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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

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1.0 Introduction ........................................................................................................................................................................................................

1.1 Finishes and Colors Available 9

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1.2 EVF Front-Loaded Series 9

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1.3 EVH Horn-Loaded Series 9

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1.4 Accessories for EVF and EVH Systems .....................................................................................................................................

2.0 Tool List ......................................................................................................................................................................................................

3.0 Designing an EVF/EVH Cluster 11

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3.1 General Aiming and Placement Guidelines 11

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3.2 Choosing between the EVF Full-Range and EVH Full-Range Systems 11

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3.21 Directivity Break Frequency Deﬁned 11

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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

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3.31 Basic Clustering Guidelines 12

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3.4 Coverage-Uniformity Target 13

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3.5 Multiple-Source Interference in Clusters 14

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3.51 Reducing Multiple-Source Interference 16

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4.0 Preparing EVF and EVH Systems for Installation 19

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4.1 Recommended Preﬂight Procedures 19

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4.2 Passive/Biamp Crossover Conﬁguration 19

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4.3 Rotation of High-Frequency Waveguides (EVF Systems) 20

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4.4 Rotation of High-Frequency Waveguides and Mid-Frequency Waveguide

Contours (EVH Systems) 20

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4.5 Digital Signal Processing 21

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4.51 Full-Range Systems in Passive Mode 21

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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

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4.53 DSP (Digital Signal Processor) Loudspeaker Presets for Biamp Operation 22

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5.0 EVF and EVH Rigging System 23

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5.1 Introduction 23

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5.11 The Flying EV-Innovation (EV-I) Loudspeaker System 23

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5.12 Important Details that Apply to the VRK and HRK Rigging Kits 26

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5.2 EV-I Rigging Primer 26

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5.21 Anatomy of an EVF or EVH Flying System Using M10 Eyebolts .......................................................................

5.211 Eyebolt Application Warnings .................................................................................................................

5.212 Eyebolt Installation 28

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5.213 All-Eyebolt Clusters 29

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5.22 VRK Kits and Vertically Rigged Clusters 31

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5.23 HRK Kits and Horizontally Rigged Clusters 32

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5.24 Assembly Instructions for VRK and HRK Kits 35

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6.0 Rigging-Strength Ratings and Safety Factors .........................................................................................................................................

6.1 Working Load Limit and Safety-Factor Deﬁnitions ..................................................................................................................

6.2 Structural-Rating Overview ..........................................................................................................................................................

6.3 All-Eyebolt Structural Ratings ......................................................................................................................................................

6.31 Working Load Limits for Eyebolts .............................................................................................................................

6.32 Suspension-Line Angles 41

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6.33 Left-to-Right All-Eyebolt Cluster Angles 41

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6.4 VRK Rigging Structural Ratings for Vertical Clusters 42

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6.41 Working Load Limits for Eyebolts used with VRK Vertical Rigging Kits ..........................................................

6.42 Left-to-Right Vertical Cluster Angles 45

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Electro-Voice EVF/EVH User Manual

Rigging-Safety Warning

This document details general rigging practices appropriate to the entertainment industry, as they would apply to the rigging

of Electro-Voice EVF and EVH loudspeaker systems. It is intended to familiarize the reader with standard rigging hardware and

techniques for suspending EVF and EVH loudspeaker systems overhead. Only persons with the knowledge of proper hardware

and safe rigging techniques should attempt to suspend any sound systems overhead. Prior to suspending any

Electro-Voice EVF and EVH loudspeaker systems overhead, it is essential that the user be familiar with the strength

ratings, rigging techniques and special safety considerations outlined in this manual. The rigging techniques and practices

recommended in this manual are, of necessity, in general terms to accommodate the many variations in loudspeaker clusters

and rigging conﬁgurations. As such, the user is expressly responsible for the safety of all speciﬁc EVF and EVH

loudspeaker cluster designs and rigging conﬁgurations as implemented in practice.

All the general rigging material contained in this manual is based on the best available engineering information concerning

materials and practices, as commonly recognized in the United States, and is believed to be accurate at the time of original

printing. As such, the information may not be directly applicable in other countries. Furthermore, the regulations and

requirements governing rigging hardware and practices may be superseded by local regulations. It is the responsibility of the

user to ensure that any Electro-Voice loudspeaker system is suspended overhead in accordance with all current federal, state

and local regulations.

All speciﬁc material concerning the strength ratings, rigging techniques and safety considerations for the EVF and EVH

loudspeaker systems is based on the best available engineering information concerning the use and limitations of the

products. Electro-Voice continually engages in testing, research and development of its loudspeaker products. As a result, the

speciﬁcations are subject to change without notice. It is the responsibility of the user to ensure that any

Electro-Voice loudspeaker system is suspended overhead in accordance with the strength ratings, rigging techniques and

safety considerations given in this document and any manual update notices. All non-Electro-Voice associated hardware items

necessary to rig a complete EVF and EVH loudspeaker cluster (chain hoists, building or tower supports and miscellaneous

mechanical components) are the responsibility of others.

Electro-Voice

June 2010

Table of Contents (cont.)

6.5 HRK Rigging Structural Ratings for Horizontal Clusters ......................................................................................................

6.51 Using Tie Plates as Main Load-Bearing Suspension ............................................................................................

6.52 Suspension-Line Angles for HRK Kits ....................................................................................................................

6.53 Symmetry for Horizontal Clusters using HRK Kits ...............................................................................................

6.54 Inner Connection Points .............................................................................................................................................

6.55 Left-to-Right Horizontal Cluster Angles ..................................................................................................................

6.6 Ratings for Outdoor Applications with Wind Loading 51

...........................................................................................................

6.7 Electro-Voice Structural-Analysis Procedures 51

.........................................................................................................................

7.0 Rigging Inspection and Precautions 52

...........................................................................................................................................................

8.0 Installation Instructions TK150.. 53

..................................................................................................................................................................

8.1 Transformer Ratings .......................................................................................................................................................................

8.2 Approvals and Certiﬁcations ........................................................................................................................................................

9.0 Refrences......................................................................................................................................................................................................... 55

9.1 Rigging (Printed) 55

.............................................................................................................................................................................

9.2 Mechanical Engineering (Printed) 55

...............................................................................................................................................

9.3 Rigging (Websites) 55

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