 100 - 120 VAC, 50 - 60 Hz, 1050W
• Recommended amperage service
• 9 amps
• EU, CN
• 200 - 240 VAC, 50 - 60 Hz, 1050W
• Recommended amperage service
• 5 amps
• AC Connector
• 3-pin IEC 250 VAC

• RMS limiting, power supply and amplifier thermal protection
• Construction Features
• Basic Design
• Trapezoidal, 20 ̊ 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
• Display LEDs
• Power ON, EQ ON, Sig/Limit,
• Thermal protection, Front Power Light ON
• Fly Points
• Twelve M10 x 1.5 mm
• Operating Temperature
• 0 ̊ - 40 ̊C
• 32 ̊ - 104 ̊F

• Height
• 35.4 in / 900 mm
• Front Width
• 18.3 in / 464 mm
• Rear Width
• 11.8 in / 300 mm
• Depth
• 18.8 in / 478 mm
• Net Weight
• 96.0 lb / 43.5 kg