JBL VRX932LA-1 User manual

SIMPLIFIED RIGGING
Ease of set up and takedown is critical
to ensuring high quality sound
reinforcement that meets both time and
cost restrictions. JBL’s exclusive
integral rigging hardware for the
VRX900's allows the enclosures to be
quickly and securely locked to one
another by simply swinging a hinged
bar into place and securing it with the
included quick release pins. The
optional VRX-AF or VRX-SMAF array
frame attaches to the rigging hardware
of each enclosure providing an easy to
use, elegant suspension system for
flown arrays. A second array frame
may be installed at the bottom of an
array for applications where the system
must be aimed down sharply.
VRX900 LINE ARRAY
Addressing the growing need for a small format professional sound system, JBL developed the VRX932LA and VRX928LA
Constant Curvature Line Arrays for sound rental companies, fixed installations, Musicians and DJ's looking for the ultimate in
performance and portability. Featuring the performance of high end line arrays in two compact 8 inch and 12 inch formats, including
a powered option in the 12 inch format. It is affordable, flexible and provides outstanding coverage and coherence. The VRX900
series shares components with the JBL VERTEC®Line Array Series, the worldwide touring industry standard. It is perfectly 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.
VRX900 SUBWOOFER
For applications requiring the sonic and practical advantages of integrating the subwoofers into the flying array JBL offers the
VRX918S and the VRX915S, two compact, high power, suspendable subwoofer systems using 15 inch and 18 inch Differential
Drive®woofers in front loaded vented enclosures. A powered 18 inch option, VRX918SP is also available. The VRX918S was
designed specifically for use in arrays with the VRX932LA, as the VRX915S complements perfectly 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.
DIFFERENTIAL DRIVE®WOOFERS
Sound reinforcement professionals constantly ask
for more power but less weight so JBL designed
the VRX’s drivers with much less weight than
comparable drivers and yet significantly increased
its power handling and output. Super lightweight
neodymium magnets positioned inside the voice
coil of each driver, a key feature of JBL’s patented
Differential Drive woofer design, reduce the
massive steel top plates, back plates and pole
pieces found in the 'magnetic circuits' of
conventional loudspeakers. The VRX’s dual voice
coil design delivers greater power handling while
maximizing the performance of each driver. An
integrated heat sink ensures excellent heat
dissipation and consistent, reliable performance.
Overall, the VRX weighs less, has more power
capacity, lowered distortion and lower power
compression than any comparable system.
DURABLE CONSTRUCTION
VRX900 Series enclosures are
constructed with premium quality
birch plywood. Coated in JBL's
rugged DuraFlex™ finish and heavily
braced the systems are extremely
durable, not to mention rigid and
resonance free. The heavy duty
steel grilles are internally lined
with acoustically transparent foam
to provide additional driver protection.
QUICK CONNECTIONS
The setup for VRX900 powered
speakers is fast and easy. Simply
connect up to three loudspeakers
together by looping the power and
audio cables from one unit to another.
One power cable and one source
cable can drive the entire system.
POWERED BY CROWN
Designed in cooperation with Crown International, the ultra compact, high-power JBL DrivePack®DPC-2 amplifier module features
Crown’s Class D digital power amplification circuitry. DBT (Dual-Bridged Technology™) directly links discrete amplifier channel outputs
to each voice-coil in the Differential Drive loudspeaker. The DPC-2 incorporates Crown’s BCA™ (Balanced Current Amplification) Class-I
circuitry with temperature compensated modulation and state of the art feedback circuitry. An extraordinarily efficient passive cooling
system eliminates noisy fans. The onboard DSP controls the system performance; protection, optimization, equalization and for the
VRX932LAP, the Array Configuration Selector.
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.
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.
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 very long
waveguide. This innovative technology provides unprecedented output coherence and stunning, clear
high-frequency sound quality regardless of the configuration.

