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Bosch EVF-1122D/126

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1. 650 305 600 1 575 Ib 261 kg 0 272 ned 249 500 227 a 204 g zw 181 t Table 9 z E E 159 5 WLL for M10 3 M 262 Ib 119 kg 30 eyebolts in the p 136 d EVI M10K 250 113 s o eyebolt kit 500 185 Ib 84kg 60 E 150 68 100 171 Ib 78 kg 90 50 23 0 0 0 10 20 30 40 50 60 70 80 90 Angle Degrees o o o 0 r A5 0 150 0 to 30 0 to 30 op recommended recommended Oc for main for main 415 suspension suspension for all line angle line angle applications Above 15 NOT TO BE Figure 25 Suspension line angle limits for individual eyebolts both in plane Q S of pull left and against plane of pull right Above 90 NOT TO BE USED Above 90 NOT TO BE USED Electro Voice EVF EVH User Manual 6 0 Rigging Strength Ratings and Safety Factors cont 6 32 Suspension Line Angles Refer to Table 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 If a higher safety factor than 8 1 is required the angle limitations for each eyebolt may actually decrease to a number less than what is shown in Figure 25 Always make sure that the suspension line is in the plane of the eyebolt as shown in Figure 17 Readjust the eyebolt during the installation if necessary to maintain this alignment
2. 60 MAX 60 Y y z Figure 26a Figure 26b All eyebolt suspension line angle limit All eyebolt suspension line angle limit independent suspension lines bridled suspension lines 6 33 Left to Right All Eyebolt Cluster Angles The suspended all eyebolt cluster must be perpendicular plumb to within X5 as shown in Figure 27 9 D MAX Figure 27 Left to right angle limits for an all eyebolt cluster angle shown exaggerated for illustration purposes Electro Voice EVF EVH User Manual 41 6 0 Rigging Strength Ratings and Safety Factors cont 6 4 VRK Rigging Structural Ratings for Vertical Clusters The guidelines for simplified vertical structural ratings cover the following information Tie points for eyebolts Left to right vertical cluster angles 1 Maximum length of the cluster 2 Maximum weight of the cluster 3 WLL for eyebolts 4 Trim angle 5 6 The majority of vertical clusters will be suspended using a combination of VRK vertical rigging kits and factory supplied eyebolts For a vertical cluster select the eyebolt position that results in the highest eye bolt strength as shown in Table 12 Different eyebolt positions are shown in Figure 28 Load Bearing Suspension Lines Points Max Cluster Weight See Eyebolt 475 Ib 216 kg Ratings Load Bearing Suspension Lines Points See Eyebolt Ratings Max Cluster Weight 475 Ib 216 kg
3. MAX CLUSTER LENGTH 7 5 ft 228 6 cm MAX CLUSTER LENGTH 7 5 ft 228 6 cm Y Figure 28a Figure 28b Load bearing suspension points used for positive or moderate negative trim angles 42 Load bearing suspension points used for more extreme negative trim angles Electro Voice EVF EVH User Manual 6 0 Rigging Strength Ratings and Safety Factors cont THE MAXIMUM LOAD MAXIMUM LENGTH AND EYEBOLT ANGLE RESTRICTIONS FOR VERTICAL CLUSTERS ARE LISTED IN TABLE 10 LIMITS FOR VERTICAL CLUSTERS ONLY Maximum Working Load Limit 7 5 ft 228 6 cm When using eyebolts refer to Table 12 and 482 Ib 219 kg as shown in Figure 27 Figure 29 for angle restrictions Table 10 Maximum load maximum length and eyebolt angle restrictions for vertical clusters Maximum Length Eyebolt Angle Restrictions Table 11 gives a brief guide to the cluster combinations possible within the WLL of the EVF and EVH enclosures LIMITS FOR VERTICAL CLUSTERS ONLY Maximum Number Minimum No of Eyebolt Angle of Enclosures Suspension Lines Restrictions EVH 1152 XX full range 4 See Table 12 and or EVF subwoofer 2 per side and Figure 29 EVF 1122 XX and or 4 See Table 12 EVF 12 low frequency 2 per side and Figure 29 Clustered Enclosures EVF 1152 XX and or 4 See Table 12 EVF 15 low frequency 2 per side and Figure 29 One EVF subwoofer and 4 See Table 12 four EVF 1122 XX 2 per side and Figure 29 Two EVF subwoofer and 4 See T
4. 295 kg 0 272 249 227 204 181 262 Ib 119 kg 30 159 185 Ib 84 kg 60 Working Load Limit kg 171 Ib 78 kg 90 Suspension line angle limits for individual eyebolts both in plane of pull left and against plane of pull right o Q O 20 Above 90 30 o NOT TO BE USED 40 Angle Degrees 0 to 30 recommended recommended for main suspension line angle 50 0 0 to 30 for main suspension line angle 60 70 V 006 Above 90 NOT TO BE USED 80 90 AS 0 15 i15 for all applications Above 15 NOT TO BE Electro Voice EVF EVH User Manual 6 0 Rigging Strength Ratings and Safety Factors cont 6 42 Left to Right Vertical Cluster Angles The suspended vertical cluster must be perpendicular plumb to within 5 as shown in Figure 30 Figure 30 Left to right angle limits for a vertical cluster angle shown exaggerated for illustration purposes Electro Voice EVF EVH User Manual 45 EVF EVH 6 0 Rigging Strength Ratings and Safety Factors cont 6 5 HRK Rigging Structural Ratings for Horizontal Clusters The guidelines for simplified horizontal structural ratings cover the following information Maximum height of the cluster Maximum weight of the cluster Cluster combinations per weight and heigh
5. 3 4 mm Allen hex wrench for removal and reorientation of the EVH hard foam mid frequency waveguide contours to rotate the mid frequency coverage pattern 4 6 mm Allen hex wrench for working with all rigging points 10 Electro Voice EVF EVH User Manual 3 0 Designing an EVF EVH Cluster 3 1 General Aiming and Placement Guidelines Loudspeakers should be pointed at the people and away from reflective room surfaces Since people are excellent absorbers of sound and room surfaces are often not this practice insures not only that the audience will receive the high frequencies necessary for good voice intelligibility and musical clarity but also that the reflective surfaces do not energize the room with intelligibility robbing reverberation Loudspeakers for sound reinforcement are usually located high above a stage or platform and aimed down and out into the audience This minimizes the difference between the longest throws to the rear of a venue and the shortest throws to the front rows promoting coverage uniformity Note that the typical portable loudspeaker on a short 6 foot stand cannot duplicate such uniformity since the distant seats are so much farther away than the front rows The direct sound from a loudspeaker drops 6 dB every time the distance from it doubles according to the formula Level loss dB 20lo0g closest distance farthest distance See comments on the audibility of different dB differences in section 3 4 Cover
6. Both the cluster s weight and center of gravity must be symmetrical about the cluster s center line For individual enclosure weights and centers of gravity refer to section 1 t 6 r ali alis c E c Ej a E Figure 33a Figure 33b Suspension of a symmetrical two over two Suspension of a symmetrical three over three horizontal cluster using HRK horizontal horizontal cluster using HRK horizontal rigging kits rigging kits Electro Voice EVF EVH User Manual 49 6 0 Rigging Strength Ratings and Safety Factors cont 6 54 Inner Connection Points 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 34 The maximum box to box angle is 45 WHEN RIGGING BOX TO BOX BOTH FRONT AND REAR TIE PLATES MUST BE CONNECTED E e Figure 34 Box to Box internal connection points of a horizontal cluster using HRK horizontal rigging kits 6 5
7. Eyebolt x4 Figure 1g Key dimensions for washers and eyebolts included with each loudspeaker M10 THREADED U BRACKET my C POINT ONLY EVF 12 INCH AND Be 1 690 1 690 EVF 15 INCH LOUDSPEAKERS T E RUN F 42 93mm is 42 93mm i 9 Py io 1 EET i zi 1 690 o 42 93mm i a ae io pu pod i Lae 690 ALL DIMENSIONS IN THIS VIEW 1 690 ARE ANGLED ALONG SIDE PANEL 42 93mm 42 93mm End View Side View Rear View Figure 1h Key suspension point dimensions for EVF or EVH loudspeakers as indicated in table below Dimension A B Cc B E EVF 12 inch 4 176 106 07mm 14 301 363 24mm 16 129 409 67 mm oam 18350 6 6m VF 15 inch 4 176 106 07mm 14 301 363 24mm EVF Subs 3 957 100 50mm 13 889 352 77mm 23 857 605 97mm 28 255 717 68mm de s 3 957 100 50mm 13 889 352 77mn 23 857 605 97mm 26 409 670 79mm 10 Table 2 Key suspension point dimensions as shown in figure above 8 Electro Voice EVF EVH User Manual 1 0 Introduction cont 1 1 Finishes and Colors Available The standard EVF EVH indoor versions are finished in tough EVCoat In addition all models are available in two levels of weather resistance indicated by letters following the coverage pattern numbers The FG versions e g EVF 1152S 64 FGB are de
8. HRK 2 Kit Sold Separately HRK 2 Kit Sold Separately 0 8 0 0 EVFFul Range 4 System 8 l D 6 4 EVF Subwoofer 7 Note Loudspeakers f are non specific and EVF Full Range ae d shown as an example System Figure 9 A way of separating two full range loudspeakers to reduce the audibility of multiple source interference by separating them with a subwoofer see text for more details Electro Voice EVF EVH User Manual 17 3 0 Designing an EVF EVH Cluster cont 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 DSP digital signal processor drive to the delayed system Figure 10 shows the dramatic smoothing achieved at 1 250 Hz Note that the systems are still close together as in Figure 6 LI ArraySHOW EV64 two 16 in amp 60 deg apart arr 5 gt File Edit Array Window Help Frequency SaaS remm d d 5 dB 3 a oa cel US mE m 100 feet to microphone Aiming x 10 dB steps 1250 Hz Figure 10 Horizontal polar response blue center plot of two closely clustered 60 x 40 loudspeakers aimed 60 apart showing the smoothing of multiple source interference caused by a 3 ms delay to one loudspeaker In clusters with more than two systems adjacent boxes are usually delayed While the effect can be predicted with appropriate software such as EASE 4 2 the
9. aC E G O E O B B E e eC FA Or Oc eC Oo Qe EVH Long Rigging 6 67 Ib EVH Short Rigging 3 04 Ib Plate x2 3 03 kg Plate x2 1 38 kg g 6 oO EVH Stabilizing 1 52 Ib Bar x2 0 69 kg maus ae M5 Split Lock M5 Screw M10 Screw x8 x8 M10 Split Lock Washer x8 24 Washer x8 VRK 3 rigging kit with parts identified Figure 14c Electro Voice EVF EVH User Manual 5 0 EVF and EVH Rigging System cont Oe QO Qr eO O ec OF oC O On f io Oo OS H 4 f H Os Os Os Os Oe QSO OoP EVF Or Or EVF EVF Or FO EVF EVF Long Rigging 7 33 Ib EVF Short Rigging 5 57 Ib Plate x2 3 33 k ioc addc M10 Split Lock M10 Screw Plate x2 2 53 kg Washer x8 x8 gp Figure 15a HRK 1 rigging kit with parts identified eC a T Oe cO T 4 e O Qs O Ors aC E O O O gG 5 A O O F i Q A O Or O EVF SUB Long 7 90 Ib EVF SUB Short 5 71 Ib Rigging Plate x2 3 59 kg Rigging Plate x2 2 59 kg M10 Split Lock M10 Screw Washer x8 x8 gp Figure 15b HRK 2 rigging kit with parts identified aC O t t Op Oa Oo T T D Oo O O O Or OS rel cO FS Or Oe eO Qe EVH Long Rigging 9 13 Ib EVH Short Rigging 5 50 Ib Plate x2 4 15 kg Plate x2 2 50 kg M10 Split Lock M10 Screw Washer x8 x8 wan Electro Voice EVF EVH User Manual Figure 15
