Mackie SR18S 18" 1600W Professional Powered Subwoofer

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The Mackie SR18S is a high-output, professional powered subwoofer well suited for mobile entertainment, AV rental, event production, clubs, and performance venues. The subwoofer features the latest acoustic processing technology, powerful amplification, and versatile configurations to deliver remarkable sound and reliability.

The 18" direct-radiating driver is powered by a 1600W Class-D amplifier, which delivers high sound pressure levels with dynamic and musical sound reproduction of very-low frequencies. The rear panel features a pair of balanced XLR inputs, a pair of full-range XLR outputs, and a pair of high-pass XLR outputs. Additionally, the custom voicings and variable crossover make optimization for your system simple and easy.

The "built-like-a-tank" construction features a rugged wood cabinet and tough steel grille that is built to last. A great complement to the SRT Series, SRM | V-Class Series or any PA, the SR18S not only adds powerful low end, but allows for a massive increase in efficiency and output for your whole system.

True Workhorse for Gigging Professionals

  • 1600W Class-D amplifier is designed for ultrareliable, consistent performance
  • Custom high-efficiency transducer ensures maximum punch
  • Increases efficiency of your full-range loudspeakers by taking care of the low end for the entire system
  • Built-Like-A-Tank to conquer every gig while lightweight for easy loading
  • Frequency response: 33 to 200 Hz
  • Max SPL: 133 dB

Custom Voicing Presets

  • Flat: Natural balance between deep bass and overall output
  • Deep: Emphasizes ultralow frequencies. Great for dance, rap, and electronic music
  • Punch: Prioritizes highest possible output level. Great for bands and rock music

Optimized for Your System

  • Variable crossover frequency
  • Polarity invert switch
  • Defeatable front LED
  • Stereo or mono-summing for single or dual subwoofer deployment
  • Variable level control (-6 dBU to +6 dBU)

Transparent System Limiting and Protection

  • Dedicated processing module monitors and protects the amplifier in real time 
  • Sound quality and tonal balance is maintained even under heavy limiting
  • Input limiting keeps your source signal in check so if you’re sending audio that’s a bit too hot, the speaker will cool it down
  • Universal power supply (100-240 VAC) with power factor correction for stable operation even with unstable AC power

Versatile I/O and Configuration Options

  • Stereo XLR inputs
  • Stereo full-range XLR outputs
  • Stereo high-pass XLR outputs
  • Integrated pole cup
Configuration Active Subwoofer
Enclosure Type Bass-Reflex Subwoofer
Total Power Capacity 1600 W 
Amplifier Power Rating 1 x 1600 W 
Amplifier Class Class-D
MF Driver None
LF Driver 1 x 18" / 457.2 mm Woofer
Frequency Response 33 Hz to 200 Hz
Maximum SPL 133 dB
Gain Range -6 dBu to +6 dBu
Protections Output Limiter
Audio I/O 2 x XLR 3-Pin Female Balanced Line Input (Lockable)
4 x XLR 3-Pin Male Balanced Line Output (Lockable)
Network I/O None
USB None
Wireless Connectivity None
Signal Processing
Crossover 80 to 160 Hz
EQ None
Filters None
Dynamic Processing Limiter
Alignment Delay None
Phase Adjustment 180°
Digital Signal Processing Voicing Modes
AC Input Power 100 to 240 VAC, 50 / 60 Hz 
AC Power Connector 1 x IEC Input
Mounting 1 x Pole Socket (Top)
Handles 2 x Each Side
Construction Material Metal Grille, Plywood
Dimensions 23.3 x 23 x 27" / 591.8 x 584.2 x 685.8 mm
Weight 74.5 lb / 33.8 kg
More Information
Price $1,079.99
Vendor Item Number SR18S
Special Order 1
Coming Qty 0
Manufacturer Mackie
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