Array And Overall System Design; Array Coherency; Subwoofers; System Design Practices - EAW Anya Application Manual

Array and Overall System Design

Adaptive arrays are constructed in two different ways. The vertical coverage is completely variable
regardless of the number of modules in the column, meaning that the number of modules deployed is
determined by the SPL and directivity requirements only. The horizontal coverage is increased by
physically adding columns to the array. Resolution software's "Array Assistant" is designed to assist in
creating a 3-dimensional coverage prediction based on the number of modules physically available.
Simply define the venue as a model in Resolution, launch the Array Assistant, and it will guide you to
the final result. Modifications to the result are certainly possible, and both coverage requirements and
the number of modules used can be redefined or adjusted at any time. Each time a change is made in
Resolution the parameters are automatically recalculated and the results displayed for review. Once it
is confirmed that the model represents your intentions, simply upload the new settings to the Adaptive
arrays and the system will be ready.

Array Coherency

Producing a coherent wavefront from multiple enclosures containing multiple transducers represents
the primary challenge in system design, especially when these enclosures are arrayed in both the
vertical and horizontal planes. Fortunately, Anya and Anna were designed from the beginning to
maximize coherency by allowing each column in an array to be physically configured in only one way.
Modules hang straight without any "J" curvature and combine horizontally with their cabinet faces
completely closed. This removes any opportunity for physically mismanaged arrays and provides a
highly predictable physical design from which to model.

Subwoofers

Although the use of subwoofers is optional, certain music types and environmental conditions may
require additional subwoofer support. If additional subwoofer support is desired, EAW Otto should be
utilized as the ideal match for Anya and Anna. This subwoofer extends Adaptive Performance into the
sub-bass range, providing the optimal low-frequency coverage pattern for the venue.

System Design Practices

Designing with Anya and Anna

The number of modules used in any Adaptive array is predicated on a number of factors. Since the
vertical dispersion of the array is determined by EAW Resolution software and any sized column can be
adjusted anywhere within a 180° vertical beamwidth, the factors to be considered in defining an
Adaptive array design are simplified to the following:
1) Horizontal coverage – The horizontal coverage for Anya is defined by how many columns are
assembled in each array. Columns are arrayed in 60° arc segments (60°, 120°, 180°, 240°, 300°,
360°). Horizontal coverage for Anna is also defined by the number of columns in the array.
Columns are arrayed in 90° arc segments (90°, 180°, 270°, 360°). Additionally, EAW Resolution
applies processing to align multiple columns for the smallest column-to-column seam possible.
2) Overall SPL requirement – As one would expect, the overall available SPL for an Adaptive array
is determined by the number of enclosures in the array. Often, systems are designed around
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