10. change is clearly noticeable and a 10 dB change is twice or half as loud The 3 dB uniformity target is related to these perceptual differences Electro Voice EVF EVH User Manual 13 3 0 Designing an EVF EVH Cluster cont 3 5 Multiple Source Interference in Clusters Whenever two or more sources serve a single venue some seats will receive strong signals from multiple sources Consider two EVF 1122S 64 60 x 40 systems clustered side by side with their axes 60 apart to form a 120 x 40 cluster If these systems maintained their rated coverage patterns into the low frequency range there would be essentially no interference But the 12 inch square waveguides used in the EVF series will begin to balloon out at about 2 kHz and below an effect discussed in Section 3 21 Directivity Break Frequency Defined above On the axis of the cluster the output of both systems sums perfectly since the listener is equidistant from each system and the output of both reaches the listener at the same time This is the axis of cluster line shown in Figure 4 If the listener moves to the left as viewed in the figure the left loudspeaker will be closer and the sound will arrive sooner At some angle and at some frequency the time difference will be equivalent to reversing the polarity of one signal causing a complete cancellation of cluster output at that frequency AXIS OF CLUSTER LEFT RIGHT amp LOUDSPEAKER LOUDSPEAKER
11. from 40 x 30 to 90 by 90 as detailed in Table 1 EVF 1121S 12 inch low frequency system EVF 1151S 15 inch low frequency system EVF 1181S 18 inch subwoofer system EVF 2121S Dual 12 inch low frequency system EVF 2151D Dual 15 inch subwoofer system 1 3 EVH Horn Loaded Series Note that engineering data sheets with complete specifications are packed with each system and down loadable at www electrovoice com EVH 1152S 43 EVH 1152S 64 EVH 1152S 66 EVH 1152S 94 EVH 1152S 96 EVH 1152S 99 EVH 1152D 43 EVH 1152D 64 EVH 1152D 66 EVH 1152D 94 EVH 1152D 96 EVH 1152D 99 two way 15 inch full range systems with six different rotatable high frequency waveguides ranging from 40 x 30 to 90 x 90 and mid frequency waveguide contours as detailed in Table 1 Electro Voice EVF EVH User Manual 9 1 0 Introduction cont 1 4 Accessories for EVF and EVH Systems Note that some accessories are supplied with certain system versions as noted CDG optional dual gland nut input panel cover to protect the input connections from water Note that this cover is supplied with the weather resistant versions CSG optional single gland nut input panel cover to protect the input connections from water CDNL4 optional input panel cover equipped with dual Neutrik Speakon NL4M connectors providing a quick disconnect alternative to the standard Phoenix screw terminal input connectors HRK and VRK a series of horizontal HRK a
12. the same from the left to the right sides of the rigging plate The EVF to EVF subwoofer rigging plates are asymmetrical meaning that one side is for subwoofers labeled Sub and the other side is for EVF s labeled EVF This rigging plate must be flipped over depending on which side the subwoofer is on This asymmetry is shown in Figure 15b All user supplied hardware must be overhead load rated using applicable safety factors for the specific cluster See section 6 0 for additional details on load limits and safety factors 5 2 EV I Rigging Primer The following sections describe the clustering of EVF and EVH systems using one of the following three approaches 1 EVI M10K eyebolt kits supplied with each system used in conjunction with other user sup plied hardware 2 Optional VRK vertical rigging kits in conjunction with the supplied eyebolt kits and user supplied hardware 3 Optional HRK horizontal rigging kits in conjunction with the supplied eyebolt kits and user supplied hardware In all cases note that the weight of the cluster can be substantial and the building structure must be ca pable of supporting the weight System weights are given in Figure 1 The optional VRK and HRK rigging kits are the most convenient way to assemble EVF and EVH clusters offering a great deal of flexibility in box aiming angles Using the supplied eyebolt kits with additional user supplied hardware is more difficult but does allow
13. 22 VRK Kits and Vertically Rigged Clusters 5 23 HRK Kits and Horizontally Rigged Clusters ssssseseeesseeeete tentent tente tnn tette ttn tette tint tates 5 24 Assembly Instructions for VRK and HRK Kits er enda ga anganan DN gaga Tana KEN Gana aga AKAN aing iang 6 0 Rigging Strength Ratings and Safety Factors sesenta gain a di NGNE e aa ENENG Aak aan ad aeng angka aa 6 1 Working Load Limit and Safety Factor Definitions sse insane ttnntn trente TiGA TO DAGANE 6 2 Siructural Rating OVerVi6Wa MA 6 3 All Eyebolt Structural Ratings tnter teret rsen Ie hi daadaa tera ANNA E aga aana NGA 6 31 Working Load Limits for Eyebolts tritt tentent eene cei tinte nra tir in ater id 6 32 Suspension Line Angles itt itc tnnt er trc ti ER ce tege t ded eme tlc Ere Ee nene ape NGENE NGAEN 6 33 Left to Right All Eyebolt Cluster Angles essent tenen Kagan Ega sta titt testae tutta ttes taa 6 4 VRK Rigging Structural Ratings for Vertical Clusters siaina ai tentent tentent tnn 6 41 Working Load Limits for Eyebolts used with VRK Vertical Rigging Kits 6 42 Left to Right Vertical Cluster Angles ntt aiaa aiana 2 Electro Voice EVF EVH User Manual Table of Contents cont 6 5 HRK Rigging Structural Ratings for Horizontal Clusters sese tnnte tentent trente tren tentant tnn 46 6 51 Using Tie Plates as Main Load Bearing SUSPENS
14. 5 Left to Right Horizontal Cluster Angles The suspended horizontal cluster must be perpendicular plumb to within X5 as shown in Figure 35 Figure 35 Left to right angle limits for a horizontal cluster angle shown exaggerated for illustration purposes 50 Electro Voice EVF EVH User Manual Ey 6 0 Rigging Strength Ratings and Safety Factors cont 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 misaligned with the plane of the eyebolt Larger clusters pose more of a concern because more surface area exists for the wind to act upon Counteracting these effects requires the use of addi tional suspension lines and or stabilization lines to reduce the potential overloading of the existing suspen sion lines IT IS THE RESPONSIBILITY OF THE USER TO ENSURE THAT ALL CLUSTERS ARE N SUSPENDED SAFELY UNDER ALL CONDITIONS IT IS RECOMMENDED TO CONSULT A STRUCTURAL ENGINEER WHEN WINDS ARE ANTICIPATED It is recommended that all loudspeakers and rigging components are inspected after high wind conditions have occurred 6 7 Electro Voice Structural Analysis Procedures Electro Voice maintains a structural pull test facility in Burnsville Minnesota USA which includes load cells with digital electronic dis
15. 6 787 26 600 28 598 426 39m mm 7 eu T 675 64mm 726 38mm End View SUSPENSION Front View Side View Rear View POINTS 7 PER END Figure 1g Key dimensions suspension points weight and center of gravity for EVF 2151D S System Weight D System Weight M10 THREADED M10 THREADED 143 0 Ib 64 9 kg 145 5 Ib 66 1 kg B CENTER SUSPENSION POINTS SUSPENSION POINTS 20 6 PER SIDE 2 ON REAR epee TT Oe E LU uu ES 5 o e Ld d s MH a 5 bo KN 0 0 30 258 ho o i 768 55mm e e l a 12 648 sioe hrs 321 25mm o b 384 28mm 9 e e pa oe IE Eni e e e s RN d 21 089 30 261 26 774 535 66mm 768 62mm 680 06mm M10 THREADED End View SUSPENSION Front View Side View Rear View POINTS 7 PER END Figure 1h Key dimensions suspension points weight and center of gravity for EVH 1 152 all coverage patterns Electro Voice EVF EVH User Manual 7 EVF EVH 1 0 Introduction cont 1 772 1 122 01 445 236 70mm 45 00mm 28 50mm 20 520 M10 Threads 213 21mm A5 2 92mm aiit Thick 47 00mm 228 00mm Washer x4
16. 60 L Been q x w p o ow x Eie o0 Po 0 o J sr t EN cx pow Jos ecd se Table 1a Coverage patterns available in the EVF and EVH series all rotatable The model number scheme denotes the number of woofers the diameter of the woofers the number of band passes in the system the woofer series used and following a forward slash the coverage pattern An example is the EVF 1122S 96 which has a single SMX series 12 inch woofer in a two way configura tion and a 90 x 60 pattern Another example is the EVF 1181S subwoofer which has a single EVS 18S 18 inch woofer in a one way configuration and without a specific coverage pattern essentially omnidi rectional in the very low frequency range in which it is usually operated 4 Electro Voice EVF EVH User Manual 1 0 Introduction cont Model Name As Shown Model Name Separated Loudspeaker Family Series EVF Series Description EVF 1122S 96 example Number of Woofers 1 Woofer Table 1b Woofer Diameter 12 inch Number of Band Passes Two Way Woofer Series Used SMX Series Coverage Pattern 90 x 60 Model number scheme showing the meaning of each individual model number Typical EVF and EVH systems are shown in Figure 1 with key dimensions suspension points weights and centers of gravity Engineering data sheets for each model containing full specifications and dimen sional drawings are shipped wit
17. A 1995 6 Wire Rope Technical Board Wire Rope Users Manual American Iron and Steel Institute Stevensville MD USA 1985 7 Broderick amp Bascom Rope Company Rigger s Handbook Sedalia MO USA 1993 8 MacWhite Wire Rope Company Catalog of Tables Data and Helpful Information Kenosha WI USA 1991 9 Acco Chain amp Lifting Division Chain Sling User s Manual Acco Corporation York PA USA 1992 10 Newberry W G Handbook for Riggers Newberry Investments Company Calgary Alberta Canada 1989 8 2 Mechanical Engineering printed 1 R C Hibbeler Engineering Mechanics Statics amp Dynamics Pearson Prentice Hall Upper Saddle River NJ USA 2005 2 R C Hibbeler Mechanics of Materials Pearson Prentice Hall Upper Saddle River NJ USA 2005 3 J L Meriam amp L G Kraige Engineering Mechanics Volume One Statics John Wiley amp Sons Inc New York NY USA 1992 4 J L Meriam amp L G Kraige Engineering Mechanics Volume Two Dynamics John Wiley amp Sons Inc New York NY USA 1992 5 J E Shigley amp C R Mischke Mechanical Engineering Design McGraw Hill Book Company New York NY USA 1989 8 3 Rigging Web sites 1 http www rigging net 2 http www cmworks com 3 http catalog thecrosbygroup com maininterface htm Electro Voice EVF EVH User Manual 53 EVF EVH Notes 54 Electro Voice EVF EVH User Manua Notes Electro Voice
