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Electro-V oice EVF/ EVH User Manual EVF/ EVH User Manual EVF-1 1 2 1S EVF-1 1 5 1S EVF-1 1 8 1S EVF-2 1 2 1S EVF-2 1 5 1D EVF-1 1 22S (All Patterns) EVF-1 1 22D (All Patterns) EVF-1 1 52S (All Pattern.
Electro-V oice EVF/ EVH User Manual T able of Contents Rigging-Safety W arning ............................................................................................................................................................................
Electro-V oice EVF/ EVH User Manual Rigging-Safet y W arning 3 This document details general rigging practices appropriate to the entertainment industry, as they would apply to the rigging of Electro-V oice EVF and EVH loudspeaker systems.
Electro-V oice EVF/ EVH User Manual 1.0 Introduction The Electro-V oice EVF series is a group of compact two-way front-loaded full-range systems, available with 12- or 15-inch woofers, augmented by low-frequency and subwoofer systems. EVF full-range sys- tems are available in two versions.
Electro-V oice EVF/ EVH User Manual 5 T ypical EVF and EVH systems are shown in Figure 1, with key dimensions, suspension points, weights and centers-of-gravity .
Electro-V oice EVF/ EVH User Manual 1.0 Introduction (cont’) Figure 1c: Key dimensions, suspension points, weight, and center-of-gravity for EV F-1121S Front V iew End View Side View Rear View System W eight - 57 .
Electro-V oice EVF/ EVH User Manual Figure 1f: Key dimensions, suspension points, weight, and center-of-gravity for EV F-2121S Figure 1g: Key dimensions, suspension points, weight, and center-of-gravi.
Electro-V oice EVF/ EVH User Manual 1.0 Introduction (cont’) Figure 1h: Key suspension point dimensions for EV F or EV H loudspeakers as indicated in table belo w Figure 1g: Key dimensions for washe.
Electro-V oice EVF/ EVH User Manual 1.0 Introduction (cont’) 1.1 Finishes and Colors A vailable The standard EVF/ EVH indoor versions are finished in tough EVCoat™. In addition, all models are available in two levels of weather resist ance, indicated by letters following the coverage-pattern numbers.
Electro-V oice EVF/ EVH User Manual 2.0 T ool List Listed below are the tools required to prepare EVF and EVH systems for installation: 1. 3/16-inch flat-blade screwdriver (for attaching signal wires to input-panel connectors).
Electro-V oice EVF/ EVH User Manual 3.0 Designing an EV F/ EV H Cluster 3.1 General Aiming and Placement Guidelines Loudspeakers should be “pointed at the people” and away from reflective room surfaces.
Electro-V oice EVF/ EVH User Manual 3.0 Designing an EV F/ EV H Cluster (cont’) 3.3 More on Coverage Patterns, Multiple Coverage P atterns, the Need for Clusters of Loud- speakers and How F ar a Sin.
Electro-V oice EVF/ EVH User Manual 13 Figure 2: T ypical “reach” of a single loudspeaker into a venue (D I ) in order to maintain the desired ±3 dB coverage is about t wo times the distance to the closest seats (D S ) 3.
Electro-V oice EVF/ EVH User Manual 14 3.5 Multiple-Source Interference in Clusters W henever two or more sources serve a single venue, some seats will receive strong signals from multiple sources. Consider two EVF-1122S/6 4 60° x 4 0° systems clustered side by side with their axes 60° apart to form a 120° x 4 0° cluster .
Electro-V oice EVF/ EVH User Manual 15 Figure 5: T ypical response off the array axis of the t w o loudspeakers sho wn in Figure 4, showing cancellations due to arrival-time differences This effect is shown in the frequency-response of Figure 5.
Electro-V oice EVF/ EVH User Manual 16 At higher frequencies, the interference patterns become more densely packed, whic h essentially elimi- nates their audibility . Figure 7 shows this effect at 8,000 Hz. 3.51 Reducing Multiple-Source Interference Multiple-source interference cannot be eliminated but it can be subst antially reduced.
Electro-V oice EVF/ EVH User Manual 17 One clustering technique that accomplishes this separation without putting a physical space between two full-range systems is putting a low-frequency or subwoofer system between two full-range systems. Suc h a cluster is shown in Figure 9, assembled with the optional H R K rigging kits.
Electro-V oice EVF/ EVH User Manual 18 Finally , another way to reduce interference is to apply signal delay of up to 8 milliseconds to one of the two systems. This requires a separate DS P (digital signal processor) drive to the delayed system. Figure 1 0 shows the dramatic smoothing achieved at 1,250 Hz.
Electro-V oice EVF/ EVH User Manual 19 4.0 Preparing EV F and EV H Systems for Installation 4.1 Recommended Preflight P rocedures For any installed sound system, cert ain c hecks made at the installer ’ s place of business can prevent ex- pensive on-site delays.
Electro-V oice EVF/ EVH User Manual 20 4.0 Preparing EV F and EV H Systems for Installation (cont’) T o configure for biamp operation, remove the switc h card by drawing it toward you using the central finger hole.
