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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.


• 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

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