18. An example is EASE 4 2 Enhanced Acoustic Simulator for Engineers developed by Acoustic Design Ahnert www ada acousticdesign de EASE is available from the Bosch Communications Systems Electro Voice technical support group specific contact information can be found at www electrovoice com EASE loudspeaker data for EVF and EVH systems may be downloaded at www electrovoice com A common practice is to widen the horizontal coverage of a single loudspeaker by placing two systems side by side and aiming them in such a way that their horizontal patterns do not overlap Individually each system will be 6 dB down at the overlap point Together at the overlap point they will sum coherently to the O dB on axis level A specific example is two 60 horizontal systems clustered together with their axes placed 60 apart If these two systems are underlapped with say their axes 75 apart the overall coverage angle will be wider but the level near the array axis will drop If the two systems are overlapped to any great degree e g their axes only 45 apart the overall coverage angle will be reduced and the interference discussed in section 3 5 Multiple Source Interference in Clusters will be worsened The degree to which long throw devices can extend the region of uniform coverage is limited A single loudspeaker will typically reach to the rear a distance that is about twice that of the distance to the clos est front row See Figure 2 12
19. EVEJEMH 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 Live For Sound EVH 1152D All Patterns www electrovoice com EVEJEWVH Table of Contents Rigging Salety Uu M Aanand 3 Bebe EE ET AN ANK SN anana A an ana a 4 1 1 Finishes and Colors Avallable ricette tiet tenerse duets s ecsesessstasn dznguesatantucrantanedigancdeshnestvanestes eaienees 9 1 2 EVP Front Loaded Series tette rci derer ne iita ie ie itin aa cust es da de ra tede rates 9 1 3 EV Horn Loaded Series arsaa gasangan ga ga anana anga SAN diigii NANG ANGGA ANGGANA NANANG NG NAN GA NGANAN ANAKE 9 1 4 Accessories for EVF and EVH Systems ttt etre ttai nra a nag AN GA eerte isl qa debe teca soos tr KANG ANA NGANGEN AG a YAHENE 10 20 Tool ist E E aa succ cU LI dU I MR EAE MID LIES 10 3 0 Designing ani EVE EVE Cluster lt cc ccccsecsccassscscecsnsicesesensassasetsescesssnsedeianeasoueeananertensragecasanecacnstantetrastustaudadenseussansarsasenssatduteassiesausasegscaranerase 11 3 1 General Aiming and Placement Guidelines 0 0000000000000000 eaaa niin aa ea amanea ane anane anana en anan tten tenta en eaaa nenen nenen ene 11 3 2 Choosing between the
20. EVF EVH User Manual 55 EI t y H U S A and Canada only For customer orders contact Customer Service at e cC ro o I ce 800 392 3497 Fax 800 955 6831 Europe Africa and Middle East only For customer orders contact Customer Service at 12000 Portland Avenue South Burnsville MN 55337 49 9421 706 0 Fax 4 49 9421 706 265 Phone 952 884 4051 Fax 952 884 0043 Other Internatonal locations For customer orders Contact Customer Service at 1 952 884 4051 Fax 1 952 887 9212 www electrovoice com For warranty repair or service information contact the Service Repair department at Bosch Communications Systems 05 2011 800 685 2606 Part Number F 01U 241 440 Rev 07 For technical assistance contact Technical Support at 866 78AUDIO Specifications subject to change without notice
21. EVF Full Range and EVH Full Range Systems sesenta tenen 11 3 21 Directivity Break Frequency Defined sess tente tentente tente ee anan ee en anana een nen tens 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 tentent 12 3 31 Basic Clustering Guidelines essei nganggen anana tenten tette theta ttes NANA Si aeng dageng a Yana 34 aeneum G M M iia S 3 5 Multiple Source Interference in Clusters 3 51 Reducing Multiple Source Interference e00000 00000 een a0 ea anon aa ea amanea anan aa a anna naen anan aaee nne ee een nenen nenen ene 16 4 0 Preparing EVF and EVH Systems for Installation seen ee anan an ene anon e anna ae en nen ttes en genenan eee ttal 19 4 1 Recommended Preflight Proced res net ttm nr retten ta nectare tied iesise EEN NA GENG ra ea amr 19 4 2 Passive Biamp Crossover Config ration ntt rentas eipessanaiegssneacsaeiactatzaneaseantancaatensetaaseaneaetses SONGA 19 4 3 Rotation of High Frequency Waveguides EVF Systems 00000000000000 stesse sennn tentent NE NAGA 20 4 4 Rotation of High Frequency Waveguides and Mid Frequency Waveguide Contours EVH Systems cio NK Ka NA KA A ts r estas Gee tae pei in bb ie daria b ko NR o PER
22. EVH User Manual 5 EVF EVH 1 0 Introduction cont z M10 THREADED System Weight a i i a 4 0 CENTER 57 7 Ib 26 2 kg e OE GRAVITY 4 PER SIDE M10 THREADED SUSPENSION dee POINTS gih o y 2 ON REAR 30 258 768 55mm e e it 14 250 361 95mm 9 086 230 78mm l M10 THREADED d Pr TN rem 7 647 SUSPENSION 15 996 16 273 775 19423mm TT 5 PER END 406 29mm 413 33mm End View Front View Side View Rear View Figure 1c Key dimensions suspension points weight and center of gravity for EVF 1121S A i gq M10 THREADED System Weight SUSPENSION m POINTS b 62 6 Ib 28 4 kg e CENTER 4 PER SIDE 30 M10 THREADED SUSPENSION a POINTS 2 ON REAR 30 258 768 55mm e e iJ 14 531 369 09mm 10 444 265 28mm o M10 THREADED 0 0 SUSPENSION i d POINTS 9 000 18 498 18 369 E S 8 PER END 469 84mm ii 466 57 mm End View Front View Side View Figure 1d Rear View Key dimensions suspension points weight and center of gravity for EVF 1151S System Weight 101 2 Ib 46 0 kg 20 426 39mm End View CENTER M10 THREADED M10 THREADED O
23. Electro Voice EVF EVH User Manual 3 0 Designing an EVF EVH Cluster cont 90 x 40 example side view 40 vertical angle 6 dB down x Z D distance long System aiming axis Figure 2 Typical reach of a single loudspeaker into a venue D in order to maintain the desired 3 dB coverage is about two times the distance to the closest seats D D distance short 10 floor slope Adding a long throw device will typically extend this reach to about three times the closest distance See Figure 3 D D 2 7 D distance long D distance short Figure 3 Adding a long throw device extends the reach to about three times the distance to the closest seat For reaches beyond this loudspeakers can be suspended over the audience with their signal delayed with respect to the front or source loudspeakers so that the sound image will appear to come from the front of the room The details of these design tips are beyond the scope of this manual and should be left to experienced design personnel 3 4 Coverage Uniformity Target A good uniformity target is 3 dB throughout the audience area particularly in the 2 000 and 4 000 Hz octave bands the bands most important for intelligibility Such coverage should also be achieved in the 8 000 Hz band important for sparkle As a reference a 1 dB level difference is nearly imperceptible a 3 dB difference is noticeable but not a large change a 6 dB
24. F GRAVITY SUSPENSION POINTS SUSPENSION POINTS 6 PER SIDE 2 ON REAR H rl IE e e a bad e od 30 258 768 55mm e 15 129 384 28mm e e 2 tad d Lj 1 a 26 600 28 598 M10 THREADED QU emm 726 38mm suspension Front View Side View Rear View POINTS 7 PER END Figure 1e Key dimensions suspension points weight and center of gravity for EVF 1181S Electro Voice EVF EVH User Manual 1 0 Introduction cont System Weight 82 4 Ib 37 4 kg CENTER OF GRAVITY M10 THREADED U BRACKET POINT ONLY 279 07mm 1 PER END M10 THREADED ye RF SUSPENSION Er M End View 30 258 768 55mm M10 THREADED SUSPENSION POINTS b 4 PER SIDE M10 THREADED SUSPENSION POINTS 2 ON REAR 15 129 384 28mm 18 498 469 84mm Front View 18 369 C 466 57mm Side View Figure 1f Rear View Key dimensions suspension points weight and center of gravity for EVF 2121S System Weight M10 THREADED M10 THREADED 117 0 Ib 53 1 kg Mmi deed SUSPENSION POINTS SUSPENSION POINTS UC 0 EE 6 PER SIDE 2 ON REAR C il 1 4 o 9 pad e LE NET ro S Z 30 258 768 55mm e 17 050 C 15 129 433 07 mm O 384 28mm e amp pad 1 a 1
25. Hn ect Lek Ta no erba dd 20 4 5 Digital Signal Processing tet tete trente ct erp rant Fra ER Fete an 21 4 51 Full Range Systems in Passive Mode rettet rtr tra neret tnt tiat ine tni tet apu tui nic E SAKES 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 eee 4 53 DSP Digital Signal Processor Loudspeaker Presets for Biamp Operation 5 0 EVF and EVH Rigging System sasaran anginan an aaa rte tte nte triente tic iret tratta m spel ansinesedsateinateanessstetasTensacredsasdapeseesstarbaxnach meni 5 11 The Flying EV Innovation EV I Loudspeaker System eene tnnt 5 12 Important Details that Apply to the VRK and HRK Rigging Kits 000000e0000n ene naae anan an anan manna ena naen anna ne ene 5 2 EVM Rigging PIMEN scc ccce cache tiem rient ee tentes ante tn teint emer npe stra Penal NG AG TG ANENG aa aa gan an Kenaa ng Aa 5 21 Anatomy of an EVF or EVH Flying System Using M10 Eyebolts ssssssssseseneeene tentes 5 211 Eyebolt Application Warnings esses eee galan nen ana ajan kaka bana tastes ttt daga ngka nibani 5 212 esuiime M 5 213 All Eyebolt Clusters irte rictu teniente ttn tmt tne tit inerte rette tet teen eet niae eae iga nin aini 5
26. ION cece nese 00 aa ena 0 aa en anana en nana ne anon trennt tentent 47 6 52 Suspension Line Angles Tor ARK Kits tienne ttt ga ANANA ANANGENG tenete arcere eheu ANAN 48 6 53 Symmetry for Horizontal Clusters using HRK Kits sse anana 49 6 54 Inner Connection Points tM 50 6 55 Left to Right Horizontal Cluster Angles sasarane anaa aaa ana ag a enA aa NGANA nagan Gn A DKG NANG DAN aiia AG NAhe an 50 6 6 Ratings for Outdoor Applications with Wind Loading essent tente ttnnte en ana en nne nenen ten 51 6 7 Electro Voice Structural Analysis Procedures uu secession nese cence ee an nan een anon aana anan anana anna anan an anana tos 51 70 TANG Inspection and Preeaulloris 5 cete ttr ctore ANTA A GEN RASEKSA TRANG n DANA Ena BATAN NG ERRARE RAES TANANAN AA AAN 52 HM MR P eat dai AA ENERGI aa sagang a dana DN Naane 53 8 1 Rigging PAN asset cs cascades te cece asec cca cece eect ees cect eee cease cee ate 53 8 2 Mechanical Engineering rit cc seca cad aca Pet pentes tS atts ace aed edt NAGA cide ttn lut eee 53 En Rigging a alse ce etc Lee e etant tatss Ten aaae iee andina AKNG KANGA nb LL het 53 INQUGS P E E E E E A E E akan SANAN dah fndsh Ativest tia aan dah anes fatateas ssenaetdvestavest gartughviuentaetsd 54 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 lo
27. N large format 1 4 inch exit 3 inch dia phragm compression driver Both compression drivers have neodymium magnetic structures In general the premium components in the D versions provide lower distortion and reduced power compression The EVH series is a group of larger two way horn loaded full range systems Both the S and D EVH versions use SMX low frequency transducers The D versions substitute the DH7N large format com pression driver for the ND2B medium format driver All full range systems utilize high order crossover networks that seamlessly integrate the low frequency transducers with the high frequency compression drivers providing very low distortion and excellent fre quency response The EVF EVH systems have many threaded rigging points that can be used with the supplied eyebolt kits or optional suspension kits to easily create a number of horizontal or vertical cluster configurations All enclosures in their normal orientations long axis vertical share the same height just over 30 inches 762 mm promoting attractive clusters Six coverage patterns all rotatable are available in each family as shown in Table 1a The EVF 1121S and EVF 1151S low frequency systems have integral low pass filters that allow paralleling them with up to two full range systems offering a cost effective way to augment the low frequency output of EVF full range systems Horn Pattern 40 x30 602440 60 x60 902440 902460 290 x90 120 x
