Electro-Voice EVA Series User Manual
1.0 Introduction
The Electro-Voice EVA (Expandable Vertical Array) loudspeaker systems or line-array modules represent
an important step in line-array technology for small- and medium-scale fixed-installation sound reinforce-
ment. The various models are designed to significantly simplify the physical assembly of a line array. Also,
arrays of EVA full-range modules are designed to be powered from one amplifier channel, the necessary
crossover and EQ functions accomplished with sophisticated passive networks. The individual loudspeak-
er drivers, Hydra™ plane-wave generators, acoustic waveguides, enclosures and rigging hardware were
all designed specifically for the EVA product line to not only achieve the highest acoustic output with the
highest fidelity but also produce a precise wavefront from each element to achieve state-of-the-art line-
array performance. The EVA subwoofer modules are designed to compliment both the appearance and
performance of the EVA full-range modules in applications where additional low-frequency output is de-
sired from a flown array. A brief description of the product line is included below. The various EVA series
modules are shown in Figure 1 with key dimensions and features.
Although the EVA full-range modules shown in Figure 1 are not physically symmetrical, their acoustic polar
responses are substantially symmetrical. Thus, stereo left and right arrays or left-center-right arrays may
be constructed with the modules in their normal right-side-up orientation as shown in Figure 1. However,
should the user desire, the module attachment points are such that mirror-image left-right arrays can be
made by constructing one array with its modules turned upside down with respect to the views of
Figure 1.
Each EVA full-range module contains two separate, vertically stacked line-array elements splayed within
the module at one-half the included vertical angle of the vertically trapezoidal enclosure. The two ele-
ments of each module consist of two vertically stacked EVS2008 8-inch (203 mm) LF drivers (one per
element) and two pairs of DH2005 1.25-inch-diaphragm (32 mm) HF drivers (one pair per element).
Each HF driver pair is mounted on a Hydra™ plane-wave generator, the two of which are vertically stacked
and splayed with their respective elements. Each module effectively functions as one self-contained zone
within an array, with the added benefit of the internal shading network being able to attenuate either the
upper or lower HF driver pair by 3 dB to help smooth transition between zones when needed.
EVA-2082S/906:
two-way, LF/HF line-array module with a 90° horizontal x 6° vertical coverage pattern
(for long throws) and passive crossover/HF-shading/EQ network. The enclosure is trapezoidal in the verti-
cal plane with a 6° total included angle. The two line-array elements contained in the module are vertically
splayed by 3°.
EVA-2082S/920:
two-way, LF/HF line-array module with a 90° horizontal x 20° vertical coverage pat-
tern (for short throws) and passive crossover/HF-shading/EQ network. The enclosure is trapezoidal in
the vertical plane with a 20° total included angle. The two line-array elements contained in the module are
vertically splayed by 10°.
EVA-2082S/126:
two-way, LF/HF line-array module with a 120° horizontal x 6° vertical coverage pattern
(for long throws) and passive crossover/HF-shading/EQ network. The enclosure is trapezoidal in the verti-
cal plane with a 6° total included angle. The two line-array elements contained in the module are vertically
splayed by 3°.
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