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)
