JBL PRX818XLFW 18” Self-Powered Extended Low-Frequency Subwoofer with Wi-Fi

JBL PRX818XLFW 18” Self-Powered Extended Low-Frequency Subwoofer with Wi-Fi
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JBL PRX818XLFW 18” Self-Powered Extended Low-Frequency Subwoofer with Wi-Fi

18” Self-Powered Extended Low-Frequency Subwoofer System with Wi-Fi

The JBL PRX818XLFW is a self-powered extended low-frequency subwoofer system. Featuring a JBL 18-inch woofer powered by a 1500-watt class-D amplifier, PRX818XLFW delivers incredible output in a lightweight and compact form factor.

The JBL PRX800W series, including the JBL PRX818XLFW, is the most advanced PA in its class. Wi-Fi technology and sophisticated DSP give you complete control over system tuning and performance via the free PRX Connect app. The JBL PRX818XLFW features an efficient 1500-watt class-D amplifier and patented JBL Differential Drive® technology provide best-in-class power and reduced weight. And the rugged all-wood cabinets feature a redesigned input panel and universal power supply for easy, reliable operation worldwide. Designed to deliver legendary JBL sound for bands, DJs and more, PRX800W represents the next generation in smart live sound reinforcement.



* Built-in Wi-Fi for wireless control of your system from anywhere in the venue

Free PRX Connect mobile app for iOS and Android provides wireless control over volume levels, 8-band parametric EQ and up to 50ms of speaker delay to fine-tune your sound

Class-leading 1500-watt amplifier delivers ample power to fill your venue

JBL Differential Drive® transducers for higher SPL in a lightweight design

Next-generation JBL neodymium compression drivers

Redesigned Crown input technology, including XLR, 1/4” and RCA inputs plus XLR loop-through

Intelligent variable-speed fan activates only when needed to reduce noise

Updated tuning delivers flat frequency response and smooth off-axis behavior

Durable wooden cabinets, tour-proven DuraFlex™ finish and dent-resistant 16-gauge grilles

Universal power supply for worldwide compatibility

dbx Type IV™ limiting ensures clear, accurate sound at high volumes

Brutal testing regimen—including the famous JBL 100-hour power test—ensures reliable performance


System Type Self Powered 18” subwoofer

Maximum SPL Output 134 dB peak

Frequency Range (-10 dB) 30 Hz - 103 Hz

Frequency Response (±3 dB) 35 Hz – 87 Hz

Input Connectors Two Balanced female XLR/ 1/4” combo connectors

Input Impedance 20K Ohms (balanced)

Signal Indicators 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

Dynamic Control (Input) dbx Type IV™ limiter circuit

Internal Crossover Frequency 100 Hz DSP

Loop out Crossover Frequency 120 Hz analog 24 dB filter slope

Design Highly efficient Class-D amplifier

Power Rating 1500W

AC Power Input 100V - 240V ~ 50/60 Hz

LF Driver 1 x JBL 2278G 460 mm (18 in) woofer

Enclosure Rectangular, 18 mm, plywood

Transport 2 x injection molded handles with backing cup

Finish Obsidian DuraFlex™ finish

Grille Powder coated, Obsidian, 16 gauge perforated steel with acoustical transparent black cloth backing.


Dimensions (H x W x D) 692 mm x 523 mm x 724 mm  (27.26 in x 20.6 in x 28.5 in)

Net Weight 36.8 kg (81 lb)

Gross Weight 45.0 kg (100.0 lb)

Approximate Weight 45.0kg

* This product does not qualify for free shipping.

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