28. Strength Ratings and Safety Factors cont 6 52 Suspension Line Angles for HRK Kits Suspension line angles are restricted to 30 off the axis of the tie plate s center line Figure 32 shows the angle limitations recommended for horizontal clusters when using HRK kits 60 MAX Figure 32a Horizontal cluster suspension line limit left to right independent suspension lines 60 MAX Figure 32c Horizontal cluster suspension line limit left to right bridled suspension lines 48 60 idus 4 o o o o 9 e Figure 32b Horizontal cluster suspension line limit front to back independent suspension lines a Figure 32d Horizontal cluster suspension line limit front to back bridled suspension lines Electro Voice EVF EVH User Manual 6 0 Rigging Strength Ratings and Safety Factors cont 6 53 Symmetry for Horizontal Clusters using HRK Kits The cluster s center of gravity is centered under the two suspension points in a two over two cluster see Figure 33a or between the suspension points in a three over three cluster see Figure 33b
29. able 12 two EVF 1122 XX 2 per side and Figure 29 One EVF subwoofer and 4 See Table 12 three EVF 1152 XX 2 per side and Figure 29 Two EVF subwoofer and 4 See Table 12 two EVF 1152 XX 2 per side and Figure 29 Table 11 Possible vertical cluster combinations within the WLL of each enclosure For clusters with trim angles between 20 and 10 or where a rear pull back will not be used the four eyebolt attachment points on the top surface of the vertical cluster should be used Electro Voice EVF EVH User Manual 43 EVF EVH 6 0 Rigging Strength Ratings and Safety Factors cont 6 41 Working Load Limits for Eyebolts used with VRK Vertical Rigging Kits Eyebolts are the most convenient way to suspend vertical clusters Eyebolts attach to the EVF and EVH enclosures through the integral M10 1 5 attachment points Section 5 21 Anatomy of an EVF or EVH Fly ing System Using M10 Eyebolts should be reviewed at this time for more information on eyebolt alignment and positioning on the enclosure Table 12 shows the WLL per eyebolt with respect to the angle of the applied load Figure 29 shows the suspension point angles that are referenced in the table It is a good idea to stay within 30 of the maximum WLL of the eyebolt straight up position for main suspension lines 44 650 600 550 500 gt 450 400 Table 12 E on WLL for M10 E eyebolts in the 27 EVI M10K m 250 eyebolt kit 200 150 100 50 0 Figure 29 575 Ib 261
30. actual delays are typically established in the field during system setup and commissioning by ear and measurements 18 Electro Voice EVF EVH User Manual 4 0 Preparing EVF and EVH Systems for Installation 4 1 Recommended Preflight Procedures For any installed sound system certain checks made at the installer s place of business can prevent ex pensive on site delays A short list follows and sets the stage for proper cluster performance Unpack all loudspeakers in the shop Check for proper model numbers Check the overall condition of the loudspeakers Check for continuity at the loudspeaker inputs p MI It is a good idea once on site and the loudspeakers are connected to check again for continuity at the power amplifier end 4 2 Passive Biamp Crossover Configuration All two way EVF and EVH systems are shipped in the passive crossover mode In the center of the input panel is an external switch card that can change this configuration See Figure 11 Note that EVH input panels when the systems are in their normal slanted sides vertical orientation have their long axes ro tated 90 with respect to the EVF view of Figure 11 EVF 11525 66 FRONT LOADED SINGLE 15 Figure 11 EVF EVH input panel as supplied with the passive biamp switch card in its full range passive position left position in picture as oriented Electro Voice EVF EVH User Manual 19 EVF EVH 4 0 Preparing EVF and EVH Systems for Installation
31. age Uniformity Target 3 2 Choosing between the EVF Full Range and the EVH Full Range Systems When the reverberation time of a room formally called T60 and the time it takes sound once the source has stopped to decay by 60 dB exceeds 2 2 5 seconds at mid frequencies the horn loaded EVH series should be used The EVH s low frequency horn mouth is large enough to control the rated coverage pat tern down to 500 Hz which promotes clarity by keeping more sound off of reflective surfaces than can the smaller 12 inch square horns and direct radiating woofers of the EVF series This concept is explored in more detail below 3 21 Directivity Break Frequency Defined Below a certain frequency the mouth size of a waveguide is no longer large enough to maintain the nomi nal coverage angle and the coverage angle gets wider and wider as frequency is decreased The fre quency at which this occurs is called the directivity break frequency f and is inversely proportional to the size of the waveguide mouth and the nominal coverage angle of the waveguide The directivity break frequency can be approximated by the following formula f Hz 1 000 000 angle degrees x dimension inches Electro Voice EVF EVH User Manual 11 3 0 Designing an EVF EVH Cluster cont 3 3 More on Coverage Patterns Multiple Coverage Patterns the Need for Clusters of Loud speakers and How Far a Single Cluster Can Reach into a Venue The coverage patterns o
32. al hang of an EVF subwoofer on top and two EVF full range systems below using one each VRK 1 and VRK 2 kits optional acces sories and four eyebolts supplied with systems using an extreme trim angle Electro Voice EVF EVH User Manual Stabilizer Bars Figure 21b Basic three enclosure vertical hang of an EVF subwoofer on top and two EVF full range systems below using one each VRK 1 and VRK 2 kits optional acces sories and four eyebolts supplied with systems using a more extreme trim angle 31 EVF EVH 5 0 EVF and EVH Rigging System cont 5 23 HRK Kits and Horizontally Rigged Clusters The main difference between the HRK and the VRK rigging kits is the addition of a tie plate in the center of the rigging plate Tie plates are identified in Figure 22 AN MAIN SUSPENSION LINES AND PULL BACKS MUST BE TIED TO THE TIE PLATES Enclosures may be suspended below using the HRK rigging kits Connection between the enclosures through the tie plates within the HRK kits requires hardware supplied by the end user All user supplied hardware must be rated for overhead lifting The angle between the two enclosures as well as the angle between the first enclosure and the structure can be controlled by the length of the user supplied hard ware If the desired angle cannot be achieved by varying the length of this hardware then pull back points can be used It is recommended that both the top and the second box use a pull back A pu
33. c HRK 3 rigging kit with parts identified 25 EVF EVH 5 0 EVF and EVH Rigging System cont 5 12 Important Details that Apply to the VRK and HRK Rigging Kits Both the VRK and HRK kits include all necessary mounting hardware as shown in Figures 14 and 15 Additionally the VRK kits include a set of low profile stabilizer bars to both simplify alignment of the enclo sures during the rigging process and keep the front edges of the systems neatly aligned Additional hard ware is included in the VRK kits to mount these stabilizer bars The stabilizer bars mount to the insides of the vertical rigging plates for a clean appearance Stabilizer bars can be seen in Figure 14 and installed in Figure 21 The HRK horizontal rigging kits have a tie plate that is welded to the center of the rigging plate This tie plate is for suspending the top systems in a cluster and for suspending lower systems below with user supplied hardware It has six holes that fit a standard 5 8 inch shackle user supplied Tie plates can be seen in Figure 15 and installed in Figure 22 Both the VRK and the HRK rigging plates use arrow designators and a series of letters by each of the mounting holes to ensure that the desired angle is achieved Refer to Tables 5 6 and 7 for a description of the appropriate arrow direction and letter All rigging plates except the EVF to EVF subwoofer rigging plates are symmetrical meaning that the mounting hole layouts are
34. cessor DSP for crossover from the low frequency to the full range systems As many as two full range systems can be paralleled with an EVF low frequency system on a single power amplifier channel capable of driving a 2 1 ohm minimum impedance This simplified cost effective configuration is most appropriate for applications that require only moderate or moderately high acoustic output This is because the full range systems cannot have the full infrasonic protection provided by the high pass filters specified in Table 3 However useful overall cluster protection will be provided by employing the high pass frequency recommended for the particular EVF low frequen Cy System used Note that the EVF 1181S EVF 21215 and EVF 2151D do not incorporate a low pass filter 4 53 DSP Digital Signal Processor Loudspeaker Presets for Biamp Operation In the biamp mode the crossover and equalization must be achieved external to the loudspeaker This is typically done with a digital signal processor DSP that has crossover and equalization filters that are adjusted by the manufacturer to provide the essentially flat frequency response mentioned above The fac tory presets for the EVF and EVH loudspeakers have been determined for Electro Voice processors and are available for download at www electrovoice com Presets for other popular processors often can be provided by the Bosch Communications Systems Electro Voice technical support group specific contact in
35. cont To configure for biamp operation remove the switch card by drawing it toward you using the central finger hole The switch can also be removed with the end of a flat blade screwdriver by placing the blade end in the switch hole and using the adjacent edge of the input panel as a fulcrum To facilitate this operation there is a small recess in the edge of the input panel adjacent to the hole in switch card Reinsert the switch card in its biamp operation position right position in the picture of Figure 11 4 3 Rotation of High Frequency Waveguides EVF systems All high frequency waveguides have their horizontal and vertical patterns molded in for easy identification of orientation and are rotatable according to the following procedure LE 2 3 4 With a 2 Phillips screwdriver remove the four screws on each side of the enclosure and pop the grille out With a 2 Phillips screwdriver remove the 12 screws holding the compression driver waveguide assembly Rotate the assembly 90 and reinstall Reinstall the grille 4 4 Rotation of High Frequency Waveguides and Mid Frequency Waveguide Contours EVH systems 1 2 3 4 5 6 7 8 20 With a 2 Phillips screwdriver remove the four screws on each side of the enclosure and pop the grille out With a 2 Phillips screwdriver remove the four screws holding the compression driver HF waveguide assembly Use a 6 mm Allen hex wrench to remove the two rails t