Electro-V oice EVF/ EVH User Manual 21 4.0 Preparing EV F and EV H Systems for Installation (cont’) Figure 1 2: An E VH hard foam waveguide contour being removed for reorientation 4.
Electro-V oice EVF/ EVH User Manual 22 4.0 Preparing EV F and EV H Systems for Installation (cont’) 4.52 Using the EVF-1 1 21S and EVF-1 1 51S Low-F requency Systems in Full-Range Clusters that Oper.
Electro-V oice EVF/ EVH User Manual 23 5.0 EV F and EV H Rigging System 5.1 Introduction 5.1 1 The Flying EV -Innovation (EV -I) Loudspeaker System All EVH and EVF loudspeaker systems incorporate heavy-duty M1 0-1.5 threaded attachment points on each enclosure.
Electro-V oice EVF/ EVH User Manual 24 Figure 1 4a: V R K -1 rigging kit with par ts identified 5.0 EV F and EV H Rigging System (cont’) Figure 1 4b: V R K -2 rigging kit with par ts identified Fi.
Electro-V oice EVF/ EVH User Manual 25 Figure 1 5a: H R K -1 rigging kit with par ts identified 5.0 EV F and EV H Rigging System (cont’) Figure 1 5b: H R K -2 rigging kit with par ts identified Fi.
Electro-V oice EVF/ EVH User Manual 26 5.1 2 Important Details that Apply to the VR K and H R K Rigging Kits B oth the VR K and H R K kits include all necess ary mounting hardware (as shown in Figures 14 and 15).
Electro-V oice EVF/ EVH User Manual 27 5.21 Anatomy of an EVF or EVH Flying System Using M1 0 Eyebolts 5.21 1 Eyebolt Application W arnings N O EYE B OL T SH O U LD B E MO U N TE D I N T H E S I D E S OF AN Y EVF O R EVH E N C L O S U R E I N O R D E R T O S U SP E N D A S Y STE M O R C LUSTE R FR O M TH E T O P .
Electro-V oice EVF/ EVH User Manual 28 5.0 EV F and EV H Rigging System (cont’) 5.21 2 Eyebolt Installation Inst allation instructions follow: 1. Remove the M1 0 flat-head bolts from the enclosure (see Figure 18a).
Electro-V oice EVF/ EVH User Manual 29 5.21 3 All-Eyebolt Clusters A basic two-cabinet flying system is shown in Figures 19 and 20, illustrating the components necessary to make a typical two-system horizont al or vertical cluster using M1 0 eyebolts.
Electro-V oice EVF/ EVH User Manual 30 A horizont al two-cabinet eyebolt hang, shown in Figure 20, is similar to a vertical hang (shown in Figure 19), but with the cabinets rot ated and other surfaces used for mounting eyebolts.
Electro-V oice EVF/ EVH User Manual 31 Figure 2 1a: B asic three-enclosure vertical hang of an E VF subw oofer on top and tw o E VF full-range systems below , using one each V R K -1 and V R K -2 kits (optional acces- sories) and four eyebolts (supplied with systems), using a moderate trim angle 5.
Electro-V oice EVF/ EVH User Manual 32 5.0 EV F and EV H Rigging System (cont’) 5.23 H R K Kits and Horizontally Rigged Clusters The main difference between the H R K and the VR K rigging kits is the addition of a tie plate in the center of the rigging plate.
Electro-V oice EVF/ EVH User Manual 33 A basic three-over-three cluster is shown in Figure 23. MAI N SU S PE NS I O N LI N E S AN D PU LL BACKS M U S T B E T I E D T O TH E TI E P LA TE S. N O TE TH A T TH E H R K K ITS AR E D E SI G N E D T O MAK E W E I G HTS YM M ETR I CAL C LUS TE R S, I.
Electro-V oice EVF/ EVH User Manual 34 5.0 EV F and EV H Rigging System (cont’) Figure 2 3a: A six-enclosure horizontal hang of three systems above and three systems below , connected by four H R K .
Electro-V oice EVF/ EVH User Manual 35 5.0 EV F and EV H Rigging System (cont’) 5.24 Assembly Instructions for VR K and H R K kits B oth the VR K and H R K rigging kits share the s ame mounting hole positions and letter designations. T ables 5, 6, and 7 apply to both the VR K and H R K kits.
Electro-V oice EVF/ EVH User Manual 36 5.0 EV F and EV H Rigging System (cont’) T able 5: For clustering E VF full-range and low-frequency (not subwoofer) systems using V R K -1 or H R K -1 rigging kits Letter Rigging-Plate Position Arrow Direction (both rigging plates) A ngle Hole-to-Hole Dim.
Electro-V oice EVF/ EVH User Manual 37 6.0 Rigging-Strength Ratings and Safet y Factors 6.1 W orking Load Limit and Safety-Factor Definitions The structural ratings for all of the EVF and EVH rigging components and complete loudspeaker sys- tems are based on test results in which parts were stressed to failure.
Electro-V oice EVF/ EVH User Manual 38 6.0 Rigging-Strength Ratings and Safet y Factors (cont’) 6.2 Structural Rating Overview Designing a s afe structural cluster is usually a very complex process best left to experienced profession- als.
