JBL SRX928S Best-in-Class Performance - Image

Best-in-Class Performance

JBL transducer technology delivers class-leading low frequency performance and superior dynamic range

JBL SRX928S Configurable - Image


Form cardioid arrays simply by orienting the cabinets and selecting a preset

JBL SRX928S Powered Solution - Image

Powered Solution

Onboard Class-D amplification and DSP provide optimum performance and consistency across the world


JBL SRX928S Complete System - Image

Complete System

The SRX900 Series is a complete solution featuring full-range products, subwoofers, accessories, and software

JBL SRX928S Versatile Rigging System - Image

Versatile Rigging System

Provides flexibility to pole mount, ground stack, or fly the SRX900 series

JBL SRX928S Built-in DSP - Image

Built-in DSP

Includes 24 user-adjustable filters, 2,000 ms of delay, and advanced features like Array Size Compensation and FIR-based Throw Distance Correction filters

JBL SRX928S Large Central Low Frequency Port Design - Image

Large Central Low Frequency Port Design

Improves airflow and reduces audible turbulence, even at high output levels

JBL SRX928S New, Full-featured Software Package - Image

New, Full-featured Software Package

Gives users control of the system on various platforms, including Windows, macOS, and iPad OS

JBL SRX928S Dual Ethernet Ports - Image

Dual Ethernet Ports

With Neutrik etherCON connectors supports HARMAN HControl Ethernet

JBL SRX928S LevelMax Limiting - Image

LevelMax Limiting

Uses sophisticated excursion-control algorithms to protect transducers

JBL SRX928S Rear-panel LCD - Image

Rear-panel LCD

Provides complete access to control features

Frequently Bought Together

Specs & Downloads

Item# JBL-P3243MX-LS


Affordable Line Arrays for Serious Pros

The SRX928S is a dual 18-inch active subwoofer designed to complement SRX900 full-range sound reinforcement systems. The subwoofer houses two JBL 2279-1 18-inch woofers, featuring Differential Drive® – JBL’s dual voice coil, dual gap technology – to deliver better heat dissipation, lower power compression, and wider dynamic range than conventional single-coil designs. Built-in DSP and amplification offer a plug and play experience, while providing consistency and optimum performance anywhere in the world. The SRX928S incorporates a large central low frequency port design that improves airflow and reduces audible turbulence, even at high output levels. A new, full-featured software package gives users control of the system on various platforms, including Windows, macOS, and iPad OS.

General Specifications

Power Rating (W, Continuous)
Power Rating (W, Peak)
Frequency Range Hz (-10 dB)
31 - 100
Maximum SPL (peak dB)


Width (in)
Weight (lbs)
Width (mm)
Height (in)
Height (mm)
Weight (kg)
Depth (in)
Depth (mm)


Transducer Differential Drive JBL

What's in The Box?

  • 1 x SRX928S
  • 1 x Neutrik NAC3FX-W-TOP
  • 1 x Neutrik NAC3MX-W-TOP

Documents & Downloads

Reviews and Q&A

Customer Reviews

Product Q&A

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  • questions, product
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