Page 1
EVI-12, EVI-15 and EVI-28 Loudspeaker Systems Applications Guide...
Page 3
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-Voice Vari In- ® tense systems to install better-sounding systems and significantly reduce time and material costs.
Page 4
Electro-Voice is known for. The new small-format VI horn maintains consistent directional control down to 2,000 Hz. In the EVI-12 and EVI-15 the VI horn is optimally crossed over to an specially angled woofer. Note: the 12-in. driver in the EVI- 12 is at a different angle than the 15-in.
Page 5
EVI-28 Installation: The EVI-28 makes use of the same high-fre- quency horn as the EVI-12 and EVI-15, but in- cludes a pair of high-power, high-efficiency 8” woof- ers in a very compact package. The system is pro-...
Page 6
10- to 15° relative to the slope of the floor will produce a floorplan the same as an EVI-12 or EVI-15. At the standard aiming, the 45° nearfield operational angle defines an ap- proximate offset to the first useable row of one-half the height of the speaker system above the listening plane.
Page 7
Any interference between the systems will be concentrated in the center aisle, where sound quality is not as critical. The EVI-12, EVI-15 and EVI-28 systems are also ideal for re- placing distributed arrays, providing much more...
Page 8
(see Figure 9). When the EVI-12 and EVI-15 systems are tilted up approximately 15°, their coverage pattern lengthens to match a level EVI-28 at 5 times the height.
Page 9
Figure 2 EVI SYSTEM MOUNTED AT 18’ HEIGHT AND +10° AIMING ANGLE TILTED BACK FROM FLOOR Figure 3 CONVENTIONAL 60X40 SYSTEM MOUNTED AT 18’ HEIGHT AND AIMED ABOUT 30° DOWN CONVENTIONAL 60X40 SYSTEM MOUNTED AT 18’ HEIGHT AND AIMED ABOUT 25° DOWN Direct Field SPL Direct Field SPL Direct Field SPL...
Page 10
Direct Field SPL Figure 4 Vertical Polar S moothed EASE Direct Field Figure 5 Horizontal Polar R aw S moothed AcoustaCADD Direct Field DCSO Direct Field...
Page 11
Figure 6 EVI SYSTEM MOUNTED AT 20’ HEIGHT AND 8° AIMING ANGLE Direct Field SPL...
Page 12
Figure 7 EVI SYSTEM MOUNTED AT 18’ HEIGHT AND ° AIMING ANGLE EVI SYSTEM MOUNTED AT 22’ HEIGHT AND ° AIMING ANGLE Direct Field SPL...
Page 13
Figure 8 EVI SYSTEM MOUNTED BACK-TO-BACK AT 30’ HEIGHT AND +5° AIMING ANGLE Direct Field SPL...
Page 14
Figure 9 EVI SYSTEM MOUNTED AT 25’ HEIGHT AND 15° AIMING ANGLE Direct Field SPL...
Page 15
Figure 10 2 EVI SYSTEM MOUNTED BACK-TO-BACK AT 40’ HEIGHT AND +10° AIMING ANGLE Direct Field SPL...