Data Sheet

PRX818XLFW
Features:
< Maximum SPL Output 134 dB Peak
< 18” Differential Drive
®
low-frequency driver for
low-distortion and higher SPL
< 1500W highly efcient Class-D amplier
< Wireless remote control of its onboard
DSP EQ parameters via Wi-Fi. Control and
congure your show from anywhere.
< DSP input limiter circuit, crossover, dynamic
limiting, and component optimization
< Professional XLR-1/4” combination inputs and
XLR loop-through
< Top panel M20 pole mount socket for sub/
satellite conguration
< Injection molded handles with comfort rubber
grips for easy transport
< Lightweight poplar plywood cabinets made
structurally sound with tongue and groove
joints and protected by JBL’s tour proven
DuraFlex™ nish
Application:
< 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 efciency 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 amplier. 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™ nish. Grilles are made
from dent-resistant 16 gauge steel and handles
are made from light-weight glass-lled nylon for
added strength and durability.
< The amplier 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:
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
to pass audio.
Dynamic Control (Input): dbx Type IV™ limiter circuit
Internal Crossover Frequency: 100 Hz DSP
Loop out Crossover Frequency: 120 Hz analog 24 dB lter slope
Amplifier:
Design: Highly efcient Class-D amplier
Power Rating: 1500W
AC Power Input: 100V - 240V ~ 50/60 Hz
Speaker:
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™ nish
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 continually engages in research related to product improvement. Some materials, production methods and design renements are
introduced into existing products without notice as a routine expression of that philosophy. For this reason, any current JBL product
may differ in some respect from its published description, but will always equal or exceed the original design specications unless
otherwise stated.
18” Self-Powered
Extended Low Frequency
Subwoofer System