Instruction/ maintenance manual of the product EVF-2121S Electro-Voice
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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.
An important point after buying a device Electro-Voice EVF-2121S (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Electro-Voice EVF-2121S yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Electro-Voice EVF-2121S - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Electro-Voice EVF-2121S you will learn all the available features of the product, as well as information on its operation. The information that you get Electro-Voice EVF-2121S will certainly help you make a decision on the purchase.
If you already are a holder of Electro-Voice EVF-2121S, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Electro-Voice EVF-2121S.
However, one of the most important roles played by the user manual is to help in solving problems with Electro-Voice EVF-2121S. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Electro-Voice EVF-2121S along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
