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Electro-V oice® EV A Series User Manual EV A Series User Manual EV A-2082S/906 EV A-2082S/920 EV A-2082S/126 EV A-2082S/1220.
Electro-V oice® EV A Series User Manual T able of Contents Rigging-Safety W arning .................................................................................................................................................... 3 1.0 Introduction .
Electro-V oice® EV A Series User Manual Rigging-Safety Warning 3 This document details general rigging practices appropriate to the entertainment industry , as they would apply to the rigging of Electro-V oice EV A loudspeaker systems.
Electro-V oice® EV A Series User Manual 1.0 Introduction The Electro-V oice® EV A (Expandable V ertical Array) loudspeaker systems or line-array modules represent an important step in line-array technology for small- and medium-scale fixed-installation sound reinforce- ment.
Electro-V oice® EV A Series User Manual 5 1.0 Introduction (cont’) Up to eight paralleled modules can be driven from a single amplifier channel capable of driving a 2.3-ohm nominal impedance if at least two of the modules have the optional EV A-AM attenuation modules installed.
Electro-V oice® EV A Series User Manual 6 1.0 Introduction (cont’) Figure 1a: EV A-2082S/906 or EV A-2082S/126 dimensioned views Figure 1b: EV A-2082S/920 or EV A-2082S/1220 dimensioned views Botto.
Electro-V oice® EV A Series User Manual 7 2.0 T ool List Listed below are the tools required to assemble an EV A array: 1. Phillips #2 screwdriver (for attaching cosmetic end panels) . 2. 6-mm Allen (hex) wrench (for attaching tie plates and assembling grids) .
Electro-V oice® EV A Series User Manual 8 3.0 Designing an EV A Array (cont’) 3.3 Determining EV A Array Configuration with EV ADA™ (EV A Design Assistant) Software EV ADA™ is Excel-spreadsheet-based software for determining optimum array configurations for a given venue and trim heights.
Electro-V oice® EV A Series User Manual 9 3.0 Designing an EV A Array (cont’) Figure 4 shows the EV ADA Main tab, where the array is built and its performance evaluated in the three frequency bands mentioned above. This tab is full of information and things to enter: 1.
Electro-V oice® EV A Series User Manual 10 3.0 Designing an EV A Array (cont’) Producing the most uniform front-to-back coverage is an iterative process. In general, it will be found that: 1. The top-most module will be aimed above the last-row heads.
Electro-V oice® EV A Series User Manual Figure 5: EV ADA TM Picture tab 3.0 Designing an EV A Array (cont’) Figure 5 shows the Picture tab of the EV ADA spreadsheet, with a side view of the array and its suspen- sion.
Electro-V oice® EV A Series User Manual 3.0 Designing an EV A Array (cont’) Figure 6 shows the Report tab of the EV ADA spreadsheet, showing such details as hang points (in this example, pinholes 1.
Electro-V oice® EV A Series User Manual 3.0 Designing an EV A Array (cont’) The Cable Loss tab allows the user to enter the combined impedance of an EV A array and the length and gauge (A WG) of the wire feeding it, in order to calculate the level lost (dB) in the cable feeding the array .
Electro-V oice® EV A Series User Manual 14 3.0 Designing an EV A Array (cont’) 3.4 Other Design Examples 3.41 Dealing with the Relatively High Low-Frequency V ariation of Short Arrays The example o.
Electro-V oice® EV A Series User Manual 15 3.0 Designing an EV A Array (cont’) 3.42 A Five-Module Array Example Figure 9 shows another, five-module array in an 80-ft-deep venue with the front row five ft from the ar- ray and whose floor begins to rise about halfway back.
Electro-V oice® EV A Series User Manual 16 3.0 Designing an EV A Array (cont’) Figure 10: A eight-module EV A example in a large theater with two balconies (see text above for more details) 3.43 An Eight-Module Example Figure 10 shows an eight-module array in a large theater with two balconies.
Electro-V oice® EV A Series User Manual 17 4.0 Preparing EV A Modules for Installation 4.1 Recommended Preflight Procedures For any installed sound system, certain checks made at the installer’s place of business can prevent ex- pensive on-site delays.
Electro-V oice® EV A Series User Manual 4.0 Preparing EV A Modules for Installation (cont’) T o attenuate the top HF element, remove the switch card by drawing it toward you using the central finger hole.
