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Open-Box JBL SRX928S Dual 18" Powered Subwoofer Condition 1 - Mint

Q&A SKU #L95689004000000
3633.52 $3,633.52
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A high-performance dual 18" active subwoofer from JBL.

The SRX928S dual 18" powered subwoofer from JBL offers professional-level performance for small to medium live shows. With dual 18" woofers, it delivers powerful low-frequency sound with minimal distortion. JBL precision waveguides provide controlled sound dispersion for accurate coverage. The system is scalable so you can start with a single subwoofer and add more as needed for larger shows.

Dual 18" Woofers Produce Powerful Bass

The SRX928S is equipped with dual 18" woofers to provide robust low-frequency response. The woofers use a differential drive design with dual voice coils and dual gaps for improved heat dissipation and wider dynamic range. The woofers have neodymium magnets and integrated heat sinks to handle high power levels with minimal distortion. The result is a subwoofer that can produce a rich, full low end for live performances.

Precision Waveguides Provide Controlled Dispersion

JBL designed the SRX928S with precision waveguides and horns to provide accurate control of sound dispersion. The waveguides allow for seamless coverage from front to back and minimal unwanted sound behind the subwoofer. The large horn also provides low-frequency control to reduce boominess. The waveguides and horns, combined with the dual 18" woofers, result in a subwoofer with tight, defined low-frequency response.

Scalable, Versatile System for Any Size Show

The SRX928S subwoofer system is scalable so you can start with a single subwoofer for small shows and add more as needed for larger shows. The subwoofers integrate with JBL's other touring sound equipment so you can build a complete system tailored to your needs. The subwoofers also work in various configurations, from pole-mounting to ground-stacking to flying arrays of up to 16 cabinets. The versatile, scalable design makes this an affordable solution for any size live performance.

Advanced DSP and Limiters for Optimized Sound

The SRX928S includes sophisticated digital signal processing to optimize the sound. It offers 24-band parametric EQ, up to 2,000ms of delay and level control. JBL's Array Size Compensation filter corrects the sound based on array size, while the Throw Distance Compensation filter provides consistent sound coverage at different distances. Advanced LevelMax limiters, co-developed with Crown, protect the woofers from damage. The DSP and limiters allow you to achieve premium sound quality and maximum performance from the SRX928S subwoofers.


  • 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 SRX928S dual 18" powered subwoofer now.


SRX928S Dual 18" Powered Subwoofer Specifications:

  • Frequency response: 31Hz–100Hz
  • Audio I/O: (2) Neutrik XLR
  • (2) JBL 2279H-1 18" diameter, dual 3" voice coil, ferrite Differential Drive
Dimensions and Weight
  • Dimensions (HxDxW): 22.2" x 47.4" x 26.8"
  • Weight: 155 lb.

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