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JBL VRX932LA manual

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Table of contents for the manual

  • Page 1

    VRX932LA User’ s Guide Part Number: 353551-001[...]

  • Page 2

    Intr oduction to the VRX932LA Pr oduct Specifications Amplitude Shading System Pr ocessor T unings Deplo ying the System JBL Pr ofessional W arranty and Contact Inf ormation 3 4 5-6 7 8-11 12 CONTENTS Important Safety Instructions 2 1. Read these instructions. 2. K eep these instructions. 3. Heed all warnings. 4. Follo w all instructions. 5. Do not[...]

  • Page 3

    INTR ODUCTION T O THE VRX932LA The VRX932LA is a two-wa y , line-arra y loudspeaker system intended f or use in arra ys of up to six enclosures. Three high-frequency drivers are mounted to the Constant Curvature wa veguide which is designed so that multi- ple enclosures ma y be arra yed with no discontinuity in the v er tical cov erage patter n. As[...]

  • Page 4

    SPECIFICA TIONS VRX932LA - 12¨, two-wa y , line-array loudspeaker system System T ype: 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 Crossove[...]

  • Page 5

    5 AMPLITUDE SHADING Amplitude Shading Amplitude shading is a technique that allows the co v erage pattern of a loudspeaker arra y to be shaped by adjusting the relative acoustic output of some of the de vices in the arra y . Most often, arra y shading inv olves only the mid and high-frequency sections of the arra y . In a simple system consisting o[...]

  • Page 6

    6 Bi-Amplified System In a bi-amplified system, arra y shading is accomplished by connecting separate amplifier channels to the HF section of each VRX932LA. In larger arra ys, a single amplifier channel ma y be used for two adjacent loudspeak- ers. Arra y shading is then accomplished by adjusting the gain of the HF amplifier channels . F or e xtrem[...]

  • Page 7

    7 SYSTEM PR OCESSOR TUNINGS The following table represent s the JBL-approved tuning for the BSS366. If you have a processor for which VRX932LA settings have not been created, the t able may be used as a starting point to set your processor . Keep in mind that various processors respond to settings in different ways, so some additional fine-tuning m[...]

  • Page 8

    8 DEPLO YING THE SYSTEM The VRX932LA is a flexib le speaker system that can be deplo yed in g round-suppor ted or suspended applica- tions. The follo wing inf ormation will help you set up your VRX932LA system safely and eff ectively . POLE AND TRIPOD SAFETY W ARNINGS! When using stands or poles, be sure to observe the f ollowing precautions: • C[...]

  • Page 9

    Dual VRX932LA Unlike most con ventional speakers , the VRX932LA is designed so that a pair of speak- ers ma y be saf ely mounted onto a pole or tripod stand. F or most applications, the f or- ward soc ket of the dual angle pole sock et will be used. This will tilt the lower of the tw o speakers at a 15° do wn-angle (providing cov erage of the near[...]

  • Page 10

    10 SUSPENSION SAFETY W ARNINGS! Correct use of all rigging hardware is required f or secure system suspension. Careful calculations should always be perf ormed to ensure that all components are used within their wor king load limits bef ore the array is suspend- ed. Ne ver e xceed the maximum recommended load ratings. Prior to suspending the system[...]

  • Page 11

    11 Installing the Array Frame Suspension of the VRX932LA requires the VRX932LA-AF Array F rame [W arning: Do not use any substitute for VRX932LA-AF Array Frame] . This de vice is attached to the VRX932LA's integral rigging using the provided Quick Release Pins [W arning: Do not use any substitute f or these pins] . Up to six (6) VRX932LA speak[...]

  • Page 12

    JBL W ARRANTY AND CONT A CTS Mailing Address: JBL Prof essional 8500 Balboa Blvd. Nor thridge, CA 91329 USA Shipping Address: JBL Prof essional 8370 Balboa Blvd., Dock D Nor thridge, CA 91329 USA (Do not retur n product to this address without first obtaining prior author ization from JBL) Customer Service: Monda y through F r ida y 8:00am - 5:00pm[...]