STANDARD MODELS DESCRIPTION SPECIFICATION POWERED MODELS
CONSTANT CURVATURE LINE ARRAY
VRX932LA-1
VRX928LA
VRX918S
VRX915S
VRX915M
VRX932LAP
VRX918SP
© 2007 JBL Professional
8500 Balboa Boulevard
Northridge, CA 91329 USA
Visit us online at www.jblpro.com
VRX928LA
System type: 12 inch, two way, line-array speaker
Frequency Range (-10 dB): 57 Hz - 20 kHz
Frequency Response (±3 dB): 75 Hz - 20 kHz
Coverage pattern: 100° x 15° nominal (horizontal x vertical)
Power1(Continuous/Program/Peak): Passive: 800 W / 1600 W / 3200 W
Bi-amp LF: 800 W / 1600 W / 3200 W
Bi-amp HF: 75 W / 150 W / 300 W
Maximum System SPL2: Passive: 130 dB;
Bi-amp LF: 130 dB; Bi-amp HF: 139 dB
Components: LF: 2262H; HF: 3x 2407J (1.5 in voice coil)
Amplifier:
Dimensions (H x W x D): 349 mm x 597 mm x 376 mm
13.75 in x 23.5 in x 14.8 in
Weight: 21.8 kg (48 lb)
System type: 18 inch, bass-reflex subwoofer
Frequency Range (-10 dB): 31 Hz - 220 Hz
Frequency Response (±3 dB): 34 Hz - 220 Hz
Power1(Continuous/Program/Peak): 800 W / 1600 W / 3200 W
Maximum System SPL2: 130 dB
Components: LF: 2268H
Amplifier:
Dimensions (H x W x D): 508 mm x 597 mm x 749 mm
20.0 in x 23.5 in x 29.5 in
Weight: 37 kg (81 lb)
System type: 8 inch, two way, line-array speaker
Frequency Range (-10 dB): 70 Hz - 20 kHz
Frequency Response (±3 dB): 87 Hz - 19 kHz
Coverage pattern: 100° x 15° nominal (horizontal x vertical)
Power1(Continuous/Program/Peak): Passive: 400 W / 800 W / 1600W
Bi-amp LF: 400 W / 800 W / 1600W
Bi-amp HF: 30 W / 60 W / 120 W
Maximum System SPL2: Passive: 122 dB;
Bi-amp LF: 122 dB; Bi-amp HF: 128 dB
Components: LF: 2168H-1; HF: 2x 2414H (1.0 in voice coil)
Dimensions (H x W x D): 230 mm x 419 mm x 267 mm
9.0 in x 16.5 in x 10.5 in
Weight: 12.7 kg (28 lb)
System type: 15 inch, bass-reflex subwoofer
Frequency Range (-10 dB): 35 Hz - 250 Hz
Frequency Response (±3 dB): 40 Hz - 250 Hz
Power1(Continuous/Program/Peak): 800 W / 1600 W / 3200 W
Maximum System SPL2: 126 dB
Components: LF: 2265G-1
Dimensions (H x W x D): 496 mm x 420 mm x 597 mm
19.5 in x 16.5 in x 23.5 in
Weight: 26 kg (57 lb)
1 IEC filtered noise with 6 dB crest factor, 2 hours.
2 Calculated, based on power rating and sensitivity.
3 Calculated, based on sensitivity on horn with Q of 6.3, averaged in the 2 kHz octave band.
System type: 15 inch, two way, stage monitor
Frequency Range (-10 dB): 60 Hz - 20 kHz
Frequency Response (±3 dB): 70 Hz - 20 kHz
Coverage pattern: 50° x 90° nominal (horizontal x vertical)
Power1(Continuous/Program/Peak): Passive: 800 W / 1600 W / 3200W
Bi-amp LF: 800 W / 1600 W / 3200W
Bi-amp HF: 75 W / 150 W / 300 W
Maximum System SPL2: Passive: 133 dB;
Bi-amp LF: 131 dB; Bi-amp HF3: 136 dB
Components: LF: 2265H; HF: 2452H (4.0 in voice coil)
Dimensions (H x W x D): 629 mm x 432 mm x 324 mm
(375 mm stage height)
24.75 in x 17 in x 12.75 in
(14.75 in stage height)
Weight: 21 kg (46 lb)
CAT VRX900 07 09/07
POLE MOUNT
To create a small, compact non-flying system, the VRX may be mounted on a tripod. For greater power and low-frequency extension,
one or two VRX may be pole-mounted over their companion subwoofer, such as JBL’s SRX718S, VRX918S/SP or VRX915S. JBL’s
dual angle pole sockets allow greater flexibility in aiming the speaker directly to the listeners. Unwanted acoustic reflections are
reduced and overall system performance is improved.
CONFIGURATIONS
GROUND STACK
For reaching bleacher and stadium seating from ground level, the VRX’s ingenious cabinet design allows it to be ground stacked in
configurations of up to 4 enclosures delivering all of the power, clarity and control of a full flown line array system without the
additional labor and expense.
FLY YOUR VRX900 ARRAY
VRX900 line arrays and subwoofers may be suspended using the VRX-AF and VRX-SMAF array frame. For fixed installations, 10mm
forged eyebolts may also be used. See the VRX900 User Guide for details. www.jblpro.com
SINGLE CABINET
When configured for smaller venues, or musicians working alone, the compact size, portability, light weight and stunning performance of
the VRX allow it to be used as a single cabinet two-way utility speaker system that can be conveniently mounted on a tripod.
VRX932LA-1VRX915SVRX918SVRX915M
VRX932LAPVRX918SP
1750W Peak, 875W Continuous
349 mm x 597 mm x 444 mm
13.75 in x 23.5 in x 17.5 in
24 kg (52 lb)
1600W Peak, 800W Continuous
40 kg (89 lb)
with JBL DrivePack®DPC-2
Patents: 5,748,760 6,112,847 6,394,223
6,847,726 6,768,806 6,774,510
D483743 D483744