Item #1576726 Model #JBL-PRX918XLF-NA

JBL PRX918XLF 18" Powered Subwoofer Black


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Professional portable subwoofer packed with advanced tech.

The PRX918XLF subwoofer, part of the JBL PRX900 series of powered loudspeakers and subwoofers, takes professional portable PA performance to a new level with advanced acoustics, comprehensive DSP, unrivaled power performance and durability—as well as complete BLE control via the JBL Pro Connect app.

This 18" powered subwoofer is built from the ground up to leverage JBL’s most advanced acoustic innovations. A next-generation driver—powered by an ultra-efficient Class D amplifier—delivers clear, defined bass with smooth low-frequency extension at maximum volume.

The PRX918XLF’s class-leading DSP package, accessible via onboard LCD or the JBL Pro Connect app, includes 6-band parametric EQ for system tuning and nuanced tonal control, plus a lowpass filter and 20ms delay.

The JBL Pro Connect app provides complete hardware and DSP control of up to 10 speakers. Integrate with JBL EON ONE MK2, PRX ONE and EON700 systems, and access app-only functions including speaker snapshots and grouping.

PRX918XLF is designed to withstand the rigors of the road. It’s enclosed in an 18 mm birch cabinet with optimized bracing for smooth low-frequency response and improved durability. Like with every JBL product, everything is reinforced by industry-leading test and validation protocols and backed by a seven-year warranty.

The PRX928XLF is a versatile solution for DJs and bands, music venues, rental houses, corporate A/V providers, or anyone who needs durable professional systems that deliver powerful, room-filling sound in any portable or installed scenario.
  • Transducer: 918SG 18" ferrite magnet woofer
  • Amplification: Class D
  • Power: 2,000 watts peak/1,000 watts RMS
  • Frequency response: 30Hz–110Hz @ 2pi (–10dB); 35Hz–92Hz @ 2pi (–3dB)
  • Max SPL: 134dB
  • XLR balanced combo jacks: 2
  • XLR pass-through outs: 2
  • Mount: M20 pole cup
  • Ultralow system latency: < 1 ms
  • Integrated handles: 2 (top and side)
Product Weight and Dimensions
  • Weight: 89.7 lb.
  • Dimensions (HxWxD): 27.3" 23.3" x 25.7"


  • 918SG 18" ferrite magnet woofer
  • Low-noise, low-distortion gain staging design
  • Lightweight, efficient Class D amplification
  • Color LCD screen provides access to comprehensive DSP suite
  • DriveRack Technology includes Automatic Feedback Suppression, system limiter and 180 ms of speaker delay in 100-microsecond intervals for precise time-aligned systems
  • Optimized presets for pairing full-range speakers and subwoofers
  • JBL Pro Connect app allows full system control of up to 10 speakers and line integration with JBL EON ONE MK2, PRX ONE and EON700 systems
  • BLE networking via JBL Pro Connect app
  • 18 mm birch cabinet features optimized bracing for smooth low-frequency response
  • Quiet fanless operation