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Welcome to the world of Vari Intense
®
horn
technology from Electro-Voice. 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-Voice Vari In-
tense
®
systems to install better-sounding systems
and significantly reduce time and material costs.
In a nutshell, here are the major advantages of
the new EVI systems:
• Rectangular coverage pattern.
Traditional horns deliver an elliptical pattern
to the floor. VI horns deliver a rectangular
pattern, which helps to fill in the corners of
the room. No more costly delay lines or cheap
seats!!
• Even SPL front-to-back.
The unique, patented throat and flare struc-
ture of the VI horn delivers a 6-10 dB hotter
signal to the rear of the room, eliminating ear-
strain at the back of the seating area and pain-
ful ears at the front.
• Greater Intelligibility.
VI horns deliver sound to fill only the
floorplan, providing uniform direct-field SPL
and an order of magnitude less energy into
the reverberant field. This provides an increase
in mid- to high-frequency intelligibility of 6 dB
in most applications.
• One horn replaces two.
With VI technology we’ve eliminated the de-
structive interference which occurs between
long- and short-throw horns. We’ve also elimi-
nated the cost of a properly designed two-horn
system which must include another power am-
plifier channel for good power control and
impedance matching.
• Labor savings in the box.
With structural rigging from the factory, these
systems will fly more conveniently and in less
time than many competitive products. In addi-
tion, less time is spent on the aiming and repo-
sitioning that is required with traditional long-
throw/short-throw horn combinations. This
will save you additional money.
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