36. d hardware must be rated for overhead lifting The angle between the two enclosures as well as the angle between the first enclosure and the structure can be controlled by the length of the user supplied hardware If the desired angle cannot be achieved by varying the length of this hardware then pull back points can be used It is recommended that both the top and the second box use a pull back The pull back can be achieved with the use of additional M10 eyebolts at the back of the enclosures The hardware used to achieve the pull back is supplied by the end user A MINIMUM OF TWO EYEBOLTS ARE REQUIRED FOR SUSPENSION OF ALL EYEBOLT A MAXIMUM OF TWO ENCLOSURES IS ALLOWED WITH ALL EYEBOLT CLUSTERS CLUSTERS U Bracket Point Only Not for Eyebolt Suspension ISI S A si Y S e Figure 19a Figure 19b Figure 19c A two system vertical cluster A two system vertical cluster A two system vertical cluster using the eyebolt kit supplied with using the eyebolt kit supplied with using the eyebolt kit supplied with each system plus user supplied each system plus user supplied each system plus user supplied hardware not shown using a hardware not shown using a hardware not shown using an moderate trim angle more extreme trim angle extreme trim angle Electro Voice EVF EVH User Manual 29 EVF EVH 5 0 EVF and EVH Rigging System cont A horizontal two cabinet eyebolt hang shown in Figure 20 is similar to a ve
37. e only those bolts that are going to be replaced by rigging hardware in order to remain safe and avoid audible enclosure leaks Using the appropriately lettered rigging plate holes attach the VRK or HRK kits to the en closure sides using the eight supplied M10 button head bolts and split lock washers Use a 6 mm Allen hex wrench Install any M10 eyebolts that are needed for suspension pull back or stabilization at this time Ensure that all M10 bolt points in the enclosure have an M10 flathead bolt an M10 eyebolt or an M10 button head bolt where the rigging plates attach Do not hang any cluster with missing M10 bolts Check all M10 and M5 fasteners and eyebolts to ensure they are tight You are now ready to hoist the cluster and make the final attachments to the building struc ture Electro Voice EVF EVH User Manual 35 5 0 EVF and EVH Rigging System cont Letter Rigging Plate Arrow Direction Angle Hole to Hole Dim Position both rigging plates 9 Short Bar Long Bar 6 276 159 41mm Shotinfent Toward arite o iklas 5 958 151 33mm B shortinfront Tewardgrile 5 wabin 5 630 143 00mm Table 5 Shortin tront Toward grie 5 292 134 42mm For clustering EVF full range and D Shortin tront Toward gril low frequency not subwoofer ra Long in front Toward input panel E vet bises M regens Cr ummton Tewaa mauganar as mtm HRK 1 rigging kits ong in fron oward input pa
38. e to EVF subwoofer or EVH full range Plates may need to be flipped depending on which side is being connected due to asymmetry of the plates Table 4b VRK 2 or HRK 2 connection HRK 2B HRK 2W Horizontal Cluster Model Orientation Color Function VRK 3B Vertical Black EVF subwoofer and VRK 3W Cluster White EVH full range HRK 3B Horizontal Black EVF subwoofer and HRK 3W Cluster White EVH full range Table 4c VRK 3 or HRK 3 connection 23 EVF EVH 5 0 EVF and EVH Rigging System cont Os Or Qs O Oc OE ep iT o V amp Oo Oo T oT ASD a i fs O e M5 Split Lock or a E BG O O Washer x8 p O 2 EVF Or Or EVF EVF Or FO EVF EVF Long Rigging 4 87 Ib EVF Short Rigging 3 11 Ib Plate x2 2 21 kg Plate x2 1 41 kg o o o EVF Stabilizing 0 88 Ib M10 Split Lock M5 Screw M10 Screw Bar x2 0 40 kg Washer x8 x8 x8 Figure 14a VRK 1 rigging kit with parts identified ES o 4 Os r o to T g P O MS Split Lock M esr QOO O oC T Q Oo O Washer x8 OF 5 E i EVF SUB Long 5 44 Ib EVF SUB Short 3 25 Ib Rigging Plate x2 2 47 kg Rigging Plate x2 1 48 kg O AAN EVF Stabilizing 0 88 Ib M10 Split Lock M5 Screw M10 Screw Bar x2 0 40 kg Washer x8 x8 x8 Figure 14b VRK 2 rigging kit with parts identified O aC oC t Ope Oa A CO t O T D O
39. eliminated but it can be substantially reduced Systems which have radiating devices large enough to hold their rated coverage angles down to relatively low frequen cies such as the horn loaded EVH series that hold their coverage angles down to 500 Hz will exhibit less interference in clusters Also doubling the distance between the two systems of Figure 8 produces multiple interference nulls which are more densely packed than those of Figure 6 reducing the audibility of the interference i ArraySHOW HP64 two 32 in amp 60 deg apart arr Ej File Edit Array Window Help 2zlm x Array Frequency Device Z Azimuth levatio Delay Atten Polarity 4 ESRB Figure 8 E E T 100 feet to microphone Horizontal polar response blue cen ter plot of two 60 x 40 loudspeakers aimed 60 apart but with double the Ang CE distance between grille centers compared Finite to Figures 6 and 7 showing the more densely packed 1 250 Hz off axis nulls caused by multiple source interference see text for more details 1250 Hz X 10 dB steps 1250 Hz 16 Electro Voice EVF EVH User Manual 3 0 Designing an EVF EVH Cluster cont 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 Such a cluster is shown in Figure 9 assembled with the optional HRK rigging kits
40. ent position is obtained a maximum of one complete turn 4 All hardware supplied by the user must be rated for overhead lifting to suspend the loudspeaker system 5 Never install the eyebolt without the factory supplied washer Eyebolts must be fully seated and oriented in the plane of pull see section 5 211 Eyebolt Application Warnings Figure 17 Always use the factory supplied fender washer to distribute the load on the enclo sure Over tightening the eyebolt with a wrench screwdriver etc can result in a system failure and pos sible injury Figure 18a Removal of the flat head bolts from the enclosure Figure 18b Installation of eyebolts and washers to the enclosure Dow N 4 28 Electro Voice EVF EVH User Manual 5 0 EVF and EVH Rigging System cont 5 213 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 horizontal or vertical cluster using M10 eyebolts Secure cabinets to the building structure with user supplied hardware All user supplied hardware shackles wire rope bolt con nectors etc must be rated for overhead lifting Refer to section 1 for suspension point locations A second enclosure may be suspended from the first by using the same M10 rigging points on the second enclosure Connection between the two enclosures through the M10 eyebolts requires hardware sup plied by the end user All user supplie
41. erdrive at frequencies below their operating range Failure to do so could damage the low frequency drivers if fed high level signals below the system s operating range Table 3 shows the recommend high pass filter frequencies for infrasonic protection of EVF and EVH systems Different high pass filter frequencies are recommended for some fiberglass versions based on changes in operation range due to the effects of having a sealed enclosure Model s Recommended High Pass Frequency minimum EVF 1122 XX PH O EVF 1152 XX 45 Hz 55 Hz for Fiberglass Versions EVF 1121S 50 Hz 55 Hz for Fiberglass Versions EVF 1151S 35 Hz 45 Hz for Fiberglass Versions EVF MB8iS 1 33H y O WEARS 1 HC yO EVE215DD 1 35H O EVH M52 XX J 1 1 1 60H y Table 3 Recommended high pass frequencies for infrasonic protection of EVF and EVH systems Electro Voice EVF EVH User Manual 21 EVF EVH 4 0 Preparing EVF and EVH Systems for Installation cont 4 52 Using the EVF 1121S and EVF 1151S Low Frequency Systems in Full Range Clusters that Operate on a Single Power Amplifier Channel The EVF 1121S and EVF 1151S low frequency systems have integral passive low pass filters that roll off frequencies above 100 Hz at the rate of 12 dB per octave This means that these systems can be used to augment the low frequency output of the EVF 1122 XX and EVF 1152 XX full range systems without the use of an external digital signal pro
42. formation can be found at www electrovoice com By providing a single loudspeaker system with uniform frequency response the loudspeaker presets are a good starting point for equalizing a cluster of systems during setup and commissioning Final equalization of a cluster should be accomplished with additional equalization made in front of the DSP device not by modifying the preset crossover and equalization parameters in the low and high frequency outputs of the DSP The later is likely to produce undesirable frequency response and directivity changes in the cross over region 22 Electro Voice EVF EVH User Manual 5 0 EVF and EVH Rigging System 5 1 Introduction 5 11 The Flying EV Innovation EV I Loudspeaker System All EVH and EVF loudspeaker systems incorporate heavy duty M10 1 5 threaded attachment points on each enclosure These attachment points work in conjunction with 1 the M10 eyebolts included with each loudspeaker or 2 the optional VRK and HRK rigging kits The rigging kits allow the user to rig multi ple systems together in horizontal and vertical configurations The horizontal and vertical rigging kits are an open ended design meaning that any system in the EVF and EVH families can rig to any other The verti cal and horizontal rigging plates give the user ultimate flexibility for splay angles from 0 to 45 degrees in 5 increments 0 to 20 for EVF to EVF subwoofer This system was designed to allow the end user to co
43. h each loudspeaker and are downloadable from the Electro Voice Web site www electrovoice com S System Weight 60 0 Ib 27 2 kg e CENTER D System Weight 65 5 Ib 29 7 kg os M10 THREADED SUSPENSION __ POINTS 5 PER END 7 647 75 194 23mm End View E 30 258 768 55mm 361 95mm M10 THREADED SUSPENSION POINTS d 4 PER SIDE M10 THREADED SUSPENSION POINTS 2 ON REAR 14 250 15 996 406 29mm Front View 16 273 Figure 1a 413 33mm Side View Rear View Key dimensions suspension points weight and center of gravity for EVF 1122 all coverage patterns en i i z M10 THREADED S System Weight Q SUSPENSION 70 1 Ib 31 8 kg Bice POINTS D System Weight OF GRAVITY aaa 75 7 Ib 34 4 k9 ie THREADED SUSPENSION e POINTS 2 ON REAR 30 258 Y 768 55mm e e 14 531 369 09mm 9 930 252 22mm h e M10 THREADED SUSPENSION E Ah E POINTS 9 000 18 498 18 369 Ee KE 5 PER END 469 84mm 466 57 mm 7 End View Front View Side View Figure 1b Rear View Key dimensions suspension points weight and center of gravity for EVF 1152 all coverage patterns Electro Voice EVF
