JBL PRX818XLFW 18" Powered Subwoofer

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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

Specs

PA Speaker

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

Drivers

LF Driver

1 x 18" / 45.7 cm Woofer

Performance

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)

Connectivity

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

Power

AC Input Power

100 to 240 VAC, 50 / 60 Hz

Physical

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