JBL SRX918S -18" 110W Powered Subwoofer

  • High-Performance, High-Density
  • High-Powered 18" Woofer
  • Passively Cooled Class-D Amplifier
  • Two Ethernet Ports with etherCON
Special Price $2,299.00 Regular Price $3,300.00
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18-inch Powered Subwoofer
The SRX900 Series embodies the advanced performance principles that drive JBL's development of audio products that make a real difference in the world of professional audio. This next-generation family of powered line arrays and subwoofers addresses the growing need for scalable small and medium-format professional sound-reinforcement solutions for rental companies, fixed installations and musicians seeking the ultimate combination of performance and portability.

The SRX918S is a single 18-inch active subwoofer designed to complement SRX900 Series full-range sound reinforcement systems. The subwoofer houses a JBL 2279-1 18-inch woofer 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 SRX918S incorporates a large 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. Learn more about JBL Performance here.



  • High-performance, high-density system solution in a truck-pack friendly format
  • High-power-handling transducers deliver low distortion, high fidelity, and class-leading output
  • Built-in, passively cooled Class D amplification with a universal power supply
  • Dual Ethernet ports with Neutrik etherCON connectors
  • Supports HARMAN HControl Ethernet
  • User-controllable DSP
  • LevelMax limiting uses sophisticated excursion-control algorithms to protect transducers
  • Rear-panel LCD provides complete access to control features
  • Reinforced 18mm plywood enclosures


Frequency Range (-10dB)35 Hz-90 Hz (Preset: 80 Hz)
Coverage PatternOmnidirectional or Cardioid
Maximum SPL134 dB (Preset: 80 Hz)
System TypeActive Subwoofer
Amplifier DesignClass-D
Continous Power Rating1,100 Watts
LF Driver(1) JBL 2279G-1, 18 in diameter, 4 ohms, dual 3.0 in diameter voice coil, ferrite Differential Drive®
Enclosure18 mm plywood, Black DuraFlex finish, two integral recessed handles
Dimensions (H x W x D)575 mm x 684 mm x 683 mm
(22.6 in x 26.9 in x 26.9 in)
Net Weight (each)44.5 kg (98 lbs)
More Information
MPN (manufacturer part number)SRX918S
UPC (Universal Product Code)691991035609
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