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Electro-Voice XLC manual

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Table of contents for the manual

  • Page 1

    ELECTRO-VOICE ® XLC Rigging Manual[...]

  • Page 2

    ELECTRO-VOICE ® 1 Table of Contents Rigging-Safety W arning .............................................................................................................................................. 2 0 Introduction .................................................................................................................................[...]

  • Page 3

    ELECTRO-VOICE ® 2 Rigging-Safety Warning This document details general rigging practices appropriate to the entertainment industry, as they would apply to the rigging of Electro-Voice XLC loudspeaker systems. It is intended to familiarize the reader with standard rigging hardware and techniques for suspending XLC loudspeaker systems overhead. Only[...]

  • Page 4

    ELECTRO-VOICE ® 3 Figure 1a: XLC-127 Loudspeaker System Front View (Without Grille) Weight: 116 lb (52.6 kg) Top View 14.25in (362mm) Center of Gravity Side View Rear View Center of Gravity 8.31in (211mm) Ref 8.31in (211mm) 22.50in (572mm) 19.44in (494mm) 39.00in (991mm) C L 11.02in (280mm) Cent. 0. Introduction The XLC (X-Line Compact) loudspeake[...]

  • Page 5

    ELECTRO-VOICE ® 4 Figure 1b: XLC-127+ Loudspeaker System Front View (Without Grille) Weight: 111 lb (50.3 kg) Top View 14.25in (362mm) Center of Gravity Side View Rear View Center of Gravity 7.94in (202mm) Ref 22.50in (572mm) 19.56in (497mm) 39.00in (991mm) C L 11.02in (280mm) Cent. Figure 1c: XLC-118 Loudspeaker System Front View (Without Grille)[...]

  • Page 6

    ELECTRO-VOICE ® 5 1. XLC Rigging System 1.1 Overview of the XLC Flying System The XLC loudspeaker systems have been designed to construct acoustic line arrays. Acoustic line arrays typically consist of independent columns of loudspeaker systems. This simplifies the rigging system. The XLC loudspeaker enclosures utilize a hinged rigging system that[...]

  • Page 7

    ELECTRO-VOICE ® 6 Figure 2: Typical XLC Flying System Hoist Motor XLC Enclosures Grid Eight XLC Enclosures Hinged at the Front by the Button Bars and Front Rigging Tubes Angles Between Enclosures fixed by Pins through the Swing Arms and Rear Rigging Slot Holes The swing arm from an enclosure below can be pivoted up so that one of the quick-release[...]

  • Page 8

    ELECTRO-VOICE ® 7 Specifically, this means that when the enclosures are suspended, the back of the bottom enclosure will rotate down until the pin is stopped at the end of the slot in the swing arm. This one pin will not prevent the back corners of the enclosures from coming together. When landed, the enclosures will compress together until their [...]

  • Page 9

    ELECTRO-VOICE ® 8 Figure 4a: XLC-127 and XLC-127+ Rigging Dimensions Rear View Side View C L Front View (With Grille) Hole Detail Scale = 3:1 5.63in (143mm) Typ. 8.75in (222mm) 1.00in (25.4mm) Typ. 38.22in (971mm) Cent. 4.88in (124mm) 4.75in (121mm) 0.38in (9.7mm) R4.94in (125mm) 1.22in (31.0mm) Typ. 37.53in (953mm) Cent. 0.65in (16.5mm) Typ. Dia [...]

  • Page 10

    ELECTRO-VOICE ® 9 Figure 4b: XLC-118 Rigging Dimensions Rear View Side View C L Front View (With Grille) Hole Detail Scale = 3:1 9.22in (234mm) Typ. 12.34in (313mm) 1.00in (25.4mm) Typ. 38.22in (971mm) Cent. 7.79in (198mm) 7.67in (195mm) 0.32in (8.1mm) R6.30in (160mm) 1.22in (31.0mm) Typ. 37.53in (953mm) Cent. 0.65in (16.5mm) Typ. Dia .385in (9.8m[...]