Electro-V oice EVF/ EVH User Manual 39 6.0 Rigging-Strength Ratings and Safet y Factors (cont’) 6.3 All-Eyebolt Structural Ratings The guidelines for simplified all-eyebolt structural ratings cover the following information: 1. Maximum number of enclosures.
Electro-V oice EVF/ EVH User Manual 0 50 100 150 200 250 300 350 400 450 500 550 600 650 0 10 20 30 40 50 60 70 80 90 An gle (Degrees) Working Load Limit (lb) 0 23 45 68 91 113 136 159 181 204 227 249 272 295 Working Load Limit (kg) 575 lb (261 kg) @ 0° 262 lb (119 kg) @ 30° 185 lb (84 kg) @ 60 ° 171 lb (78 kg) @ 90° 40 6.
Electro-V oice EVF/ EVH User Manual 41 6.0 Rigging-Strength Ratings and Safet y Factors (cont’) 6.32 Suspension-Line Angles Refer to T able 9 and Figure 25 for specific eyebolt angle and weight limitiations when using all-eyebolt clusters. These limits are not to be exceeded under any circumstances.
Electro-V oice EVF/ EVH User Manual 42 6.0 Rigging-Strength Ratings and Safet y Factors (cont’) 6.4 VR K Rigging Structural Ratings for V ertical Clusters The guidelines for simplified vertical structural ratings cover the following information: 1.
Electro-V oice EVF/ EVH User Manual 43 6.0 Rigging-Strength Ratings and Safet y Factors (cont’) TH E MAX I M U M L OAD, MA X I M U M LE N GTH AN D EYE B O L T AN G LE R ESTR I CTI O NS FO R VE RTI CAL C LU STE R S A R E LI STE D I N T A B LE 1 0.
Electro-V oice EVF/ EVH User Manual 0 50 100 150 200 250 300 350 400 450 500 550 600 650 0 10 20 30 40 50 60 70 80 90 An gle (Degrees) Working Load Limit (lb) 0 23 45 68 91 113 136 159 181 204 227 249 272 295 Working Load Limit (kg) 575 lb (261 kg) @ 0° 262 lb (119 kg) @ 30° 185 lb (84 kg) @ 60 ° 171 lb (78 kg) @ 90° 44 6.
Electro-V oice EVF/ EVH User Manual 45 6.0 Rigging-Strength Ratings and Safet y Factors (cont’) 6.42 Left-to-Right V ertical Cluster Angles The suspended vertical cluster must be perpendicular (plumb) to within ±5° as shown in Figure 30.
Electro-V oice EVF/ EVH User Manual 46 6.0 Rigging-Strength Ratings and Safet y Factors (cont’) 6.5 H R K Rigging Structural Ratings for Horizontal Clusters The guidelines for simplified horizontal structural ratings cover the following information: 1.
Electro-V oice EVF/ EVH User Manual 47 6.0 Rigging-Strength Ratings and Safet y Factors (cont’) 6.51 Using T ie Plates as Main Load-B earing Suspension Horizont al clusters are attached to the structure with the tie plates located on the rigging plates of the H R K kits.
Electro-V oice EVF/ EVH User Manual 48 6.0 Rigging-Strength Ratings and Safet y Factors (cont’) 6.52 Suspension-Line Angles for H R K Kits Suspension-line angles are restricted to 3 0° off the axis of the tie plate’ s center line. Figure 32 shows the angle limit ations recommended for horizontal clusters when using H R K kits.
Electro-V oice EVF/ EVH User Manual 49 6.0 Rigging-Strength Ratings and Safet y Factors (cont’) 6.53 Symmetry for Horizontal Clusters using H R K Kits The cluster’ s center of gravity is centered .
Electro-V oice EVF/ EVH User Manual 50 6.0 Rigging-Strength Ratings and Safet y Factors (cont’) 6.5 4 Inner Connection P oints For connection between the clusters (from bottom of top enclosure to the top of the bottom enclosure), both the front and rear rigging plates must be connected (see Figure 3 4).
Electro-V oice EVF/ EVH User Manual 51 6.6 Ratings for Outdoor Applications with Wind Loading Special considerations must be made for outdoor venues where wind conditions could become a con- cern. High wind gusts can push the loudspeakers in a way that the suspension lines’ direction of force can become mis aligned with the plane of the eyebolt.
Electro-V oice EVF/ EVH User Manual 52 7 .0 Rigging Inspections and Precautions Electro- V oice EVF and EVH Loudspeak er 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 EVF/ EVH User Manual 53 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 B ook Company , New Y ork, NY , U SA (198 8).
Electro-V oice EVF/ EVH User Manual 54 Notes.
Electro-V oice EVF/ EVH User Manual 55 Notes.
Electro-V oice EVF/ EVH User Manual 12000 Portland A venue South, Burnsville, M N 5533 7 Phone: 952/88 4-4051, Fax: 952/8 84-0043 www .electrov oice.com © Bosch Communications Systems 08/201 0 Part Number LIT000282 Rev E U.
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