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Open-Box JBL SRX918S 18" Powered Subwoofer Condition 1 - Mint

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2049.52 $2,049.52
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A high-performance 18" active subwoofer from JBL.

The JBL SRX918S 18" powered subwoofer is designed to deliver massive low end for live sound reinforcement and recording applications. With dual 18" woofers, 3,000W of power and intelligent processing, it produces tight, defined bass that you can feel. Its rugged but portable design is ideal for both permanent installations and mobile use.

Massive Low End With Dual 18" Woofers

At the heart of the SRX918S are two high-power 18" woofers with dual voice coils, allowing each driver to handle 1,500W continuously. They move lots of air to generate deep, powerful bass that provides a solid foundation for your mix. The woofers are made of durable materials to withstand the demands of live performance and high SPLs.

Even Coverage Through Precision Waveguides

The SRX918S uses precision waveguides to disperse the sound from its woofers evenly over a wide area. This provides uniform coverage throughout the venue so everyone experiences the same full-range mix with solid low-end. The waveguides also focus the sound where you need it, reducing unwanted energy behind the subwoofer.

Advanced DSP Processing for Optimization

With on-board digital signal processing (DSP), you have control over the SRX918S's sound. A 24-band EQ lets you tune the frequency response, while delay allows you to time align the subwoofer with the rest of your system. JBL's ASC filter corrects the bass response for different array sizes and the TDC filter compensates for low-end loss over distance. You can also generate pink noise to test the system without a mixing console.

Rugged, Portable Design for Live Sound

The SRX918S is built to handle the demands of touring and live sound. Its 18mm plywood enclosure is reinforced to minimize flex and it has an IP-54 weather-resistant rating for outdoor use. Integrated handles and three-point suspension make transporting and suspending the subwoofer easy. Overall, the SRX918S delivers professional-grade performance and reliability in a package suited for both permanent installs and mobile applications.


  • High-performance, high-density system solution in a truck-pack friendly format
  • High-power-handling transducers deliver extremely low distortion, high fidelity and class-leading output
  • Precision waveguides provide exact pattern control
  • User-controllable DSP includes 24-band parametric EQ, delay, JBL Array Size Compensation and FIR-based Throw Distance Compensation filters
  • LevelMax limiting uses sophisticated excursion-control algorithms to protect transducers from mechanical damage
  • Integrated into JBL Performance, Line Array Calculator 3 and Array Link applications
  • Radiation Boundary Integrator (RBI) mounts transducers on a single horn, improving horizontal directivity while minimizing cabinet size
  • Differential Drive dual-voice coil, dual-gap woofer design delivers better heat dissipation, lower power compression and wider dynamic range than single-coil designs
  • Built-in, passively cooled Class-D amplification
  • Rear-panel LCD provides complete access to control features
  • Dual Neutrik etherCON connectors
  • Supports HARMAN HControl ethernet protocol for improved network performance and simplified network management
  • Innovative three-point rigging system makes suspending systems easy and safe, regardless of system size or user experience level
  • 18 mm plywood subwoofer enclosures are acoustically optimized and designed for a clean, modern look
  • Enclosed side panels with integrated handles simplify storage and transport
  • Available accessories include array frames, pole-mount and truss-clamp adapters, cases, carts and covers (sold separately)
  • Power cable not included. A True1 cable will need to be purchased separately for operation.

      Order the SRX918S 18" powered subwoofer now.


      SRX918S 18" Powered Subwoofer Specifications:

      • Frequency response: 35Hz–90Hz (–10dB)
      • Audio I/O: (2) Neutrik XLR
      • (1) JBL 2279G-1, 18" diameter, dual 3" voice coil, ferrite Differential Drive
      Dimensions and Weight
      • Dimensions (HxWxD): 22.6" x 26.9" x 26.9"
      • Weight: 98 lb.

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