  • Page 11

    ELECTRO-VOICE ® 10 2. XLC Rigging and Flying Techniques 2.1 Array Considerations The XLC loudspeaker systems have been specifically designed to construct acoustic line-arrays. Line-array systems typically consist of independent columns of loudspeaker enclosures. The most common implementation would be a stereo sound reinforcement system with two c[...]

  • Page 12

    ELECTRO-VOICE ® MAKE SURE THAT THE SPRING-LOADED BUTTONS ON THE BUTTON BARS FULLY LOCK INTO THE ROUND HOLES IN THE FRONT RIGGING TUBES ON BOTH ENCLOSURES. REPEAT THIS FOR EVERY ENCLOSURE ON BOTH SIDES OF THE LINE ARRAY. Attach the top enclosure in the array to the grid, as shown in Figure 6c. (Only an XLC compatible grid can be used with an XLC ar[...]

  • Page 13

    ELECTRO-VOICE ® 12 Initially, the rear rigging will be slack as the array is lifted. As more enclosures are suspended, the rear swing arms in the top enclosures will go into tension. If it is desired to lock the enclosures at their vertical splay angles when in compression as well as in tension, the lifting should be paused so that the second quic[...]

  • Page 14

    ELECTRO-VOICE ® Figure 6a: Flying XLC Systems with Front Dollies - Step 1 Figure 6b: Flying XLC Systems with Front Dollies - Step 2 Figure 6c: Flying XLC Systems with Front Dollies - Step 3 13[...]

  • Page 15

    ELECTRO-VOICE ® Figure 6d: Flying XLC Systems with Front Dollies - Step 4 Figure 6e: Flying XLC Systems with Front Dollies - Step 5 Dolly Clip 14[...]

  • Page 16

    ELECTRO-VOICE ® 3. Rigging-Strength Ratings, Safety Factors, and Special Safety Considerations 3.1 Working-Load Limit and Safety Factor Definitions The structural ratings for all of the XLC rigging components and complete loudspeaker systems are based on test results in which parts were stressed to failure. Manufacturers typically present the stru[...]

  • Page 17

    ELECTRO-VOICE ® 16 3.2 Structural Rating Overview There are two independent strength ratings that, together, give a complete description of the overall structural performance capabilities of any XLC loudspeaker system. They are defined as follows: 1. The strength of each individual rigging point; which is the combined strength of the rigging frame[...]

  • Page 18

    ELECTRO-VOICE ® 17 These guidelines provide a simplified rating for typical arrays based on the: 1. Vertical angle of each enclosure 2. Total weight of that enclosure plus all of the enclosures and rigging hung below it. 3. Angles of the force components on the front button bars and the rigging frames relative to the enclosures. 4. Angles of the f[...]

  • Page 19

    ELECTRO-VOICE ® 18 Figure 7 includes a graph of the working-load weight-versus-angle limit rating for the XLC enclo- sures. This working-load weight limit is applicable to every enclosure in an array, and includes the weight of that enclosure plus the total weight of all enclosures and rigging hardware suspended below it. The absolute enclosure an[...]

  • Page 20

    ELECTRO-VOICE ® 19 The reader should consult an experienced structural engineer to perform the complex structural analysis. WHEN SUSPENDING ANY XLC LOUDSPEAKER SYSTEM OVERHEAD, THE WORKING-LOAD LIMITS MUST NEVER BE EXCEEDED FOR EACH INDIVIDUAL RIGGING POINT, AND THE OVERALL ENCLOSURE. XLC-127, XLC-127+ and XLC-118 Front Rigging Structu ral-Strengt[...]

