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JBL SRX918S 2,500-watt 18-inch Powered Subwoofer

2,500-watt Powered Subwoofer with 18" Driver, DSP, Wi-Fi Compatibility, LCD, and JBL Software Suite
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JBL SRX918S 2,500-watt 18-inch Powered Subwoofer
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Powerful Subwoofer with Serious Control

The SRX918 subwoofer brings the low-end power to JBL’s SRX900-series sound system! This 18-inch powered subwoofer boasts dual voice coil, dual gap technology that delivers massive bass response down to 35Hz. JBL has upgraded the SRX918 with improved heat dissipation, lower power compression, and a tremendous dynamic range that’s designed to excel with any of JBL’s other tour sound products. Plus, the integrated power and a wide range of DSP effects make the SRX918S an excellent choice for those seeking a plug-and-play solution for their low-end needs. The live sound engineers at Sweetwater love the amount of control JBL built into the SRX900 series — a rear-panel LCD makes switching up your settings simple. And if you need control from a distance, the SRX918 is both Ethernet and Wi-Fi compatible to connect to JBL’s all-encompassing software suite. Looking to bolster your sound system with some ground-shaking bass power? The SRX918 fits the bill.

High-performance, 18-inch woofer

JBL’s SRX900-series subwoofers are powered by 2279-1 drivers, boasting an 18-inch construction for a clear and articulate bass response all the way down to 35Hz! The 2279-1 utilizes a dual 3-inch voice coil design that, when paired with JBL’s innovative Differential Drive technology, offers an incredible amount of floor-shaking power, clarity, and sensitivity in a highly portable package. What’s more, 900-series subwoofers can be operated in both omnidirectional and cardioid patterns simply by switching up your preset configurations on the cabinet’s rear-panel LCD.

Scale up your system

The SRX900 series is an all-encompassing system, including loudspeakers, subwoofers, software, and a wealth of accessories that will take your sound to the next level. However, if you’re looking to start small and build your way up to a world-class system, the SRX900 series is built with effortless scalability in mind; every product in the SRX900 series is designed with the same voicing targets and phase characteristics of JBL’s other tour sound offerings to perfectly mix and match a system to your particular needs. Plus, SRX900-series subwoofers feature both 60Hz and 80Hz operating modes for compatibility with any and all SRX900-series full-range speakers.

Optimize your sound

No power amp, no problem! The SRX900 series’ fully integrated class-D power is an uncompromising design that’s tailor-made to get the most out of your speakers. In addition, powerful DSP features including Array Size Compensation, FIR-based Throw Distance Correction filters, 2,000ms of delay, and 24 user-adjustable filters are included to perfectly optimize your system, regardless of your setup and space.

JBL SRX918S 18-inch Powered Subwoofer Features:

  • 2,500W 1 x 18-inch powered subwoofer with dual 3-inch voice coil design that delivers massive low-end power
  • Maximum peak output of 134dB
  • Designed to perfectly complement any of JBL’s other tour sound offerings, with both 60Hz and 80Hz operating modes
  • Omnidirectional/cardioid operation to prevent mic bleed in live situations
  • Rear-panel LCD for easy adjustment of settings and presets
  • Wide-ranging DSP effects, including Array Size Compensation, FIR-based Throw Distance Correction filters, 2,000ms of delay, and 24 user-adjustable filters for complete optimization of your sound
  • Dual voice coil and dual gap technology offer a massive dynamic range, reduced power compression, and improved heat dissipation
  • Low-frequency port to increase airflow and reduce audible turbulence
  • JBL software package for complete control over the SRX900 system available on Windows, macOS, and iPad OS

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Tech Specs

  • Powered/Unpowered: Powered
  • LF Driver Size: 18" subwoofer
  • Power Rating: 1100W, Class-D
  • Total Power: 2500W
  • Inputs: 1 x XLR
  • Outputs: 1 x XLR
  • Data I/O: 2 x EtherCon
  • Frequency Range: 35Hz-90hz (-10 dB)
  • Maximum Peak SPL: 134 dB SPL
  • Mounting Options: Floor
  • Power Source: 1 x powerCON TRUE1 (in), 1 x powerCON TRUE1 (out/loop)
  • Enclosure Material: 18mm plywood
  • Height: 22.6"
  • Width: 26.9"
  • Depth: 26.9"
  • Weight: 98 lbs.
  • Manufacturer Part Number: JBL-P3241MX

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