44. hat hold the HF waveguide assembly Use a 4 mm Allen hex wrench to remove the four screws holding the hard foam mid frequency waveguide contours in place on the left and right sides of the enclosure Figure 12 shows a contour in the process of being removed Rotate and reinstall the contours in the top and bottom of the enclosure Reinstall the two rails that hold the HF waveguide assembly Rotate and reinstall the compression driver HF waveguide assembly Reinstall the grille Electro Voice EVF EVH User Manual 4 0 Preparing EVF and EVH Systems for Installation cont Figure 12 An EVH hard foam waveguide contour being removed for reorientation 4 5 Digital Signal Processing 4 51 Full Range Systems in Passive Mode For full range systems in the passive mode the internal crossover equalizer network sends low frequen cies to the woofer and high frequencies to the compression driver waveguide combination In addition the network tailors the frequency response and levels of each individual driver so that the overall frequen cy response of the loudspeaker is essentially flat over its design operating range Once a cluster of EVF and or EVH systems is installed in a venue a digital signal processor DSP will typically be used to adjust the in room frequency response based on the specifics of the situation In addition the DSP should be used to provide the high pass filters recommended to protect EVF and EVH systems against ov
45. l EA 2 eman E Long in front Toward input panel 25 Kak NT oF Long in front Toward input panel 20 rand Seale 36 Electro Voice EVF EVH User Manual 6 0 Rigging Strength Ratings and Safety Factors 6 1 Working 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 Manufacturers typically present the structural strength ratings of mechanical components or systems as either the Working Load Limit WLL or the ultimate break strength Electro Voice chooses to present the structural load ratings of the EVF and EVH loudspeaker systems as the WLL The WLL rating represents the maximum load that should ever be applied to a mechanical component or system THE USER SHOULD NEVER APPLY A LOAD THAT EXCEEDS THE WLL OF ANY OF THE N RIGGING COMPONENTS OR COMPLETE LOUDSPEAKER SYSTEMS DESCRIBED IN THIS MANUAL The WLL for the EVF and EVH rigging components and complete loudspeaker systems described in this manual are based on a minimum 8 1 safety factor The safety factor is defined as the ratio of the ultimate break strength divided by the WLL where the ultimate break strength represents the force at which a part will structurally fail For example if a part has a WLL of 1 000 Ib 454 kg it would not structurally fail until a force of at least 8 000 Ib 3 629 kg was applied ba
46. ll back can be achieved through the use of attachment to the tie plates Stabilization can be achieved through the use of M10 eyebolts at the back of the enclosures The hardware used to achieve the pull back is supplied by the end user A basic two over two cluster is shown in Figure 22 TERS I E THOSE WHOSE LEFT TO RIGHT CENTER OF GRAVITY IS IN THE CENTER OF NOTE THAT THE HRK KITS ARE DESIGNED TO MAKE WEIGHT SYMMETRICAL CLUS N THE CLUSTER The following components are needed to achieve this cluster 1 Two HRK 1 horizontal rigging kits for EVF to EVF 2 User supplied hardware to link the upper cluster to the lower cluster 32 Electro Voice EVF EVH User Manual 5 0 EVF and EVH Rigging System cont HRK 1 Kit x2 Sold Separately Tie Plates Tie Plates As Shipped Attached to the Rigging Plates Within the HRK Kits Within the lt HRK Kits EVF Ful Optional Stabilization Systems x4 Points Figure 22a Figure 22b Figure 22c A four enclosure horizontal hang A four enclosure horizontal hang A four enclosure horizontal hang of two EVF full range systems of two EVF full range systems of two EVF full range systems above and two EVF full range above and two EVF full range above and two EVF full range systems below connected by two systems below connected by two systems below connected by two HRK 1 kits optional accessories HRK 1 kits optional accessories HRK 1 kits optio
47. nal accessories and user supplied hardware to and user supplied hardware to and user supplied hardware to link both clusters using a link both clusters using a link both clusters using an moderate trim angle more extreme trim angle extreme trim angle A basic three over three cluster is shown in Figure 23 NOTE THAT THE HRK KITS ARE DESIGNED TO MAKE WEIGHT SYMMETRICAL CLUS TERS I E THOSE WHOSE LEFT TO RIGHT CENTER OF GRAVITY IS IN THE CENTER OF THE CLUSTER N MAIN SUSPENSION LINES AND PULL BACKS MUST BE TIED TO THE TIE PLATES The following components are needed to achieve this cluster 1 Four HRK 2 horizontal rigging kits for EVF to EVF subwoofer EVH 2 User supplied hardware to link the upper cluster to the lower cluster Electro Voice EVF EVH User Manual 33 EVF EVH 5 0 EVF and EVH Rigging System cont Figure 23b A six enclosure horizontal hang of three systems above and three systems below connected by four HRK 2 kits optional accessories and user supplied hardware to link both clusters using a more extreme trim angle Figure 23a A six enclosure horizontal hang of three systems above and three systems below connected by four HRK 2 kits optional accessories and user supplied hardware to link both clusters using a moderate trim angle Figure 23c A six enclosure horizontal hang of three systems above and three systems below connected by four HRK 2 kits optional accessories a
48. nd minimum number of suspension lines for all eybolt clusters Minimum of Two we Suspension Lines T Minimum No of Suspension Lines Minimum of Two Suspension Lines q din E Maximum of Two 8 Enclosures Maximum of Two Enclosures A A di Max Cluster Weight Max Cluster Weight 286 Ib 130 kg 286 Ib 130 kg Figure 24a Figure 25b Limitations for vertical all eyebolt clusters Limitations for horizontal all eyebolt clusters Electro Voice EVF EVH User Manual 39 EVF EVH 6 0 Rigging Strength Ratings and Safety Factors cont 6 31 Working Load Limits for Eyebolts Eyebolts can be used to suspend individual loudspeakers and certain types of clusters Eyebolts attach to the EVF and EVH enclosures through the integral M10 1 5 attachment points Section 5 21 Anatomy of an EVF or EVH Flying System Using M10 Eyebolts should be reviewed at this time for more information on eyebolt alignment and positioning on the enclosure Table 9 shows the WLL per eyebolt with respect to the angle of the applied load Figure 25 shows the suspension point angles that are referenced in the table It is a good idea to stay within 30 of the maximum WLL of the eyebolt straight up position for main suspension lines 40
49. nd user supplied hardware to link both clusters using an extreme trim angle 34 Electro Voice EVF EVH User Manual 5 0 EVF and EVH Rigging System cont 5 24 Assembly Instructions for VRK and HRK kits Both the VRK and HRK rigging kits share the same mounting hole positions and letter designations Tables 5 6 and 7 apply to both the VRK and HRK kits The only difference between the kits is the HRK rigging plates have an integral tie plate and the VRK kits use a stabilizing bar 1 Refer to Tables 5 6 or 7 to determine which lettered hole position to use Follow the direc tions in these tables for arrow direction and positioning on the cabinet Note that Front will always refer to the front of the enclosure i e the grille HRK kits skip to step 3 For VRK kits preassemble them using the supplied hardware by attaching the stabilizer bar to both the large and small rigging plates Attach the stabilizer bars to the back side of the plates using a 2 Phillips screwdriver the eight M5 pan head machine screws and M5 split lock washers supplied with the hardware kit You are now ready to attach the VRK kits to the loudspeakers Referring to Tables 5 6 or 7 depending on which systems are being connected find which rigging plate letter will give you the desired angle Also pay attention to the arrow direction as listed in the table With a 6 mm Allen hex wrench remove the M10 flathead bolts that were installed by the factory Remov
50. nd vertical VRK rigging kits that accommodate a number of horizontal and vertical system aiming angles See section 5 0 EVF and EVH Rigging System for details TK 150 optional 70 7 100 volt transformer kit mounts on the inside of the EVF and EVH input panels offering 37 5 75 and 150 watts at 70 7 volts and 75 and 150 watts at 100 volts Installation instructions come with the TK 150 EVF UB optional U bracket kit for mounting single EVF full range and low frequency not subwoofer systems to a wall or ceiling Installation instructions come with the EVF UB EVI M10K optional eyebolt kit consisting of four M10 shoulder eyebolts and four fender washers used when additional eyebolts are needed to suspend loudspeakers See section 6 3 for details One EVI M10K eyebolt kit is supplied with each loudspeaker system EVI AC optional access card which allows diagnostic access to the transducers and protection circuitry inside the enclosure Use of this accessory does not require any disassembly or disconnections beyond removal of the plug in switch card 2 0 Tool 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 2 Phillips 2 screwdriver for grille removal to rotate waveguides removal of high frequency waveguides for rotation and removal of input panel to install the optional TK 150 70 7 100 volt transformer
51. ne 4 592 116 64mml 6 Long in front Toward input panel 30 pol il H Long in front Toward input panel 35 pal edi KH Long in front Toward input panel 40 Lid ei Be Long in front Toward input panel 45 seh Poiana Letter Rigging Plate Arrow Direction Anale Hole to Hole Dim Position both rigging plates 9 Short Bar Long Bar 7 5 913 150 19mm Table 6 A Shortinfront Toward grile o seaseranassmm ruo EVP arde Te sonne meets o arias and low frequency systems to MM EVF subwoofers and EVH using C Short in front Toward grille zaa a a WK 2 or HRK2 raging kis o Shonintons Taste wr car eh CE storinton Tenane ee in Letter Rigging Plate Arrow Direction Angle Hole to Hole Dim Position both rigging plates 9 Short Bar Long Ban PA metre eee WA euet 5 554 141 07 mm B Shortin front Toward grile o iuris 5 234 10744mm C Shotinfont Toward grile 5 ia ieasmm 4 908 124 66mm D Shortin tront Toward gril Table E Sotto emen or S ee 6 308 160 22 For clustering EVF subwoofers dus 107A and EVH systems using VRK 3 F Short in front Toward grile LEAN ON or HRK 3 rigging kits A Long in front Toward input panel 45 Ppl me pe B Long in front Toward input panel 40 bevel ad aati Long in front Toward input panel 35 baga Pee ABs Long in front Toward input pane
