JBL V R X 9 2 8 L A Speaker User Manual


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VRX900 Line Array
Addressing the growing need for a small for
mat professional sound system, JBL developed the VRX932LA and VRX928LA Constant
Cur
vature Line Arrays for sound rental companies, fixed installations, Musicians and DJ's looking for the ultimate in per
for
mance and
portability. Featuring the performance of high end line arrays in two compact 8 inch and 12 inch formats. It is affordable, flexible and
provides outstanding coverage and coherence. The VRX900 series shares components with the JBL V
ERTEC
®
Line Array Series, the
worldwide touring industr
y standard. It is per
fectly suited for use in smaller venues and small to medium sound reinforcement projects.
Delivering extraordinary power handling, clarity and flexibility, the VRX900 Line Array speakers feature the hallmark of all JBL products
- Stunning, legendary JBL sound.
Constant Curvature Array
The challenge in designing a world-class line array is to create a
controlled, coherent coverage pattern regardless of the number of
cabinets used in the array. JBL’s Constant Curvature Array Design does
that and more. The VRX waveguide mounts three compression drivers on
a continuous arc enabling them to work together acoustically as if they
were a single driver, while dramatically increasing the power handling
and acoustic output when compared to a single driver system.
Additional enclosures can be added creating an uninterrupted,
continuous arc with all of the drivers working together seamlessly as if
they were one driver on a ver
y long waveguide. This innovative
technology provides unprecedented output coherence and stunning,
clear high-frequency sound quality regardless of the configuration.
Amplitude Shading
Covering a venue with a smooth, consistent sound field is key
to the success of any professional sound reinforcement project. The VRX
accomplishes this with JBL’s Array Configuration Selector, a convenient
series of switches on each enclosure that controls the output of each
high-frequency section in the array. With the VRX’s amplitude shading
you can set the upper enclosures in an array configuration to deliver
more output for reaching a distant balcony while the lower enclosures
can be ‘shaded back’ with less output for the front rows of the venue.
Each section of the venue can be fine tuned for a balanced, seamless
overall coverage pattern.
VRX900 Subwoofer
For applications requiring the sonic and practical advantages of integrating the subwoofers into the flying array JBL of
fers
the VRX918S and the VRX915S, two compact, high power, suspendable subwoofer systems using 15 inch and 18 inch
Dif
ferential Drive
®
woofers in front loaded vented enclosures. The VRX918S was designed specifically for use in arrays
with the VRX932LA, as the VRX915S complements per
fectly the VRX928LA. Both subwoofers are equipped with a top-
mounted, threaded, M20 socket that can receive the optional SS4-BK adjustable pole.
VRX915M Stage Monitor
The VRX915M is a dedicated, compact and lightweight 15 inch touring-class floor monitor. Its symmetrical designed
enclosure enables convenient left-right orientation. With its low stage height and JBL's latest neodymium-magnet
transducers, it delivers world class performance in the most demanding applications.
Array Tool
The VRX932LA and VRX928LA array tools provide visual help for the user to better understand and deploy a VRX900 Line
Array. It can be found here: http://www.jblpro.com/vrx/ARRAYTOOL.HTML . Acoustic performance can be quickly assessed
by simply creating a two dimensional view of the environment the VRX900 system would be used in. The effect of adding
systems to the array and adjustments of the Array Configuration Selector can be quickly analyzed.
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