Bose ShowMatch SM20 Gebrauchs- und Anwendungshandbuch - Seite 9
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In rental and touring applications the DeltaQ concept offers the same consistency of coverage and response across the
coverage area, and in smaller, low-ceiling applications this concept can be used to deploy smaller arrays, which deliver
wide vertical coverage, as compared to arrays constructed of traditional line array modules.
A typical rental inventory includes all the fundamental components to build arrays of various sizes and output levels.
These components can be easily mixed and matched, transported, and configured for different applications.
Each array is comprised of three primary components:
Far Throw array sections are comprised of SM5 modules with a 70-degree horizontal coverage angle. The overall
size and throw distance required for the application will determine the quantity of modules configured in this way.
Mid Throw array sections constitute the main portion of the array and are comprised of SM5 modules with a
100-degree horizontal coverage angle.
Downfill Transition is the final section of the array and uses four modules to deliver 40 degrees of vertical coverage
to the nearest audience area. This is accomplished with two SM5 modules, one SM10 module, and one SM20
module, where all modules have a 100-degree horizontal coverage angle.
Far Throw
4x SM5 with 70° horizontal
Mid Throw
4x SM5 with 100° horizontal
Downfill
2x SM5, 1x SM10, 1x SM20, all
with 100° horizontal with 70° horizontal
Typical ShowMatch array for outdoor concert supporting an audience of up to 5,000 people.
In low-ceiling applications, a DeltaQ array can be
deployed to deliver an array with a wide vertical
coverage angle using fewer modules than traditional
systems. In applications where the SPL level can be met
with this approach, a DeltaQ array offers the following
advantages:
Reduced array weight
Improved sight lines
Reduced set-up and installation time
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For a detailed technical explanation of DeltaQ arrays see the AES paper "The influence of the directional radiation performance of the
individual speaker modules, and overall array, on the tonal balance, quality and consistency of sound reinforcement systems,"
presented at the 131st AES Convention in New York City, October, 2011.
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50° vertical coverage
in both arrays
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SYSTEM SOFTWARE
EASE Focus
EASE Focus 3 software allows 3D modeling of audience areas, predictions of acoustic direct-field coverage, sound
levels, and frequency response.
Once an array has been created, inter-box splay angles may be configured manually or using automated splay
calculation. SMS118 cardioid subwoofer presets are available within the software for the creation of cardioid
subwoofer arrays.
At the completion of the design a customizable report can be generated which contains the necessary details for
proper placement, aiming and configuration of array parameters.
The Bose ShowMatch GLL files are licensed to allow use in both Focus and "full" EASE software.
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