JBL VRX918S User Manual
Professional Series
Key Features:
䉴
Integral rigging hardware for simple
connection of VRX932LA line-arrays
and optional array frame.
䉴
18 inch, 2268H Differential Drive
®
woofer for extended low-frequency
output
䉴
Large port area for reduced
distortion
䉴
20 mm threaded pole socket for
solid, secure satellite speaker
mounting
Applications:
䉴
Live performance systems
䉴
Mobile and fixed DJ systems
䉴
Sound system rental and tour
The VRX918S is a compact, high
power suspendable subwoofer system
containing a 2268H neodymium
magnet, patented Differential Drive®,
18" woofer in a front-loaded, vented
enclosure. The VRX918S was designed
specifically for use in arrays with the
VRX932LA Line Array speaker and
VRX-AF Array Frame. In addition it
may also be used in arrays consisting
entirely of VRX918S subwoofers.
The system offers complete input
connection flexibility for compatibility
with a variety of cabling schemes. A
recessed, external switch allows
selection of either contacts +1/-1 or
+2/-2.
Equally at home in ground stacked
applications, the VRX918S is equipped
with a top-mounted, threaded, 20 mm
socket that can receive the optional
SS4-BK pole. This adjustable height
pole can be used to mount speakers
equipped with standard 35 mm pole
sockets and weighing up to 50 kg (100
lb). The threaded socket minimizes
buzzing and rattling and assures that
the pole will be secure and straight.
The enclosure is constructed of top
quality birch plywood, coated in JBL’s
rugged DuraFlex™ finish and is
heavily braced to maximize lowfrequency performance. The attractive
CNC-machined, 16-gauge steel grille is
internally lined with acoustically
transparent foam to provide additional
driver protection and give a very
professional appearance. The rear of
the enclosure is fitted with T-nuts
which may be used to attach the
optional WK-4 caster kit.
The VRX918S is manufactured and sold under U.S. patents
5,748,760 and 6,847,726.
18" High Power
VRX918S
Shown with VRX932LA
and optional VRX-AF
Array Frame
Flying Subwoofer
Specifications:
Frequency Range (-10 dB): 31 Hz – 220 Hz
Frequency Response (±3 dB): 34 Hz – 220 Hz
Recommended Crossover Frequencies: 80 Hz, 24 dB / octave HPF
1
40 Hz to 120 Hz pink noise with 6 dB crest factor.
2
Calculated based on power rating and sensitivity.
JBL continually engages in research related to product improvement. Some materials, production methods and design
refinements 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 specifications unless otherwise stated.
Input Connection Modes: Switchable, +1/-1 or +2/-2
(Continuous1/ Program / Peak): 800 W / 1600 W / 3200 W
Sensitivity (1w @ 1m): 95 dB SPL
Suspension / Mounting: Optional VRX-AF line array frame kit or M-10 eyebolt
Dimensions (H x W x D): 508 mm x 597 mm x 749 mm
System Type: 18" bass-reflex subwoofer
Power Rating
Maximum SPL2: 130 dB SPL peak
LF Driver: 1 x JBL 2268H 457 mm (18 in) Differential Drive
Nominal Impedance: 8 ohms
Active Tunings: dbx DriveRack, all models. Settings available at
Mounting: Top mounted M20 threaded socket for optional SS4-
Enclosure: Rectangular, 18 mm, 13-ply birch plywood
Input Connectors: Neutrik®Speakon®NL-4 (x2)
Net Weight: 37 kg (81 lb)
Optional Accessories: SRX718S-CVR: Pull-over padded cover
80 Hz, 24 dB / octave LPF
woofer
www.jblpro.com
BK pole
kit
Finish: Black DuraFlex finish
Grille: Powder coated, black, 16-gauge perforated steel with
acoustical transparent charcoal foam backing.
(20.0 in x 23.5 in x 29.5 in)
SS4-BK: Adjustable, heavy-duty pole, M20 thread to
35 mm
WK-4: Caster kit
VRX-AF: Array Frame Kit
M-10 eyebolt kit
䉴 VRX918S 18" High Power Flying Subwoofer
Block Diagram Frequency Response
Dimensions
8 mm
(0.3 in)
749 mm
(29.5 in)
508 mm
(20.0 in)
56 mm
(2.2 in)
45 mm
(1.8 in)
597 mm
(23.5 in)
489 mm
(19.25 in)
508 mm
(20.0 in)
254 mm
(10.0 in)
51 mm
(2.0 in)
457 mm
(18.0 in)
406 mm
(16.0 in)
610 mm
(24.0 in)
235 mm
(9.25 in)
546 mm
(21.5 in)
464 mm
(18.25 in)
298 mm
(11.75 in)
60 mm
(2.37 in)
44 mm
(1.75 in)
38 mm
(1.5 in)
80 mm
(3.13 in)
Dimensions in mm (in)
JBL Professional
8500 Balboa Boulevard, P.O. Box 2200
Northridge, California 91329 U.S.A.
A Harman International Company
© Copyright 2005 JBL Professional
SS VRX918S
CRP 5M
11/05
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