The Mackie HD1531 3-Way High-Definition Powered Speaker delivers pristine clarity and high output power in a lightweight, durable cabinet that can be mounted on a speaker pole or flown overhead. A 15" woofer, 6" horn and, 1.75" high-frequency driver feature discrete amplifiers for 1800 watts of power total. In addition, active electronics by EAW deliver HD quality audio signal for pristine audio reproduction, maximum clarity and definition, and very low noise floor. A 3-band EQ section features a mid-range sweep for added control and frequency contouring.

1800W of Ultra-Efficient Class-D Fast Recover Amplification

LF 700W RMS / 1400W peak
MF 100W RMS / 200W peak
HF 100W RMS / 200W peak
High-Definition Audio Processing

Revolutionary patented acoustic correction
Transducer time alignment and phase correction
Precision 3-way crossover
Custom Designed Transducers by EAW

15" neodymium woofer with 3" voice coil
6" horn-loaded, high-output mid-range transducer
1.75" compression driver with heat-treated titanium diaphragm
Additional Features

User-adjustable 3-band contour EQ with sweepable mid-frequency
Optimized wide-dispersion WaveFront high/mid horn system
Ultra-compact and lightweight (96lbs)
Integrated limiting and protection circuitry
Rugged all wood cabinet (15mm birch plywood)
12 integrated fly points for horizontal and vertical rigging
Stand / pole mountable










Active or Passive Active
Frequency Response 50Hz - 18kHz, -3dB
Power Capacity LF Amplifier: 700 Watts RMS
MF Amplifier: 200 Watts RMS
HF Amplifier: 100 Watts RMS
Maximum Sound Pressure Level (SPL) 135dB @ 1m, long term
Nominal Sensitivity Not Specified by Manufacturer
Impedance 11k Ohms, Balanced (Input)
Crossover 400Hz, 1500Hz
Low Frequency Driver 15" (381mm) Neodymium Magnet
High Frequency Driver MF - 6" (152mm) Ferrite Magnet 
HF - 1.75" (44mm) Heat Treated Titanium
Enclosure Material 15mm Exterior Grade Birch Plywood
Input Connections Input - XLR-Female Balanced 11k ohms 
Loop Out - XLR-Male Balanced
Dimensions Height: 35.4" (900mm) 
Width Front: 18.3" (464mm)
Width Back: 11.8" (300mm)
Depth: 18.8" (478mm)
Weight 96 lb (43.5kg)