52. ngs and Safety Factors cont 6 2 Structural Rating Overview Designing a safe structural cluster is usually a very complex process best left to experienced profession als Since the EVH and EVF rigging options allow the user to configure a wide variety of clusters the following guidelines have been broken into three sections eyebolts vertical rigging and horizontal rigging Each section will give the end user guidelines for maximum weight and height of clusters At the end of each section typical clusters will be recommended The following is a short synopsis of the consider ations involved There are three independent strength ratings that together with listed maximums give a complete de scription of the overall structural capabilities of the loudspeaker cluster 1 The strength of each M10 1 5 threaded attachment point in each of the individual enclo sures This is the strength of the M10 corner bracket and the enclosure 2 The strength of the rigging plates included in the VRK and HRK rigging kits described in section 5 0 EVF and EVH Rigging System 3 The strength of the M10 1 5 eyebolts Using the three strength ratings listed above maximum cluster heights and weights will be recommended so that the cluster maintains an 8 1 safety factor In any cluster the forces acting on each loudspeaker on each individual rigging point and on the enclo sure and the forces acting on each point of the rigging accessory M10 1 5 eyebolts
53. nstruct a loudspeaker cluster to fit nearly any application Figure 13 and Table 4 show the possible connections using the three VRK and HRK rigging kits to connect any EVF or EVH loudspeaker e EVF Full Range or Low Frequency ae SS ae 3 EVF Full Range or Low Frequency CMS 9 n Ej gt L HRK 1 or VRK 1 HRK 1 shown at 0 Figure 13a VRK 1 or HRK 1 connection e t EJ to EVF Full Range or Low Frequency e d EVH Full Range or EVF Subwoofer 40 t e SP 9 oo E uc HR K 2 or VRK 2 H RK 2 shownat0 Figure 13b VRK 2 or HRK 2 connection M e ela EVH Full Range EVH Full Range or EVF Subwoofer or EVF Subwoofer E ae e 5 99 d 4 s HRK 3 or VRK 3 HRK 3 shown at 0 Figure 13c VRK 3 or HRK 3 connection Electro Voice EVF EVH User Manual Model Orientation Color Function VRK 1B Vertical Black EVF full range and VRK 1W Cluster White low frequency systems Horizontal Black EVF full range and Cluster White low frequency systems Table 4a VRK 1 or HRK 1 connection HRK 1B HRK 1W Model Orientation Color Function VRK 2B VRK 2W Vertical Cluster EVF full range or Black low frequency systems White to EVF subwoofer or EVH full range EVF full range or Black low frequency systems Whit
54. nt federal state and local regulations All specific material concerning the strength ratings rigging techniques and safety considerations for the EVF and EVH loud speaker 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 specifi cations 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 Electro Voice EVF EVH User Manual 3 1 0 Introduction The Electro Voice 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 The S versions employ 400 watt SMX low frequency transducers and the ND2B medium format 1 4 inch exit 2 inch diaphragm compression driver The D versions em ploy 500 watt DVX A low frequency transducers and the DH7
55. o Figure 4 The two loudspeaker sources sum perfectly only on the axis of the cluster as shown to the left and right of this axis distance differences produce arrival time differences that cause cancellation of some frequencies see text for more details 14 Electro Voice EVF EVH User Manual This effect is shown in the frequency response of Figure 5 Given the dimensions of the typical compact loudspeaker systems and when they are clustered in close proximity to one another the first several in terference nulls occur right in the middle of the vocal range A frequency response with these ever more closely spaced nulls is known as a comb filter response after the visual appearance of the response 3 0 Designing an EVF EVH Cluster cont NORMALIZED OUTPUT IN dB 00 200 500 K 2K 5K 10K 20K FREQUENCY IN HERTZ Figure 5 Typical response off the array axis of the two loudspeakers shown in Figure 4 showing cancellations due to arrival time differences If one of the null frequencies is chosen and the horizontal polar response is measured the result is shaped like the blue polar response in the center lower graph of Figure 6 In this view the cluster axis points up X Full output is achieved on this axis since both signals arrive at the same time But there are off axis problems While the overall coverage of the cluster i
56. play and recording The load cells are calibrated annually by an independent laboratory to a standard traceable to the United States National Bureau of Standards This pull test facility is capable of pulling to destruction both individual rigging components and complete loudspeaker sys tems Electro Voice utilizes state of the art computer modeling programs for structural analysis throughout the development of loudspeaker systems The computer modeling enables the complex forces in the rigging components and enclosures to be analyzed for loudspeakers assembled into arrays and clusters in both static and dynamic conditions Structural testing and computer modeling were used throughout the engineering development of all EVF and EVH individual rigging components and complete loudspeaker systems described in this manual Testing and modeling involving both anticipated use and anticipated misuse were performed as part of the analysis Engineering prototypes were stressed to failure and designs were revised based on those test results Production systems and components were stressed to failure for verification of the final designs Electro Voice EVF EVH User Manual 51 70 Rigging Inspections and Precautions Electro Voice EVF and EVH Loudspeaker Systems Prior to each use inspect the enclosures for any cracks deformations or missing or damaged components that could reduce enclosure strength Inspect the rigging plates tie plates and stabilizer bars bet
57. r angles mentioned previously are defined where loudspeaker output is 6 dB down from maximum usually on axis level In order to help cover only the absorptive audience with sound given different trim heights and the wide variety of venue shapes the EVF and EVH series are offered in the many coverage patterns listed in Table 1 above Even with this wide choice it is relatively unlikely that a single loudspeaker will cover the audience uniformly Therefore two or more loudspeakers are often as sembled into clusters and aimed in different directions in order to reach the entire audience 3 31 Basic Clustering Guidelines The aiming angles of systems in a cluster are related not only to room geometry but also to the particular coverage patterns selected A rough design can be based on the plan and elevation views of a room rep resenting the loudspeakers by the angles of their horizontal and vertical coverage patterns e g 60 x 40 A wide or short throw coverage pattern such as 120 x 60 is good for aiming down into the front rows of a rectangular venue to reach all of the seats left to right Narrower patterns such as 60 x 40 and 40 x 30 are appropriate as long throw devices that send sound to the rear of the audience without also blasting out the front rows Sophisticated software is also available which allows the designer to build a room model and place and aim loudspeakers within it assessing the uniformity of coverage
58. rigging plates and tie plates will vary with each cluster configuration Determining those forces throughout a cluster requires complex mathematical calculations Electro Voice engineers have therefore defined a set of simplified structural rating guidelines for both vertical and horizontal clusters that eliminates the need for complex calculations The interaction of complex forces throughout EVF and EVH clusters was analyzed using a combination of destructive testing and computer modeling to develop this set of conservative guidelines presented below to enable a rigger to immediately determine on site whether or not a cluster is safe with out having to make weight distribution calculations 38 Electro Voice EVF EVH User Manual 6 0 Rigging Strength Ratings and Safety Factors cont 6 3 All Eyebolt Structural Ratings The guidelines for simplified all eyebolt structural ratings cover the following information Maximum number of enclosures Maximum weight of the cluster WLL for eyebolts Suspension line angles Left to right all eyebolt cluster angles oe eh gt THE MAXIMUM LOAD MAXIMUM NUMBER OF ENCLOSURES AND MINIMUM NUMBER OF SUSPENSION LINES FOR ALL EYEBOLT CLUSTERS ARE LISTED IN TABLE 8 LIMITS FOR ALL EYEBOLT CLUSTERS ONLY Maximum Working Maximum Number of Load Limit Enclosures 291 Ib 132 kg Two either vertical or horizontal Two for any all eyebolt cluster Table 8 Maximum load maxiumum number of enclosures a
59. roken welds corrosion or missing or damaged components that could reduce the structural strength Damaged structural supports should be replaced or repaired and recertified by a professional engineer Never exceed the limitations or maximum recommended load for the supports Miscellaneous Mechanical Components Prior to each use inspect all mechanical components chain wire ropes slings shackles hooks fittings ratchet straps etc for any cracks deformation broken welds slipping crimps fraying abrasion knots corrosion chemical damage loose screws or missing or damaged components that could reduce the maximum strength specified by the component manufacturer Replace any damaged mechanical components immediately Never exceed the limitations or maximum recommended load for the mechanical components 52 Electro Voice EVF EVH User Manual 8 0 References 8 1 Rigging printed 1 W E Rossnagel L R Higgins amp J A MacDonald Handbook of Rigging for Construction and Industrial Operations McGraw Hill Book Company New York NY USA 1988 2 H Donovan Entertainment Rigging http www riggingbooksandprograms com Rigging Seminars Seattle WA USA 2002 3 J O Glerum Stage Rigging Handbook Southern Illinois University Press Carbondale IL USA 1987 4 P Carter Backstage Handbook Broadway Press New York NY USA 1988 5 ATM Fly Ware Riggermeister Production Rigging Guide ATM Fly Ware Carson CA US
