JBL VRX932LA User Manual

VRX932LA
User’s Guide
Part Number: 353551-001
Introduction to the VRX932LA
Product Specifications
Amplitude Shading
System Processor Tunings
Deploying the System
3
4
5-6
7
8-11
12
CONTENTS
Important Safety Instructions
2
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with a dry cloth.
7. Do not block any ventilation openings. Install in accordance with manufac­turer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus that produce heat.
9. Only use attachments / accessories specified by the manufacturer.
10. Use only with a cart, stand, bracket, or table specified by the manufacturer or sold with the appara­tus. When a cart is used, use caution when moving the cart / apparatus combination to avoid injury from tip-over.
11. Refer all servicing to qualified service personnel. Servicing is required when an apparatus has been damaged in any way, such as power-cord or plug is damaged, liquid has been spilled, or objects have fallen into the appara­tus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
12. To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.
13. Hearing damage, prolonged exposure to excessive SPL, the loudspeaker is easily capable of generating sound pressure levels (SPL) sufficient to cause permanent hearing damage to performers, production crew and audience members. Caution should be taken to avoid prolonged exposure to SPL in excess of 90 dB.
The VRX932LA loudspeaker covered by this manual is not intended for fixed installation in outdoor or high moisture environments. Moisture can damage the speaker cone and surround and cause corrosion of electrical contacts and metal parts. Avoid exposing the speakers to direct moisture. Keep speakers out of extended or intense direct sunlight. The driver sus­pension will prematurely dry out and finished surfaces may be degraded by long-term exposure to intense ultra-violet (UV) light.
The VRX932LA speaker can generate considerable energy. When placed on a slippery surface such as polished wood or linoleum, the speaker may move due to its acoustical energy output. Precautions should be taken to assure that the speaker does not fall off a stage or table on which it is placed.
INTRODUCTION TO THE VRX932LA
The VRX932LA is a two-way, line-array loudspeaker system intended for use in arrays of up to six enclosures. Three high-frequency drivers are mounted to the Constant Curvature waveguide which is designed so that multi­ple enclosures may be arrayed with no discontinuity in the vertical coverage pattern. As a result, the array will behave in much the same way as would a single loudspeaker. Array coverage may be adjusted by means of the Array Configuration Selector (ACS), a feature that provides amplitude shading (see page 6) when the system is used in passive mode. Integral rigging hardware, a dual angle pole socket and an accessory array frame provide for a variety of mounting and suspension options.
3
Dimensional Drawings
343 mm
13.5 in
376 mm
14.8 in
597 mm
23.5 in
1325 mm
52.2 in
15º
SPECIFICATIONS
VRX932LA - 12¨, two-way, line-array loudspeaker system
System Type: 12" two-way, line array loudspeaker system Frequency Range (-10 dB): 57 Hz - 20 kHz Frequency Response (±3 dB): 75 Hz - 20 kHz Coverage Pattern: 100º x 15º nominal (horizontal x vertical) Crossover Modes: Bi-amp / passive, externally switchable Crossover Frequency: 1.2 kHz Power Rating Passive: 800 W / 1600 W / 3200 W (Continuous¹/ Program/ Peak): Bi-amp LF: 800 W / 1600 W / 3200 W
Bi-amp HF: 75 W / 150 W / 300 W
System Maximum SPL²: 130 dB SPL peak (passive)
LF: 130 dB HF: 139 dB
System Sensitivity (1w @ 1m): 95 dB SPL (passive mode)
LF: 95 dB
HF: 114 dB³ LF Driver: 1 x JBL 2262H 305 mm (12 in) Differential Drive® woofer with neodymium-magnet and dual voice-coils HF Driver: 3 x JBL 2407J, 25.4 mm (1 in) voice-coil, neodymium magnet compression driver Nominal Impedance: Passive:8 ohm
Bi-amp LF: 8 ohms
Bi-amp HF: 8 ohms Active Tunings: Tunings available at www.jblpro.com Enclosure: 18 mm, 11-ply birch plywood. Suspension / Mounting: Suspension requires optional VRX932LA-AF line-array frame kit / Dual angle 35 mm pole socket Finish: Black DuraFlex™ finish Grille: Powder coated, black, 16-gauge perforated steel with acoustically transparent foam Input Connectors: Neutrik ® Speakon® NL-4 (x2) Dimensions (H x W x D): 349 mm x 597 mm x 381 mm (13.75 in x 23.5 in x 15.0 in) Net Weight: 21.8 kg (48 lb) Optional Accessories: VRX932LA-AF: Suspension array frame
SS2-BK: Tripod speaker stand
SS3-BK: Satellite speaker pole, 41 in (1041 mm)
SS4-BK: Adjustable satellite speaker pole to be used with the SRX718S only.
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Functional Block Diagram
¹ IEC filtered noise with 6 dB creat factor, 2 hrs / ² “Frequency Range” and “Frequency Response” are based on half-space conditions / ³ HF driver sensitivity is based on a measurements averaged between 1.5KHz - 16KHz
SHORT THROW
MID THROW
LONG THROW
1+ 1-
2-
2+
1+ 1-
2-
2+
NL4
INPUT
NL4
INPUT
HPF
LPF
PASSIVE
MODE
-3 dB
0 dB
+3 dB
+
+
+
+
-
-
-
-
1+ 1-
2-
2+
1+ 1-
2-
2+
BI-AMP
MODE
NL4
INPUT
NL4
INPUT
+
+
+
+
-
-
-
-
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