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18″ 1600 Watt Powered High-Definition Subwoofer


Mackie’s 1600 Watt HD1801 18″ Powered Subwoofer features Class-D Fast Recovery™ amplification, which makes the HD1801 ultra-efficient, effortlessly delivering massive power to the 18″ driver.  Expertly tweaked tuning filters, internal crossovers and protection circuitry are designed by EAW for the ultimate in professional performance.

Pair HD1801 subwoofers with HD1531 full-range loudspeakers for the ultimate portable, high-definition PA system.  The precision-tuned HD1801 is the perfect match for the HD1531, with a high-pass output specifically designed to alleviate the power-hungry low frequencies from getting to your top boxes.  This powerful HD system features tons of protective circuitry like peak and RMS limiting and over-excursion/thermal protection.

The HD1801 Powered Subwoofer delivers 1600 watts of peak power using Mackie’s Class-D Fast Recovery™ amplification. Class-D amps allow for extremely high-output in a design that is much lighter than traditional amplifiers.  Mackie’s Fast Recovery™ design allows the amplifier to recover more quickly when pushed into clipping, which means less distortion when things get too loud.

The ported, direct-radiating design means super-low frequency extension that is smooth and powerful.  EAW also custom specified the 18″ driver to work in perfect harmony with the amplifier.  Some competitors claim high wattage, but use limiters to reduce the amount of actual power that hits the speaker.  The woofer is designed to soak up each and every bit of power the amp puts out.  Precision phase control and tuning filters make the HD1801 the perfect companion to the HD1531, especially when using the high-pass outputs.

For maximum versatility, Mackie has incorporated 12 M10 rigging points on the HD1801.  Also, the enclosure is built using 15mm birch and covered in durable textured black paint that minimizes the risk of scratching.  The grill is made using powder coated steel and is flush with the enclosure to avoid denting.



  •   〉  1600W of ultra-efficient Class-D Fast Recovery™ amplification
    •      »  800WRMS / 1600W peak power
    •      »  133 dB SPL max output (peak @ 1m)
    •      »  35 Hz to 145 Hz operating range
  •   〉  18″ high-output woofer with 4″ voice coil
  •   〉  Active electronics provide complete system optimization
    •      »  Symmetrical Linkwitz-Riley crossover (100Hz, 24dB/octave)
    •      »  Precision tuning filters for ultra-accurate bass reproduction
    •      »  Phase alignment to perfectly complement Mackie full-range HD loudspeakers
  •   〉  Ported, direct-radiating design for maximum punch and low-frequency extension
  •   〉  Designed and tuned by Eastern Acoustic Works (EAW)
  •   〉  Dual XLR inputs, full-range and high-pass outputs for mono or stereo setups
  •   〉  Level control and polarity invert switch with LED indicator
  •   〉  Signal/limit and thermal LED indicators
  •   〉  Integrated protection and limiting circuitry
  •   〉  Rugged all-wood cabinet (15mm birch plywood)
  •   〉  Pole mount receptacle for mounting full range speaker
  •   〉  12 integrated M10 flypoints
  •   〉  Compact and lightweight (106 lbs/48.1 kg)



Frequency Response (–10 dB) 35 Hz – 145 Hz
Frequency Response (–3 dB) 44 Hz – 95 Hz
Max peak SPL (calculated)* 133 dB

*Calculated from peak driversensitivity and amplifier power, half space.

Max peak SPL (measured)** 129 dB
**Measured with swept sine at 1 Wwithin operating range, scaled for max power, half space
Diameter 18.0″ (457 mm)
Voice Coil Diameter 4.0″ (102 mm)
Diaphragm Material Paper
Magnet Material Ferrite
Rated Power 800 watts rms, 1600 watts peak
THD < 0.03%
Design Class D
Cooling Active, twin thermally controlled vari-speed fans
Input Type Female XLR Balanced differential (stereo left/right)
Input Impedance 20k ohms
Full Range Output Male XLR Balanced (parallel with input)
High Pass Output Male XLR Balanced
Output Impedance 300 ohms
Level Control –6 dB to +6 dB
Crossover Type 24 dB/oct., Symmetrical Linkwitz-Riley
Crossover Frequency 100 Hz
Over-excursion Protection 40 Hz 24 dB/oct. Butterworth High Pass Filter
Thermal Protection Amplifier mute, auto reset, twin thermally controlled vari-speed fans
Driver Protection Peak/RMS Limiter
Display LEDs Power Light ON, Polarity Invert, Thermal, Sig/Limit, FrontPower ON
AC Power Requirements (US) 100-120 VAC, 50-60 Hz, 300 watts
AC Power Requirements (Europe) 220-240 VAC, 50-60 Hz, 300 watts
AC Connector 3-pin IEC 250 VAC,15 A male
Basic Design Rectangular
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 12 M10 x 1.5 mm
Dimensions 23″ H x 23″ W x 25.8″ D (584 x 584 x 655 mm)
Weight 106 lbs (48.1 kg)




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