JBL Vrx932la1 Manual

SPECIFICATIONS
VRX915S - 15, BASS-REFLEX SUBWOOFER
System Type:15"bass reflex subwoofer
Frequency Range (-10 dB): 35Hz -250Hz
Frequency Response (±3 dB): 40Hz - 250Hz
Recommended Hi-Pass Filter: HP: Butterworth 24 dB/octave, 45 Hz LP: Linkwitz-Riley 48 dB/octave, 80 – 120Hz
Power Rating
1:
(Continuous  / Program / Peak) 800 W / 1600 W / 3200W
Recommended EQ: +2dB at 45Hz, Q: 2.5
Maximum SPL
2: 126 dB SPL
Sensitivity (1 W @ 1m) 91 dB SPL
LF Driver: 1 x JBL 2265G-1, 250 mm (15 in) Differential Drive ®...

INTRODUCTION TO THE VRX915M
The VRX915M is a dedicated, compact and lightweight, 15, two way tourin\
g-class floor monitor, with only 
a 375 mm (14.75 in) stage height and JBL’s latest neodymium-magnet transducers.    
A 380 mm (15 in) 2265H patented Differential Drive
®woofer handles 800 watts (continuous) and delivers 
accurate and precise low frequency reproduction. The 2452H 102 mm (4 in) voice-coil compression driver is 
coupled to a 50° x 90° aluminum horn to provide smooth and clear high frequency...

SPECIFICATIONS
VRX915M - 15” TWO-WAY STAGE MONITOR
System Type: 15 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
Crossover Modes: Passive / Bi-amp
Crossover Frequency: 1.1 kHz
Power Rating: Passive Full-Range 800 W / 1600 W / 3200 W, 2 hrs
1
(Continuous / Program / Peak) Bi-amp LF: 800 W / 1600 W / 3200 W, 2 hrs1
Bi-amp HF: 75 W / 150 W / 300 W, 2 hrs1
Maximum SPL:127 dB SPL continuous (133 dB SPL peak)2...

AMPLITUDE SHADING
AMPLITUDE SHADING
Amplitude shading is a technique that allows the coverage pattern of a l\
oudspeaker array to be shaped by
adjusting the relative acoustic output of some of the devices in the arr\
ay. Most often, array shading involves 
only the mid and high-frequency sections of the array. In a simple system consisting of three VRX932LA-1/
VRX928LAs, the lower speaker (which covers the nearest listeners) may \
have its high-frequency output
reduced. At the same time, the upper...

BI-AMPLIFIED SYSTEM
In a bi-amplified system, array shading is accomplished by connecting se\
parate amplifier channels to the HF 
section of each VRX932LA-1/VRX928LA. In larger arrays, a single amplifie\
r channel may be used for two 
adjacent loudspeakers. Array shading is then accomplished by adjusting the gain of the HF ampli\
fier channels.
For extremely precise control over system performance, it may also be de\
sirable to dedicate an individual 
system controller output to each HF amplifier...

DEPLOYING THE SYSTEM
The VRX932LA-1/VRX928LA is a flexible speaker system that can be deployed in ground-supported or\
 
suspended applications. The following information will help you set up your VRX932LA-1/VRX928LA
system safely and effectively.
POLE AND TRIPOD SAFETY WARNINGS!
When using stands or poles, be sure to observe the following precautions\
:• Check the stand or pole specification to be certain the device is design\
ed to support the weight of the speaker. Observe all safety precautions...

DUAL VRX932LA-1/VRX928LA
Unlike most conventional speakers, the VRX932LA-1/
VRX928LA is designed so that a pair of speakers may be safely
mounted onto a pole or tripod stand. For most applications, the
forward socket of the dual angle pole socket will be used. This
will tilt the lower of the two speakers at a 15° down-angle (providing
coverage of the near listeners) while the upper speaker will face
straight out (covering the more distant areas). Ideally, the listeners
should not be able to see either...

Correct use of all rigging hardware is required for secure system suspen\
sion. Careful calculations should 
always be performed to ensure that all components are used within their \
Maximum Load Limit before the array
is suspended. Never exceed the maximum recommended load ratings. Prior t\
o suspending the system, an
expert, trained and experienced in flying speaker systems should be cons\
ulted. Research and understand the
codes, practices, and requirements in the venues where you intend to ope\
rate...

INSTALLING THE ARRAY FRAME
The array frame is attached to the internal rigging of the VRX900 system\
 using the provided Quick Release Pins
WARNING:Do not use any substitute for these pins. 
1. Begin by attaching the two side arms (A) to either side of the cent\
er frame. Use a pair of the provided Quick
Release Pins (B)* to attach the arms to the frame. Note: Side arms sho\
uld be attached
with the rubber bumper facing up and away from the center
frame. The center frame is installed with the rubber...

GROUND-STACKED, UPWARD FIRING ARRAYS
Applications such as covering stadium bleachers from the playing field m\
ay be addressed by installing the
VRX932LA-AF/VRX-AF/VRX-SMAF array frame to the bottom of the array.
Up to four VRX932LA-1/VRX928LA loudspeakers may be locked together and
ground stacked using the VRX array frame kit, as shown. 
WARNING:Do not ground stack more than four VRX932LA-1/VRX928LA
loudspeakers in one array. 
When ground stacking VRX900LA loudspeakers, use the VRX932LA-AF/...