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JBL PRX818XLFW 18" Self-Powered Extended Low-Frequency Subwoofer System
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Product #39058
Usually Ships in 4 - 6 Weeks

JBL PRX818XLFW 18" Self-Powered Extended Low-Frequency Subwoofer System

Product #39058 | SKU PRX818XLFW
Usually Ships in 4 - 6 Weeks

Product Features
  • For Bands, DJs, Clubs, Schools, Churches
  • Optimised for FOH Systems
  • 18"(45.7 cm) Woofer for Power and Accuracy
  • Frequency Response: 35 to 87 Hz
  • 134 dB Max SPL Output
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Product Details
  • Product: #39058
Our Price $2,949.00

Delivery - $32.00*
Usually Ships in 4 - 6 Weeks
Usually 4 - 6 Weeks
Usually 4 - 6 Weeks
*estimated shipping to Auckland


The PRX818XLFW from JBL is an extended low-frequency subwoofer designed and engineered to provide sub-bass frequencies with accuracy and power with extensive Wi-Fi control over the on-board DSP. Well suited for event halls, bands, DJ systems, clubs, bars, schools, and churches, the speaker utilises a 1500 W Class-D amplifier to power the 18"(45.7 cm) woofer, which offers a frequency range of 30 to 103 Hz at 134 dB maximum SPL output.

The built-in Wi-Fi offers wireless control of the system from anywhere in the venue using the free PRX Connect app for iOS and Android devices. The app controls levels, an 8-band parametric AEQ, user presets, and up to 50 ms of user-defined delay to fine-tune your setup. The durable 18 mm plywood enclosure is coated with an Obsidian DuraFlex finish and a powder-coated steel grille with acoustical transparent black-cloth backing.

Key Features

  • Maximum SPL Output 134 dB Peak
  • 18”(45.7 cm) Differential Drive low-frequency driver for low distortion and higher SPL
  • 1500 W highly efficient Class-D amplifier
  • DSP input-limiter circuit, crossover, dynamic limiting, and component optimisation
  • Wireless remote control of its on-board DSP AEQ parameters via Wi-Fi. Control and configure your show from anywhere
  • Professional XLR-1/4” combination inputs and XLR loop-through
  • Top-panel M20 pole-mount socket for sub/satellite configuration
  • Injection-moulded handles with comfort-rubber grips for easy transport
  • Lightweight poplar-plywood cabinets made structurally sound with tongue-and-groove joints and protected by JBL’s tour-proven DuraFlex finish


System Type Self-Powered 18.0" / 45.7 cm, subwoofer
Max SPL Level 134 dB peak
Frequency Range Frequency Range (-10 dB): 30 to 103 Hz
Frequency Response ± 3dB 35 to 87 Hz
Input Connectors 2 x Balanced combo XLR-1/4" / 6.35 mm input
Input Impedance 20 kOhms (balanced)
Signal Indicator Limit: Yellow LED indicates peak output has been reached and DSP limiter is acting
Signal: Green LED indicates signal present
Power: Blue indicates system has power and ready to pass audio
Dynamics dbx Type IV limiter circuit
Crossover Frequency Internal Crossover Frequency: 100 Hz DSP Loop out Crossover Frequency: 120 Hz analogue 24 dB filter slope
Design Highly efficient Class-D amplifier
Power Rating 1500 W
AC Power 100 to 240 VAC ~ 50/60 Hz
LF Driver 1 x JBL 2278G 460 mm (18.0" / 45.7 cm) woofer
Enclosure Rectangular, 18 mm, plywood
Transport and Storage 2 x injection-moulded handles with backing cup
Finish and Grille Colour Finish: Obsidian DuraFlex finish
Grille: Powder-coated, Obsidian, 16-gauge perforated steel with acoustical transparent black-cloth backing
Dimensions (H x W x D) 27.3 x 20.6 x 28.5" / 69.2 x 52.3 x 72.4 cm
Weight 36.7 kg

In The Box

  • JBL PRX818XLFW 18" Self-Powered Extended Low-Frequency Subwoofer System
  • Power Cord


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  • Product: JBL PRX818XLFW 18" Self-Powered Extended Low-Frequency Subwoofer System
  • Manufacturer: JBL
  • Model: PRX818XLFW
  • RM Product #: 39058