EAW SB730 owner manual KF730 Array Design, Fill Coverage

4.KF730 ARRAY DESIGN

4.1KF730 WIZARD

Use the KF730 Wizard for designing KF730 arrays. It can be found in the Downloads/Software section of the EAW website (www.eaw.com). The Wizard’s primary function is to determine the configuration that will provide the best vertical performance for a given application. Various venue dimensions are entered that allow the Wizard to calculate the resultant array performance. Given this information, the Wizard works in either of two basic ways, with both displaying the resulting coverage.

Automatic Mode: The Wizard will select the optimum number of enclosures, enclosure splays, array aiming angle, and fly-bar pick point. This can also be done for a given inventory of KF730s and SB730s. There are variable adjustments for application-specific output levels and for level consistency for near-to-far listeners.

Manual Mode: This provides complete control over the array’s configuration. The number of enclosures, enclosure splays, array aiming angle, and fly-bar pick point can be entered manually.

For complete instructions about operating the KF730 Wizard, click on the About/Help menu when running the Wizard.

4.1.1Computer Requirements

The Wizard requires an IBM compatible PC with the Windows® 98, Windows® 98SE, Windows® 2000, Windows® ME, Windows® XP, or Windows NT® operating systems. It is not designed to work with Windows® 3.x, Windows® 95, or Macintosh® operating systems.

4.1.2Wizard Results

•Graphical representations of the array and the venue

•Aiming splay angle between each pair of enclosures

•How to set the enclosure-to-enclosure rigging

•On-axis aiming angle for each enclosure as a difference from 0° horizontal

•Various angles and throw distances calculated from the venue’s dimensions

•Difference between the array beamwidth angle and the needed coverage angles

•Height of the array and trim height to the bottom of the array from the floor

•Pick Point on the Fly-Bar to achieve the calculated array angle when suspended

•Weight of the array

4.2FILL COVERAGE

4.2.1Up-Fill

Some applications, such as theaters and small arenas, can require up-fill coverage from the array. In this case, the array is designed to tilt back for up-firing coverage from the topmost enclosures.

4.2.2Down-Fill

Many applications require extreme down-fill coverage. In this case, the array is designed to have enough curvature for the bottom KF730 to provide coverage almost directly beneath the array.

4.2.3Horizontal Coverage and Side-Fill Arrays

Regardless of the length of the array, a KF730 array has a horizontal beamwidth (-6 dB points) of approximately 110°, with pattern control maintained to a very low frequency.

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