  • Page 21

    ELECTRO-VOICE ® 20 Figure 8: XLC-127, XLC-127+ and XLC-118 Front-Rigging-Point Structural Ratings 0 100 200 300 400 500 600 700 800 900 1000 1100 -180 -150 -120 -90 -60 -30 0 30 60 90 120 150 180 A ng l e ( D egr ees) Working-Load Limi t (lb) 0 50 100 150 200 250 300 350 400 450 500 Working-Load Limi t (kg) - ∅ ° + ∅ ° - 5 ° MAX + 5 ° MAX[...]

  • Page 22

    ELECTRO-VOICE ® 21 Figure 9: XLC-127 and XLC-127+ Rear-Rigging-Point Structural Ratings Working-Load Limit 975 lb (422 kg) From 0° to -8° (Swing Arm in Tension) From +172° to +180° (Swing Arm in Compression) This is the Only Possible Angle Range - ∅ ° + ∅ ° + 5 ° MAX - 5 ° MAX[...]

  • Page 23

    ELECTRO-VOICE ® 22 Figure 10: XLC-118 Rear-Rigging-Point Structural Ratings Working-Load Limit 975 lb (422 kg) From 0° to -12° (Swing Arm in Tension) From +168° to +180° (Swing Arm in Compression) This is the Only Possible Angle Range - ∅ ° + ∅ ° + 5 ° MAX - 5 ° MAX[...]

  • Page 24

    ELECTRO-VOICE ® Figure 11: XLC-127, XLC-127+ and XLC-118 Overall Enclosure Structural Ratings Total Column Weight Working-Load Limit 2200 lb (998 kg) 23[...]

  • Page 25

    ELECTRO-VOICE ® XLC-127, XLC-127+ and XLC-118 Overall Enclosure Structural-Strength Ratings The actual strength of the XLC enclosures will depend on the complex total of the combined forces from each of the rigging points acting on the enclosure as a whole and will vary with the array configuration. However, for the sake of simplicity, Electro-Voi[...]

  • Page 26

    ELECTRO-VOICE ® 25 3.6 Electro-Voice Structural-Analysis Procedures Electro-Voice maintains a structural pull-test facility in Burnsville, Minnesota USA which includes load cells with digital-electronic display and recording. The load cells are calibrated annually by an in-dependent laboratory to a standard traceable to the United States National [...]

  • Page 27

    ELECTRO-VOICE ® 26 4. Rigging Inspection and Precautions Electro-Voice XLC Loudspeaker Systems: Prior to each use, inspect the loudspeaker enclosures for any cracks, deformations, missing or damaged components that could reduce enclosure strength. Inspect the rigging frame assemblies on the enclosures for any cracks, deformations, corrosion, missi[...]

  • Page 28

    ELECTRO-VOICE ® Pull-Up Grid Assemblies: Prior to each use, inspect the pull-up grid bar assembly any for cracks, burrs, deformations, corrosion or missing or damaged components that could reduce the pull-up assembly strength. Replace any pull-up grids that are damaged or missing hardware. Always double check that each pull-up grid is securely loc[...]

  • Page 29

    ELECTRO-VOICE ® 28 References Rigging References [1] W.E. Rossnagel, L.R. Higgins & J.A. MacDonald, Handbook of Rigging for Construction and Industrial Operations, McGraw-Hill Book Company, New York, NY, USA (1988). [2] J.O. Glerum, Stage Rigging Handbook, Southern Illinois University Press, Carbondale, IL, USA (1987). [3] P. Carter, Backstage[...]

  • Page 30

    ELECTRO-VOICE ® 29 Notes[...]

  • Page 31

    ELECTRO-VOICE ® Notes 30[...]

  • Page 32

    ELECTRO-VOICE ® U.S.A. and Canada: For customer orders, contact the Customer Service dep artment at: 800/392-3497 Fax: 800/955-6831 For warranty repair or service information, contact the Service Rep air Department at: 800/685-2606 For technical assist ance, contact T echnical Support at: 866/78-AUDIO S pecifications subject to change without noti[...]