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Electro-Voice EVI-12 - page 1
EVI-12, EVI-15 and EVI-28 Loudspeaker Systems Applications Guide ...
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Electro-Voice EVI-12 - page 2
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Electro-Voice EVI-12 - page 3
W elcome to the world of V ari Intense ® horn technology from Electro-V oice. This Applications Guide is not intended as a “very intense” descrip- tion of installation procedures, but more as a partial description of applications and a discussion with the designer to help you understand this revolution- ary technology and use the Electro-V oic ...
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Electro-Voice EVI-12 - page 4
2 Installation procedures for any conventional loudspeaker are fairly well-defined and easy to un- derstand: find an appropriate hanging height and position that affords a clear path to the listening area (such as above the center of a stage or above the lectern in a church), and aim the loudspeaker to- wards the center or just to the rear of cente ...
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Electro-Voice EVI-12 - page 5
the same mounting height of 18 feet, but with the front of the enclosure tilted up by approximately 10° (see Figure 2), the total floorplan now encom- passed the same 36 foot width, but at least 64 feet in length, an additional 10+ feet of extension. Of course, the front row position has moved back about 5 feet with the change in angle as shown, b ...
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Electro-Voice EVI-12 - page 6
4 is mounted above a flat floor is with the top of the enclosure parallel to the floor . In this orientation, the system will provide even SPL over a floorplan that is approximately twice as wide as the mounting height, and five times as long. T ilting the enclosure down by approximately 10- to 15° relative to the slope of the floor will produce a ...
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Electro-Voice EVI-12 - page 7
Please note: the pull-up location on the lower section of the back panel of the enclosure MUST be used to hang the system in order to provide a safe, stable mounting system. The pull-up point pro- vides an additive safety , as it is capable of holding the speaker system with a safety factor of at least 5:1 in the unlikely event of a failure in the ...
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Electro-Voice EVI-12 - page 8
6 NOTE: All figures are direct-field SPL and C50 produced in EASE with interference turned on when applicable. All plots depict the intended listening ar eas only , and do not in clude the “offset distance” to the first ro w . For example, the first set of plots on figure 3 depict the same 54’ x 36’ area as figure 1. See notes on simulation ...
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Electro-Voice EVI-12 - page 9
Figure 3 C50 Direct Field SPL C50 Direct Field SPL Figure 2 C50 Direct Field SPL 7 EVI SYSTEM MOUNTED AT 18’ HEIGHT AND +10 ° AIMING ANGLE TILTED BACK FROM FLOOR CONVENTIONAL 60X40 SYSTEM MOUNTED AT 18’ HEIGHT AND AIMED ABOUT 30 ° DOWN CONVENTIONAL 60X40 SYSTEM MOUNTED AT 18’ HEIGHT AND AIMED ABOUT 25 ° DOWN ...
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Electro-Voice EVI-12 - page 10
8 AcoustaCADD TM Direct Field SPL EASE TM Direct Field SPL DCSO Direct Field SPL V ertical Polar Ra w S mo o thed Figure 4 Figure 5 Horizontal Polar Direct Field SPL Ra w Sm o o t h e d ...
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Electro-Voice EVI-12 - page 11
Figure 6 9 C50 Direct Field SPL EVI SYSTEM MOUNTED AT 20’ HEIGHT AND 8 ° AIMING ANGLE ...
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Electro-Voice EVI-12 - page 12
Figure 7 10 C50 Direct Field SPL EVI SYSTEM MOUNTED AT 18’ HEIGHT AND -10 ° AIMING ANGLE EVI SYSTEM MOUNTED AT 22’ HEIGHT AND -10 ° AIMING ANGLE ...
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Electro-Voice EVI-12 - page 13
Figure 8 11 C50 Direct Field SPL EVI SYSTEM MOUNTED BACK-TO-BACK AT 30’ HEIGHT AND +5 ° AIMING ANGLE ...
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Electro-Voice EVI-12 - page 14
Figure 9 12 C50 Direct Field SPL EVI SYSTEM MOUNTED AT 25’ HEIGHT AND 15 ° AIMING ANGLE ...
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Electro-Voice EVI-12 - page 15
Figure 10 13 C50 Direct Field SPL 2 EVI SYSTEM MOUNTED BACK-TO-BACK AT 40’ HEIGHT AND +10 ° AIMING ANGLE ...
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Electro-Voice EVI-12 - page 16
Part Number 534762—9822 Figure 14 Figure 13 Figure 15 600 Cecil Street, Buchanan, MI 49107 800/234-6831, 616/695-6831, 616/695-1304 Fax ©T elex Communications, Inc. 1998 • Litho in U.S.A. BOLTS AND CABLING/CHAINS MUST BE RATED FOR OVERHEAD LIFTING (NOT SUPPLIED) BOLTS AND CABLING/CHAINS MUST BE RATED FOR OVERHEAD LIFTING (SEE TEXT) 3/8-16 FORG ...
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