size of the coverage area is determined by the height at which the loudspeaker is mounted, as
well as the vertical angle at which the system is aimed. This single-box solution reduces
material costs and labor time while increasing performance with higher intelligibility and more
uniform coverage.
In summary, the major advantages of the EVC-1122-VI are:
▪
Rectangular coverage pattern. Traditional waveguides 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.
▪
Even SPL front-to-back. The unique, patented throat and flare structure of the VI
waveguide delivers more consistent sound levels throughout the room, eliminating ear
strain at the back of the seating area and painful ears at the front.
▪
Greater Intelligibility. VI waveguides deliver sound to fill only the floor plan, 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 destructive interference
which occurs between long- and short-throw loudspeakers. We’ve also eliminated the
cost of a properly designed two-box system, which needs to include another power
amplifier channel for proper power control and impedance matching.
▪
Labor savings in the box. Variable Intensity systems will fly more conveniently and in less
time than many competitive products. In addition, less time is spent on aiming and
repositioning. This will save you additional money.
Numbering scheme
The numbering scheme for EVC models is similar to that of other EV-Innovation loudspeakers.
It denotes the number and diameter of the woofers, the number of passbands, the coverage
pattern, and the enclosure color. For example, the EVC-1122-VIB employs a single 12-inch
woofer in a two-way configuration with our unique, compound, Variable Intensity waveguide,
and is finished in black EVCoat. Similarly, the EVC-1181S-W uses a single 18” woofer to cover
a single passband. In other words, it is a subwoofer or low-frequency system in a white
enclosure.
Finishes and colors available
EVC-1122-VI loudspeakers are finished in tough EVCoat. Unlike other EVC models, there are no
weatherized versions of the variable-intensity speaker. Like all EVC systems, the EVC-1122-VI
is available in black or white.
To find current user documentation visit our product related information at
www.electrovoice.com.
en
7
Electro-Voice
Installation manual
2018.01 | 01 | F.01U.345.997
Содержание EVC-1122-VIB
Страница 1: ...EVC Variable Intensity Loudspeaker EVC 1122 VIB EVC 1122 VIW en Installation manual...
Страница 2: ......
Страница 25: ......
Страница 26: ......
Страница 27: ......