18” Self-Powered Extended Low-Frequency Subwoofer System with Wi-Fi
The JBL PRX818XLF is a self-powered extended low-frequency subwoofer system. Featuring a JBL 18-inch woofer powered by a 1500-watt class-D amplifier, PRX818XLF delivers incredible output in a lightweight and compact form factor.

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 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

Applications:

The PRX815XLF 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 PRX815XLF performs with exceptional efficiency and control. The subs are stackable and light-weight, ensuring quick set-ups and tear-downs. Due to their rugged construction, they are perfect for AV rental inventories. With the 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. PRX800 subwoofers feature a standard M20 threaded pole cup that can accept most modern subwoofer-mounted speaker poles.

The PRX818XLF is a high performance self-powered subwoofer system with remote Wi-Fi control of onboard DSP EQ parameters. The PRX818XLF 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 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. All M10 suspension points are constructed from 14 gauge steel and have been tested with a yield-strength of 1000 lbs. each
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.


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
System Low Pass 80 Hz
Loop out Crossover Frequency 80Hz Digital 24db/octave Linkwitz-Riley Filter
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, birch-poplar mix
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 36.28 kg (80.0 lb)
Gross Weight 45.0 kg (100.0 lb)