JBL PRX818XLFW
18” Self-Powered Extended Low-Frequency Subwoofer System

OUR PART #  PRX818XLFW

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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.

A key asset of Harman's Connected PA App - a fully-integrated, self-aware, and comprehensive live sound ecosystem controlled by one central app!

JBL PRX818XLFW Applications:

  • The PRX818XLFW extended low frequency subwooferwasdesigned 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 ascalable, 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 PRXfull-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. ThePRX818XLFW is comprised of a powerful 2278G Differential Drive® dualvoice-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 of25 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 provenDuraFlex™ 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 viathe level control knob.

JBL PRX818XLFW 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 50 ms 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 powertest—ensures reliable performance

JBL PRX818XLFW Specifications:

  • 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)

JBL PRX818XLFW
18” Self-Powered Extended Low-Frequency Subwoofer System

OUR PART #  PRX818XLFW

Product Information:

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.

A key asset of Harman's Connected PA App - a fully-integrated, self-aware, and comprehensive live sound ecosystem controlled by one central app!

JBL PRX818XLFW Applications:

  • The PRX818XLFW extended low frequency subwooferwasdesigned 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 ascalable, 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 PRXfull-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. ThePRX818XLFW is comprised of a powerful 2278G Differential Drive® dualvoice-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 of25 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 provenDuraFlex™ 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 viathe level control knob.

JBL PRX818XLFW 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 50 ms 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 powertest—ensures reliable performance

JBL PRX818XLFW Specifications:

  • 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)
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