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JBL PRX818XLFW 18" Powered Subwoofer

JBL PRX818XLFW 18" Powered Subwoofer

JBL PRX818XLFW 18" Powered Subwoofer

JBL PRX818XLFW 18" Powered Subwoofer Overview

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

The JBL PRX818XLF is a self-powered extended low-frequency subwoofer system. Featuring a JBL 18-inch woofer powered by a 1500-watt class-D amplifier, PRX818XLF delivers incredible output in a lightweight and compact form factor.

 Key Features

  • 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


PA Speaker

Configuration Active Subwoofer
Total Power Capacity 1500 W
Amplifier Class Class-D


LF Driver 1 x 18" / 45.7 cm Woofer


Frequency Range 30 Hz to 103 Hz -10 dB
Frequency Response 35 Hz to 87 Hz ±3 dB
Maximum SPL 134 dB (Peak)
I/O Impedance Input:

20 Kilohms (Balanced)


Audio I/O 2 x Combo XLR-1/4" TRS Balanced Input

Signal Processing

Crossover 100 Hz (Internal)

120 Hz, 24 dB/Octave (Thru Output)
Dynamic Processing Limiter


AC Input Power 100 to 240 VAC, 50 / 60 Hz 


Handles 2
Construction Material Plywood
Dimensions 27.3 x 20.6 x 28.5" / 69.2 x 52.3 x 72.4 cm
Weight 81 lb / 36.7 kg

Packaging Info

Package Weight 97.6 lb
Box Dimensions (LxWxH) 33 x 29.5 x 25.5"


Spec Sheet



This is a fantastic place better than Amazon for prices, service and a shoulder l should support for tech, audio and av solutions.

David Fraser, Google CET reviews

Friendly and accommodating staff. Great products. They offer discounts to churches (there’s a minimum purchase value). Really does cater to all your audiovisual needs. I’ll surely shop there again.

Shamillia Rock, Google CET Reviews

Quality items at affordable prices with knowledgeable and helpful staff. If what you are looking for is available here it doesn't make sense importing through a freight forwarder.

Mark Buckmire, Google CET Reviews

I've bought from them in the past on a few occasions and it's always been a good experience. I recently made a purchase and happened to have a manufacturer issue. CET immediately replaced the item with the least inconvenience to myself. When buying these types of equipment, it really is best to use a local and reliable supplier and CET is hands down my choice.Plus the staff are always helpful and respectable. Good job folks.

Raees Rahim, Facebook CET Reviews
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