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Electro-Voice EVF/EVH User Manual
Table of Contents
Rigging-Safety Warning ...........................................................................................................................................................................................3
1.0 Introduction ........................................................................................................................................................................................................4
1.1 Finishes and Colors Available .........................................................................................................................................................9
1.2 EVF Front-Loaded Series ................................................................................................................................................................9
1.3 EVH Horn-Loaded Series ................................................................................................................................................................9
1.4 Accessories for EVF and EVH Systems .....................................................................................................................................10
2.0 Tool List ......................................................................................................................................................................................................10
3.0 Designing an EVF/EVH Cluster ................................................................................................................................................................. 11
3.1 General Aiming and Placement Guidelines .............................................................................................................................. 11
3.2 Choosing between the EVF Full-Range and EVH Full-Range Systems ............................................................................ 11
3.21 Directivity Break Frequency Defined ........................................................................................................................ 11
3.3 More on Coverage Patterns, Multiple Coverage Patterns, the Need for Clusters of
Loudspeakers and How Far a Single Cluster Can “Reach” into a Venue ......................................................................... 12
3.31 Basic Clustering Guidelines ...................................................................................................................................... 12
3.4 Coverage-Uniformity Target ......................................................................................................................................................... 13
3.5 Multiple-Source Interference in Clusters .................................................................................................................................. 14
3.51 Reducing Multiple-Source Interference .................................................................................................................. 16
4.0 Preparing EVF and EVH Systems for Installation ................................................................................................................................... 19
4.1 Recommended Preflight Procedures ......................................................................................................................................... 19
4.2 Passive/Biamp Crossover Configuration .................................................................................................................................. 19
4.3 Rotation of High-Frequency Waveguides (EVF Systems) .................................................................................................... 20
4.4 Rotation of High-Frequency Waveguides and Mid-Frequency Waveguide
Contours (EVH Systems) .............................................................................................................................................................. 20
4.5 Digital Signal Processing .............................................................................................................................................................. 21
4.51 Full-Range Systems in Passive Mode ..................................................................................................................... 21
4.52 Using the EVF-1121S and EVF-1151S Low-Frequency Systems in Full-Range
Clusters that Operate on a Single Power-Amplifier Channel ............................................................................ 22
4.53 DSP (Digital Signal Processor) Loudspeaker Presets for Biamp Operation ................................................. 22
5.0 EVF and EVH Rigging System .................................................................................................................................................................... 23
5.1 Introduction ...................................................................................................................................................................................... 23
5.11 The Flying EV-Innovation (EV-I) Loudspeaker System ........................................................................................ 23
5.12 Important Details that Apply to the VRK and HRK Rigging Kits ....................................................................... 26
5.2 EV-I Rigging Primer ........................................................................................................................................................................ 26
5.21 Anatomy of an EVF or EVH Flying System Using M10 Eyebolts ....................................................................... 27
5.211 Eyebolt Application Warnings ................................................................................................................. 27
5.212 Eyebolt Installation ..................................................................................................................................... 28
5.213 All-Eyebolt Clusters ................................................................................................................................... 29
5.22 VRK Kits and Vertically Rigged Clusters ................................................................................................................ 31
5.23 HRK Kits and Horizontally Rigged Clusters .......................................................................................................... 32
5.24 Assembly Instructions for VRK and HRK Kits ....................................................................................................... 35
6.0 Rigging-Strength Ratings and Safety Factors .........................................................................................................................................37
6.1 Working Load Limit and Safety-Factor Definitions ..................................................................................................................37
6.2 Structural-Rating Overview .......................................................................................................................................................... 38
6.3 All-Eyebolt Structural Ratings ...................................................................................................................................................... 39
6.31 Working Load Limits for Eyebolts ............................................................................................................................. 40
6.32 Suspension-Line Angles ............................................................................................................................................. 41
6.33 Left-to-Right All-Eyebolt Cluster Angles ................................................................................................................ 41
6.4 VRK Rigging Structural Ratings for Vertical Clusters ............................................................................................................ 42
6.41 Working Load Limits for Eyebolts used with VRK Vertical Rigging Kits .......................................................... 44
6.42 Left-to-Right Vertical Cluster Angles ....................................................................................................................... 45
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