Electro-Voice EVI-12 user manual

User manual for the device Electro-Voice EVI-12

Device: Electro-Voice EVI-12
Category: Speaker
Manufacturer: Electro-Voice
Size: 0.51 MB
Added : 8/18/2014
Number of pages: 16
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Summaries

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Abstracts of contents
Summary of the content on the page No. 1

EVI-12, EVI-15 and EVI-28
Loudspeaker Systems
Applications Guide

Summary of the content on the page No. 2

Summary of the content on the page No. 3

® In a nutshell, here are the major advantages of Welcome to the world of Vari Intense horn the new EVI systems: technology from Electro-Voice. This Applications Guide is not intended as a “very intense” descrip- • Rectangular coverage pattern. tion of installation procedures, but more as a partial description of applications and a discussion with Traditional horns deliver an elliptical pattern to the floor. VI horns deliver a rectangular the designer to help you understand this revolution- pa

Summary of the content on the page No. 4

Installation procedures for any conventional angled woofer. Note: the 12-in. driver in the EVI- loudspeaker are fairly well-defined and easy to un- 12 is at a different angle than the 15-in. driver in the derstand: find an appropriate hanging height and EVI-15, optimizing the floor pattern with the differ- position that affords a clear path to the listening area ing directivities of the two drivers. In the EVI-28, (such as above the center of a stage or above the the VI horn is crossed over to

Summary of the content on the page No. 5

the same mounting height of 18 feet, but with the and horns closer together than possible with me- front of the enclosure tilted up by approximately dium-format horns will produce somewhat better results, but will always result in fairly severe lobing. 10° (see Figure 2), the total floorplan now encom- passed the same 36 foot width, but at least 64 feet Polar measurements in 2° increments show the in length, an additional 10+ feet of extension. Of lobing very well, but the smoothing required fo

Summary of the content on the page No. 6

is mounted above a flat floor is with the top of the Q vs. Intelligibility: enclosure parallel to the floor. In this orientation, The “Q” of a system is a good measure of the the system will provide even SPL over a floorplan system’s directivity, and in some ways a good mea- that is approximately twice as wide as the mounting sure of whether the system’s in-room response will height, and five times as long. Tilting the enclosure be consistent across the frequency range. A typi- o o cal 12-inc

Summary of the content on the page No. 7

is that 3dB of long-throw SPL and 1.5-2dB of side- Please note: the pull-up location on the lower fill level has been lost. A higher resolution data file section of the back panel of the enclosure MUST is needed to provide a “real world realistic” simula- be used to hang the system in order to provide a tion. Figure 5 shows the raw 2° polar data with safe, stable mounting system. The pull-up point pro- the averaged 10° data superimposed. Also shown vides an additive safety, as it is capable of

Summary of the content on the page No. 8

an idea on how the same auditorium floor plan could replace a distributed system along a very long, fairly wide corridor where very high SPLs are not be easily covered in a surround-style arrangement required on a continuous basis (such as an airport with just two EVI systems per side rather than four concourse with 15 to 20 foot ceilings, where a distributed arrays. Although not providing the high- speaker would be placed about every 75 feet). See est intelligibility or smoothest response,

Summary of the content on the page No. 9

Figure 2 EVI SYSTEM MOUNTED AT 18’ HEIGHT AND +10° AIMING ANGLE TILTED BACK FROM FLOOR Direct Field SPL C50 Figure 3 CONVENTIONAL 60X40 SYSTEM MOUNTED AT 18’ HEIGHT AND Direct Field SPL C50 AIMED ABOUT 30° DOWN CONVENTIONAL 60X40 SYSTEM MOUNTED AT 18’ HEIGHT AND C50 Direct Field SPL AIMED ABOUT 25° DOWN 7

Summary of the content on the page No. 10

Direct Field SPL Figure 4 Figure 5 Horizontal Polar Raw Smoothed TM AcoustaCADD Direct Field SPL Vertical Polar Raw S moothed TM EASE Direct Field SPL DCSO Direct Field SPL 8

Summary of the content on the page No. 11

Figure 6 EVI SYSTEM MOUNTED AT 20’ HEIGHT AND 8° AIMING ANGLE Direct Field SPL C50 9

Summary of the content on the page No. 12

Figure 7 EVI SYSTEM MOUNTED AT 18’ HEIGHT AND ° -10 AIMING ANGLE EVI SYSTEM MOUNTED AT 22’ HEIGHT AND ° -10 AIMING ANGLE Direct Field SPL C50 10

Summary of the content on the page No. 13

Figure 8 EVI SYSTEM MOUNTED BACK-TO-BACK AT 30’ HEIGHT AND +5° AIMING ANGLE Direct Field SPL C50 11

Summary of the content on the page No. 14

Figure 9 EVI SYSTEM MOUNTED AT 25’ HEIGHT AND 15° AIMING ANGLE Direct Field SPL C50 12

Summary of the content on the page No. 15

Figure 10 2 EVI SYSTEM MOUNTED BACK-TO-BACK AT 40’ HEIGHT AND +10 ° AIMING ANGLE Direct Field SPL C50 13

Summary of the content on the page No. 16

Figure 11 Figure 12 Figure 14 Figure 13 BOLTS AND CABLING/CHAINS MUST BOLTS AND CABLING/CHAINS MUST BE RATED FOR OVERHEAD LIFTING BE RATED FOR OVERHEAD LIFTING (SEE TEXT) (NOT SUPPLIED) PULL-UP STRAP 3/8-16 FORGED SHOULDER ATTACHED TO 3/8-16 EYEBOLT (SUPPLIED) WITH FORGED SHOULDER PULL-UP STRAP EYEBOLT (SEE TEXT) Figure 15 600 Cecil Street, Buchanan, MI 49107 800/234-6831, 616/695-6831, 616/695-1304 Fax ©Telex Communications, Inc. 1998 • Litho in U.S.A. Par


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