60. rtical hang shown in Figure 19 but with the cabinets rotated and other surfaces used for mounting eyebolts Figure 20b A two system horizontal cluster using the eyebolt kit supplied with each system plus user supplied hardware not shown using a more extreme trim angle Figure 20a A two system horizontal cluster using the eyebolt kit supplied with each system plus user supplied hardware not shown using a moderate trim angle Figure 20c A two system horizontal cluster using the eyebolt kit supplied with each system plus user supplied hardware not shown using an extreme trim angle 30 Electro Voice EVF EVH User Manual 5 0 EVF and EVH Rigging System cont 5 22 VRK Kits and Vertically Rigged Clusters A basic three enclosure vertical hang is shown in Figure 21 The following components are necessary to construct this cluster 1 One VRK 1 vertical rigging kit for EVF to EVF 2 One VRK 2 vertical rigging kit for EVF to EVF subwoofer 3 Four M10 eyebolts from the supplied EVI M10K eyebolt kit to suspend the top cabinet VRK 2 Kit Sold Separately VRK 1 Kit Sold Separately EVF Full Range E System Figure 21a Basic three enclosure vertical hang of an EVF subwoofer on top and two EVF full range systems below using one each VRK 1 and VRK 2 kits optional acces sories and four eyebolts supplied with systems using a moderate trim angle Figure 21c Basic three enclosure vertic
61. s about 120 6 dB down two deep nulls occur at about 20 on either side of the cluster axis i ArraySHOW EV64 two 16 in amp 60 deg apart arr DER Ej File Edit Array Window Help z m x Array Frequency Device Z Azimuth levatio Delay Atten Polarity Ea 100 feet to microphone Figure 6 Horizontal polar response blue center plot of two closely clustered 60 x 40 Ang FE loudspeakers aimed 60 apart showing Horizontal the off axis nulls at 1 250 Hz caused by multiple source interference see text for more details 1250 Hz 3 10 dB steps 1250 Hz Electro Voice EVF EVH User Manual EVFEVH 3 0 Designing an EVF EVH Cluster cont At higher frequencies the interference patterns become more densely packed which essentially elimi nates their audibility Figure 7 shows this effect at 8 000 Hz i ArraySHOW EV64 two 16 in amp 60 deg apart arr DER Ej File Edit Array Window Help Array Frequency Device imuth levati lt Polar a 100 feet to microphone Figure 7 Horizontal polar response blue center plot of two closely clustered 60 x 40 PER loudspeakers aimed 60 apart showing Horizontal AK multiple densely packed off axis nulls at 8 000 Hz caused by multiple source interference see text for more details 8000 Hz X 10 dB steps 8000 Hz 3 51 Reducing Multiple Source Interference Multiple source interference cannot be
62. sed on an 8 1 safety factor However the user should never apply a load to that part that exceeds 1 000 Ib 454 kg The safety factor provides a margin of safety above the WLL to accommodate normal dynamic loading and normal wear CAUTIONS for Working Load Limits and Safety Factors The WLL defined by the manufacturer of any rigging component should never be exceeded Electro Voice bases the WLL of its EVF and EVH products on a minimum of an 8 1 safety factor Other manufacturers of rigging components may base their WLL on safety factors other than 8 1 For example 5 1 safety fac tors are fairly common among rigging manufacturers because many regulatory agencies call for a minimum safety factor of 5 1 When an EVF and EVH loudspeaker system is installed where local regulations only require a safety factor of 5 1 Electro Voice insists that the WLL of the EVF and EVH rigging never be exceeded and that an 8 1 safety factor be maintained for the EVF and EVH loudspeakers The user is cautioned that some local regulations may require safety factors higher than 8 1 In that cir cumstance Electro Voice insists that the user maintain the higher safety factor as required by the local regulations throughout the entire EVF and EVH installation It is the responsibility of the user to make sure that any EVF and EVH installation meets all applicable local state or federal safety regulations Electro Voice EVF EVH User Manual 37 6 0 Rigging Strength Rati
63. signed for full weather exposure and feature a fiberglass fin ished enclosure stainless steel hydrophobic grille and the CDG dual gland nut input panel cover The PI versions e g EVF 11525 64 PIW are rated for indirect outdoor exposure only in protected areas such as under a roof overhang and feature a stainless steel hydrophobic grille and CDG dual gland nut input panel cover on an enclosure finished in standard EVCoat External fasteners on all systems are stainless steel All EVF and EVH systems are available in black or white Black is indicated by BLK or B at the very end of the complete model number and white is indicated by WHT or W at the very end of the complete model number e g EVF 1152 94 BLK and EVF 1152S 94 PIW 1 2 EVF Front Loaded Series Note that engineering data sheets with complete specifications are packed with each system and down loadable at www electrovoice com EVF 1122S 64 EVF 1122S 66 EVF 1122S 94 EVF 1122S 96 EVF 1122S 99 EVF 1122S 126 EVF 1122D 64 EVF 1122D 66 EVF 1122D 94 EVF 1122D 96 EVF 1122D 99 EVF 1122D 126 two way 12 inch full range systems with six different rotatable waveguides ranging from 60 x 40 to 120 by 60 as detailed in Table 1 EVF 1152S 43 EVF 1152S 64 EVF 1152S 66 EVF 1152S 94 EVF 1152S 96 EVF 1152S 99 EVF 1152D 43 EVF 1152D 64 EVF 1152D 66 EVF 1152D 94 EVF 1152D 96 EVF 1152D 99 two way 15 inch full range systems with six different rotatable waveguides ranging
64. t Using tie plates for suspension Suspension line angles for HRK rigging Symmetry of cluster Inner connection points Left to right horizontal cluster angles ONO UD Oh gt Using the HRK horizontal rigging kits any combination of EVF and EVH enclosures can be assembled in a cluster as long as the WLL angles and height limits are observed For horizontal clusters left to right symmetry must also be observed to keep even loads across suspension lines N SUSPEND HORIZONTAL CLUSTERS USING TIE PLATES ONLY NO EYEBOLTS LIMITS FOR HORIZONTAL CLUSTERS ONLY Maximum Working Load Limit Maximum Height Three over Three 980 Ib 445 kg Max Two Enclosures High Two over Two 634 Ib 288 kg or 5 25 ft 160 1 cm Table 13 Maximum load and maximum height for horizontal clusters Table 14 gives a brief guide to the cluster combinations possible within the WLL of the EVF and EVH enclosures LIMITS FOR HORIZONTAL CLUSTERS ONLY Maximum Number Minimum No of Tie Plate Angle Clustered Enclosures E of Enclosures Suspension Lines Restrictions Three enclosures over 4 See Figure 32 three enclosures 2 per side 9 Two enclosures over See Figure 32 two enclosures 4 Three enclosures across See Figure 32 2 per side Table 14 Possible horizontal cluster combinations within the WLL of each enclosure 46 Electro Voice EVF EVH User Manual 6 0 Rigging Strength Ratings and Safety Factors cont 6 51 Using Tie Pla
65. tes as Main Load Bearing Suspension Horizontal clusters are attached to the structure with the tie plates located on the rigging plates of the HRK kits The tie plates have six holes that will accept a 5 8 inch shackle or similar connector All main suspension lines that carry the cluster s load should be tied to these tie plates Both the front and rear tie plates on the top boxes must be connected to the building structure when the cluster is installed using a moderate trim angle as shown in Figure 31 For purposes of stabilization especially with the two over two cluster additional stabilization points can be helpful These stabilization points can be used as eyebolts on the enclosures at the rear of the cluster Figure 31 shows typical stabilization points Main Max Cluster Weight Load Bearing 634 Ib 288 kg Suspension Lines Points Optional Stabilization Lines Points MAX HEIGHT 5 25 ft 160 1 cm OR TWO ROWS TALL Optional Pull Back Figure 31a Use of tie plates in the suspension of a two over two cluster using HRK rigging kits Electro Voice EVF EVH User Manual Main Load Bearing Suspension Lines Points Max Cluster Weight 980 Ib 445 kg MAX HEIGHT 5 25 ft 160 1 cm OR TWO ROWS TALL Figure 31b Use of tie plates in the suspension of a three over three cluster using HRK rigging kits 47 EVF EVH 6 0 Rigging
66. the most flexibility since not only can box aiming angles be determined but also the boxes can be rotated about their aiming axes which can improve coverage uniformity in certain venue shapes EASE 4 2 allows this option 26 Electro Voice EVF EVH User Manual 5 0 EVF and EVH Rigging System cont 5 21 Anatomy of an EVF or EVH Flying System Using M10 Eyebolts 5 211 Eyebolt Application Warnings NO EYEBOLT SHOULD BE MOUNTED IN THE SIDES OF ANY EVF OR EVH ENCLOSURE IN ORDER TO SUSPEND A SYSTEM OR CLUSTER FROM THE TOP ce Figure 16 Eyebolts installed incorrectly in the sides of an enclosure in order to suspend it from above SHOWN IN FIGURE 17 ALWAYS USE WASHERS TO DISTRIBUTE SUSPENSION LOADS REFER TO SECTION 6 3 FOR SPECIFIC EYEBOLT WEIGHT AND ANGLE RESTRICTIONS Figure 17 Illustration showing the use of washers with fully seated eyebolts with correct orientation in the plane of pull Electro Voice EVF EVH User Manual 27 EYEBOLTS MUST BE FULLY SEATED AND ORIENTED IN THE PLANE OF PULL AS CORRECT INCORRECT 5 0 EVF and EVH Rigging System cont 5 212 Eyebolt Installation Installation instructions follow jm Remove the M10 flat head bolts from the enclosure see Figure 18a 2 Screw the lifting eyebolt with fender washer into the threaded attachment point until the fender washer has contacted the enclosure see Figure 18b 3 Continue to finger tighten the eyebolt until the correct alignm
67. udspeaker 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 tech niques 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 configura tions 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 require ments 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 curre
68. ween enclosures for cracks corrosion or other defor mations that could reduce their strength and integrity Check to be sure there are no missing screws and that all Mb connector bolts and M10 rigging bolts are securely tightened Hardware that is bent or show ing signs of more than cosmetic surface corrosion should be replaced immediately Lifting Hoists Prior to each use inspect the lifting hoist s and associated hardware including motors if applicable for any cracks deformation broken welds corrosion or missing or damaged components that could reduce the hoist strength Replace any damaged hoists Never exceed the limitations or maximum recommended load specified by the hoist manufacturer Always follow manufacturers recommendations for operation inspection and certification Always raise and lower the load slowly and evenly avoiding any rapid changes in speed or shifting loads that could result in a sudden jolt to the suspended system or the structure from which it is suspended Building Tower or Scaffold Supports Prior to each use the strength and load bearing capabilities of the building tower or scaffold structural supports should be evaluated and certified by a professional engineer as being adequate for supporting the intended rigging system including the loudspeakers grids chain hoists and all associated hardware Prior to each use inspect the building tower or scaffold struc tural supports for any cracks deformation b

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