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Mackie

Mackie MCK-2051880-00 SR18S 18" 1600W Professional Powered Subwoofer

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SRT Series Professional Powered Loudspeakers are designed for real-world performance. The latest acoustic processing technology, powerful amplifiers, and ultra-versatile SRT Mix Control + SRT Connect app means easy setup, incredible sound, and unbeatable reliability.

View Product Features

  • The ultimate workhorse loudspeaker
  • Industry-leading 1600W Class-D amplifier with transparent system limiting and protection
    Superior sound with Advanced Impulse™ DSP tuning
  • Custom transducers and SymX™ Horn for unmatched clarity and accuracy
  • SRT Mix Control™ built-in 4-channel digital mixer with Bluetooth®
  • Complete wireless control via the SRT Connect™ app
  • Wirelessly link 2 SRT speakers together for music streaming applications plus control
  • Dual-angle pole mount plus angled design for use as a floor monitor
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About the Mackie MCK-2051880-00 SR18S 18" 1600W Professional Powered Subwoofer

The Mackie SR18S is a professional powered subwoofer designed to deliver deep, powerful low-frequency reinforcement for mobile DJ applications, live sound reinforcement, and installed audio systems. It houses a high-excursion 18-inch driver within a ported, 18mm plywood enclosure, powered by a dedicated 1600-watt peak class-D amplifier. The integrated digital signal processing provides precise tuning for the cabinet, dynamic limiting for driver protection, and a variable low-pass crossover for seamless blending with full-range main speakers. Engineered for high output and reliability, this subwoofer provides the foundational bass required to energize medium to large venues with punch and clarity, ensuring music and programmed material translate with impact.

The rear panel offers comprehensive connectivity and user-friendly controls for flexible system integration. It features dual combination XLR/TRS inputs with independent level controls, a stereo RCA input for media players, and both XLR and RCA outputs that supply a high-pass filtered signal to daisy-chain to the main speakers. Key controls include a continuously variable low-pass crossover, a polarity reversal switch, and a ground lift to eliminate potential hum loops. The inclusion of multiple DSP presets allows users to quickly optimize the subwoofer's response for different applications, such as live music, recorded music playback, or speech, making it adaptable to a wide range of event requirements.

Built for portability and durability in mobile applications, the SR18S is equipped with heavy-duty steel handles, integrated large-diameter casters, and a rugged textured finish. Its balanced design provides stable stacking and easy transport. The subwoofer’s performance is characterized by extended low-frequency response and high maximum output, capable of producing substantial sound pressure levels to support the main PA system. By combining substantial amplifier power, intelligent processing, and robust construction, the Mackie SR18S serves as a reliable and powerful low-frequency foundation for any professional portable or installed sound system.

Key Features

  • The ultimate workhorse loudspeaker
  • Industry-leading 1600W Class-D amplifier with transparent system limiting and protection
    Superior sound with Advanced Impulse™ DSP tuning
  • Custom transducers and SymX™ Horn for unmatched clarity and accuracy
  • SRT Mix Control™ built-in 4-channel digital mixer with Bluetooth®
  • Complete wireless control via the SRT Connect™ app
  • Wirelessly link 2 SRT speakers together for music streaming applications plus control
  • Dual-angle pole mount plus angled design for use as a floor monitor

Mackie MCK-2051880-00 SR18S 18" 1600W Professional Powered Subwoofer Specs

Driver & Amplification
Driver Size
18 Inch
Amplifier Power
1600 Watts Peak
Amplifier Class
Class-D
Design Type
Ported (Bass Reflex)
Processing & Control
Low-Pass Crossover
Variable, 50-150 Hz
Crossover Slope
24 dB/octave
DSP Features
Optimization, Limiting
Presets
Multiple Voicing Options
Phase Control
0/180 Degree Switch
Connectivity
Input Channels
2 x XLR/TRS Combo
RCA Input
Stereo Pair
High-Pass Outputs
XLR and RCA
Link Output
XLR Parallel
Physical & Mobility
Enclosure Material
18mm Plywood
Finish
Textured Coat
Handles
Steel, Recessed
Wheels
Integrated Large Casters
Pole Mount
Top 35mm Socket (for speaker)
Performance
Frequency Response
35 Hz - 150 Hz
Maximum SPL
134 dB Peak
Voltage
Universal 100-240V AC
Recommended Use
Live Sound, Mobile DJ

Key Features

  • The ultimate workhorse loudspeaker
  • Industry-leading 1600W Class-D amplifier with transparent system limiting and protection
    Superior sound with Advanced Impulse™ DSP tuning
  • Custom transducers and SymX™ Horn for unmatched clarity and accuracy
  • SRT Mix Control™ built-in 4-channel digital mixer with Bluetooth®
  • Complete wireless control via the SRT Connect™ app
  • Wirelessly link 2 SRT speakers together for music streaming applications plus control
  • Dual-angle pole mount plus angled design for use as a floor monitor
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