Mackie Professional Audio
SRM1801, Portable Powered Loudpseakers

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Mackie SRM1801

Model: SRM1801
18" Powered Subwoofer

The Mackie SRM1801 18" Powered Subwoofer delivers powerful, chest-thumping lows, perfect for your SRM450v2 PA system. The SRM1801 has a ported bass reflex design that produces tight low end. And the lightweight, ultra-efficient Class-D Fast Recovery™ power amplifier delivers 1000W peak power with less risk of thermal overload. This makes the sub extremely lightweight and portable, without compromising the power and performance that you need. It's the first ever 18" subwoofer specifically designed for use with the best-selling SRM450v2—add some serious low end to your portable PA with the SRM1801.


What does 1000W of peak power mean to you? It means having a subwoofer that delivers rump-shaking bass night after night. It means getting class-leading power and output. To accomplish this, the SRM1801 features Class-D Fast Recovery™ amplification. Class-D amps are more efficient and lightweight, with far less waste heat produced versus competing designs. Fast Recovery means you can occasionally push into clipping without a ton of nasty distortion. So, power is no problem... but how does it sound? The SRM1801 benefits from built-in Active electronics, like a precision crossover and tuning filters for accurate bass response. Some subwoofers have decent power, but when you listen, everything sounds loose and flabby. The SRM1801 delivers professional low end that you can feel...custom tuned to be tight and punchy.

Paired with a Mackie SRM450v2, you have a complete (and completely affordable) “plug and play” system that is ideal for small clubs, DJs or rehearsal spaces. The SRM1801 has both full-range and high-pass stereo outputs for connection to full-range top boxes. Just dial in the appropriate level and use the polarity switch to make sure the sub is in phase with the top boxes. The integrated pole-cup can accommodate a standard mounting pole, so your favorite speaker has a nice place to sit. Or you can just stack your full-range box right on top...the SRM1801 ain't picky. It's also a great match for the popular Mackie TH-15A and can easily integrate into nearly any existing PA setup you may have.

If you are looking into getting a subwoofer, than you probably have the following criteria in mind: You need as much power as possible. Well, the SRM1801 offers class-leading power in its price range. You need it to go low...body vibrating low. The SRM1801 has a high-output 18" woofer that can be felt from across the room. It's got to be easy to move and built to last. The SRM1801 incorporates features that make it lighter and more portable than the competition. Plus, it's made with rigid plywood (not fiberboard) to handle the rigors of the road. So, if you are looking for professional quality, portability and impressive low end for your SRM450v2 system, you have to check out the SRM1801. Use the Find a Dealer feature above and get yourself a demo today.

  • 1000W of ultra-efficient Class-D Fast Recovery™ amplification

  • Mackie Active electronics provide total system optimization
    • Precision crossover (125Hz)
    • Tuning filters for accurate bass response

  • 18-inch woofer delivers superior output and low-frequency extension (aka Thump)

  • Dual XLR inputs for mono or stereo applications

  • Stereo high-pass and full range outputs

  • User-adjustable level and polarity controls

  • Individual power, signal, OL, and thermal protect indicators

  • Pole receptacle for mounting full-range loudspeakers

  • Solid plywood enclosure with high-durability, textured black paint

  • Extremely lightweight and portable (73 lbs / 33.1 kg)

General Specifications
Acoustic Performance: Frequency Response(-3 dB): 50 Hz - 115 Hz
Frequency Response(-10 dB): 35 Hz- 150 Hz
Max SPL peak: 124 dB
Max SPL peak: 129 dB
Input/ Output: Input Type: Female XLR Balanced differential (stereo left/right)
Input Impedance: 20 kΩ balanced
Full Range Output: Male XLR Balanced ( parallel with input )
High Pass Output: Male XLR Balanced
Level Control: -6 dB to +6 dB
Transducers: Diameter: 18.0 in / 457 mm
Voice Coil Diameter: 3.0 in / 76 mm
Diaphragm Material: Paper
Magnet Material: Ferrite
Power Amplifier: Rated Power:  500 watts, 1000 watts peak
Rated THD: <0.1%
Cooling: Convection
Design: Class D
Electronic Crossover: Crossover Type: 24 dB / octave, Linkwitz-Riley
Crossover Frequency: 125 Hz
Protection Features: Over-excursion Protection: 40 Hz 24 dB / oct, Butter worth High Pass Filter
Thermal Protection: Amplifier mute, auto reset
Driver Protection: Peak / RMS Limiter
Display LEDs: Thermal, OL, Signal, Power
Operating Temperature: 0° - 40°, 32°C, 32° - 104°
AC Power Requirements: US: 100 - 120 VAC, 50 - 60 Hz, 160W
EU: 100 - 240 VAC, 50 - 60 Hz, 160W
AC Connector: 3-pin IEC 250 VAC, 15 A male
Construction Features: Basic Design: Trapezoidal
Material: Void-free Plywood
Finish: Textured black catalyzed polyurethane paint
Handles: One on each side
Grille: Perforated metal
 Physical Properties: Height: 24.1 in/ 612 mm
Front Width: 20.2 in / 513 mm
Width: 15.1 in / 383 mm
Depth: 25.3 in / 643 mm
Weight: 73 lb / 33.1 kg
Mounting Methods: Floor Mount only
*Warning: The cabinet has no rigging points and is not suitable for rigging. Never attempt to suspend the SRM1801 by its handles.


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