Electro-V oice® EV A Series User Manual Figure 12: EV A input panel removed, showing green PC board and the four bosses to which the optional EV A-AM attenuation module will be attached Figure 13: EV A input panel with EV A-AM installed showing connector plug-in 4.
Electro-V oice® EV A Series User Manual 5.0 EV A Rigging System 5.1 Overview of the EV A Flying System The external rigging parts supplied with each EV A line-array module attach to metal parts internal to each module, so that a finished array places no stress on the wooden enclosure parts.
Electro-V oice® EV A Series User Manual 5.0 EV A Rigging System (cont’) While 80-90% of EV A applications will be accommodated with arrays of three or four modules. Up to eight EV A modules may be suspended together up to a combined maximum loudspeaker column weight of 720 lbs.
Electro-V oice® EV A Series User Manual 5.0 EV A Rigging System (cont’) A second spreader bar, EV A-GXB, is available. The second spreader bar is used when two front-to-back pickup points are desired/required. Figure 16 shows an EV A-SG grid with a second spreader bar.
Electro-V oice® EV A Series User Manual 23 5.0 EV A Rigging System (cont’) 5.23 Use of T wo Standard Grids T wo EV A-SG standard grids may also be used with an EV A array , one attached to the upper module and the other attached to the lower module, acting as a pull-up grid.
Electro-V oice® EV A Series User Manual 5.0 EV A Rigging System (cont’) 5.3 Assembling and Flying an EV A Array On each end of an EV A module are a pair of upper and lower connection points that ac.
Electro-V oice® EV A Series User Manual 25 6.0 Rigging-Strength Ratings and Safety Factors 6.1 Working-Load Limit and Safety Factor Definitions The structural ratings for all of the EV A rigging components and complete loudspeaker systems are based on test results in which parts were stressed to failure.
Electro-V oice® EV A Series User Manual 6.0 Rigging-Strength Ratings and Safety Factors (cont’) 6.2 Structural Rating Overview Designing a safe structural array is ordinarily a very complex process best left to experienced profession- als.
Electro-V oice® EV A Series User Manual 27 6.0 Rigging-Strength Ratings and Safety Factors (cont’) 6.3 Simplified Structural-Rating Guidelines The simplified structural-rating guidelines for EV A loudspeakers are shown in Figure 19. These guidelines were determined based on the: 1.
Electro-V oice® EV A Series User Manual 28 WHEN APPL YING THE STRUCTURAL RA TING GUIDELINES T O ANY EV A L OUDSPEAKER S Y STEM SUSPENDED OVERHEAD, THE USER MUST OBEY THE FOLL OWING RULES: 1. Never exceed 720 lb (327 kg) total column weight of suspended loudspeakers, accesso- ries and cabling.
Electro-V oice® EV A Series User Manual 6.0 Rigging-Strength Ratings and Safety Factors (cont’) 29 Figure 21: Side-to-side angular pull structural-rating guidelines for EV A spreader bars Figure 22.
Electro-V oice® EV A Series User Manual 30 6.0 Rigging-Strength Ratings and Safety Factors (cont’) 6.4 Electro-V oice Structural-Analysis Procedures Electro-V oice maintains a structural pull-test facility in Burnsville, Minnesota USA which includes load cells with digital-electronic display and recording.
Electro-V oice® EV A Series User Manual 31 7.0 Rigging Inspections and Precautions Electro-V oice EV A Loudspeaker Systems: Prior to each use, inspect the enclosures for any cracks, deformations or missing or damaged components that could reduce enclosure strength.
Electro-V oice® EV A Series User Manual 32 8.0 References 8.1 Rigging (printed) [1] W .E. Rossnagel, L.R. Higgins & J.A . MacDonald, Handbook of Rigging for Construction and Industrial Operations, McGraw-Hill Book Company , New Y ork, NY , USA (1988) .
Electro-V oice® EV A Series User Manual 33 8.0 References (cont’) 8.3 Rigging (Web sites) [1] http://www .rigging.net [2] http://www .cmworks.com/ [3] http://catalog.
Electro-V oice® EV A Series User Manual 34 Notes.
Electro-V oice® EV A Series User Manual 35 Notes.
Electro-V oice® EV A Series User Manual 12000 Portland Avenue South, Burnsville, MN 55337 Phone: 952/884-4051, Fax: 952/884-0043 w w w .electrovoice.com © Bosch Communications Systems 12/2008 Part Number LIT000350 Rev 1 U.
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