JBL PRX818XLFW 1500W, 18″ Active Subwoofer

JBL PRX818XLFW 1500W, 18″ Active Subwoofer

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SKU: JBLPRX818XLFW Category:

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, the 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


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)

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