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.

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.

MPN: PRX818XLFW
UPC: 691991005398

• 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)
  
• Gross Weight: 45.0 kg (100.0 lb)