JBL PRX818XLFW 18" Self-Powered Extended Low-Frequency Subwoofer
JBL PRX818XLFW 18" Self-Powered Extended Low-Frequency Subwoofer
JBL PRX818XLFW 18" Self-Powered Extended Low-Frequency Subwoofer
JBL PRX818XLFW 18" Self-Powered Extended Low-Frequency Subwoofer
JBL PRX818XLFW 18" Self-Powered Extended Low-Frequency Subwoofer
JBL PRX818XLFW 18" Self-Powered Extended Low-Frequency Subwoofer
JBL PRX818XLFW 18" Self-Powered Extended Low-Frequency Subwoofer
JBL PRX818XLFW 18" Self-Powered Extended Low-Frequency Subwoofer

JBL PRX818XLFW 18" Self-Powered Extended Low-Frequency Subwoofer

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JBL PRX818XLFW 18" Self-Powered Extended Low-Frequency Subwoofer

JBL PRX818XLFW 18" Self-Powered Extended Low-Frequency Subwoofer

$1,395.00 $1,311.99
JBL PRX818XLFW 18" Self-Powered Extended Low-Frequency Subwoofer
JBL PRX818XLFW 18" Self-Powered Extended Low-Frequency Subwoofer
JBL PRX818XLFW 18" Self-Powered Extended Low-Frequency Subwoofer
JBL PRX818XLFW 18" Self-Powered Extended Low-Frequency Subwoofer

JBL PRX818XLFW 18" Self-Powered Extended Low-Frequency Subwoofer

$1,395.00 $1,311.99

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JBL PRX818XLFW 18" Self-Powered Extended Low-Frequency Subwoofer

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.
Compatible with HARMAN Connected PA

The PRX800W series integrates embedded ioSYS technology which enables easier setup and control when used with the HARMAN Connected PA app and compatible products. Connected PA delivers seamless plug-and-play operation with a variety of HARMAN equipment and enables you to control your entire live sound system with one app. Products within the Connected PA system self-identify and retain presets for effortless setup, and setup wizards help you quickly optimize speaker levels, configuration settings and EQ. Current products with embedded ioSYS technology and HARMAN Connected PA compatibility include the Ui24R mixer, JBL PRX800W loudspeakers, dbx Di1 direct boxes, and AKG P5i microphones. Learn more about HARMAN Connected PA.
  • 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
  • The PRX818XLFW extended low frequency subwoofer was designed and engineered to provide sub bass frequencies with accuracy and power. Used as a single sub in a sub/sat system or in multiples as part of a scalable, large format sound reinforcement system, the PRX818XLFW performs with exceptional efficiency and control. The subs are stackable and light-weight ensuring quick set-ups and tear-downs. And due to their rugged construction are perfect for AV rental inventories. With a pole receptacle (that accepts a SS4-BK or SS4-BK24) on the top panel and integrated stereo pass-thru this is the most powerful low-frequency complement to the PRX full-range systems. The addition of a polarity reverse option further enables system optimization.
  • The PRX818XLFW is a high performance self-powered subwoofer system with remote Wi-Fi control of onboard DSP EQ parameters. The PRX818XLFW is comprised of a powerful 2278G Differential Drive® dual voice-coil and magnetic gap, woofer driven by a 1500 Watt Class-D power amplifier. Sophisticated DSP is at the core of a fully featured input section, providing user selectable cross-over functionality, polarity optimization, protection, dynamic limiting and discrete component optimization.
  • All PRX800 cabinets are built from a combination of 25 mm (on the top and bottom for added rigidity) and 18 mm, strong, light-weight poplar plywood made structurally sound with tongue and groove joints. All PRX800 Series cabinets are protected by JBL’s tour proven DuraFlex™ finish. Grilles are made from dent-resistant 16 gauge steel and handles are made from light-weight glass-filled nylon for added strength and durability.
  • The amplifier input panel offers stereo inputs with XLR or ¼ inch jack compatibility. A user selectable crossover ensures a smooth transition to full-range system connected to the stereo outputs. Signal present and limiter lights indicate the system status and assist in setting the optimum level via the level control knob.
 
  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)
  Gross Weight 45.0 kg (100.0 lb)
  • Powerful Performance: The JBL PRX818XLFW delivers deep, punchy bass with its 18" low-frequency driver and 1500-watt Class-D amplifier, making it ideal for live events, DJs, and venues.
  • Extended Low Frequency: Specifically designed for extended low-frequency output, this subwoofer adds richness and clarity to any sound system.
  • Built-In Wi-Fi: Control and fine-tune your sound remotely with JBL’s PRX Connect app for added convenience and flexibility.
  • Durable Build: Road-tested enclosure with tour-grade features ensures long-lasting performance in any setting.
  • Seamless Integration: Perfectly complements the PRX800 series, providing a cohesive and professional sound system setup.

Q: What is the JBL PRX818XLFW?
A: The JBL PRX818XLFW is an 18" self-powered extended low-frequency subwoofer designed for professional audio performance, delivering deep, powerful bass with advanced DSP and wireless control.

Q: What is the power output?
A: It delivers up to 1500W of Class-D amplification, ensuring high efficiency and robust sound.

Q: What makes this subwoofer unique?
A: It features JBL's patented Differential Drive® technology for reduced weight and higher output, as well as wireless control via the JBL Pro Connect app.

Q: Is it portable and durable?
A: Yes, it has a compact, road-ready design with durable enclosures, making it ideal for gigs, events, and permanent installations.

Q: What are its main applications?
A: Perfect for live performances, DJ setups, and fixed installations requiring deep, high-impact bass

  • Regular Cleaning: Use a soft, dry cloth to remove dust from the enclosure and vents. Avoid liquids.
  • Ventilation: Ensure proper airflow around the subwoofer to prevent overheating.
  • Cable Check: Inspect power and audio cables for wear and secure connections.
  • Firmware Updates: Regularly check and update firmware via the JBL app to optimize performance.
  • Safe Storage: Store in a dry, temperature-controlled environment when not in use.
  • Power Surge Protection: Use a surge protector to safeguard against electrical spikes.
  • Avoid Overloading: Operate within the recommended input levels to prevent distortion or damage.

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