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EVF/EVH

User Manual

EVF-1121S

EVF-1151S

EVF-1181S

EVF-2121S

EVF-2151D

EVF-1122S (All Patterns)

EVF-1122D (All Patterns)

EVF-1152S (All Patterns)

EVF-1152D (All Patterns)

EVH-1152S (All Patterns)

EVH-1152D (All Patterns)

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