Bose RoomMatch Manuale di installazione - Pagina 15

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Array Rigging

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Application of the RMPULL Bracket

There are three primary applications of the RMPULL bracket for use with RoomMatch™ arrays:

1) For use as "mini frame" to suspend 1 or 2 full-range modules

2) For use with either Small Array Frame or Large Array Frame for pitch angle adjustment

3) For use with Large Array Frame to reduce module moment-force loads

The RMPULL bracket may be used as a "mini frame" to suspend 1 or 2 full-range modules, as suspending the modules directly from

the integrated side-plate rigging hardware is not recommended. When used in this application, the range of suspension angles is limited

using 2-point attachment to the building structure. See Figure 11 below. For greater adjustments in suspension angles, an additional

RMPULL bracket may be attached to the bottom module and used as a third-attachment point to the building structure, to allow angle

adjustment. See Figure 12 below. The RMPULL bracket may NOT be used to suspend subwoofer modules.

Figure 11. RMPULL bracket for 2-module Array

Figure 12. RMPULL brackets top and bottom for 2-module Array

Most commonly, the RMPULL bracket is used as a third-attachment point to the building structure, to allow greater pitch angles, or

more precise resolution of the array. The pitch angle adjustment resolution of the Array Frames using 2-point gravity suspension varies

with module configuration. Additionally, the accuracy of the pitch angle prediction using the "RoomMatch Array Frame Suspension

Angle Calculator" software is plus or minus 2 degrees. Therefore, when precise array pitch angles are required (typically for long throw

distances), the use of the RMPULL bracket with a third attachment point is recommend. Attachment of wire rope (or other materials)

directly to the module integrated side-plates for this purpose is not recommended. When using the RMPULL bracket, the pickup point

on the Array Frame should be positioned as close to the array center of gravity (COG) as possible. This will reduce the load force on the

RMPULL bracket. Additionally, the distance between the RMPULL bracket attachment and array center of gravity (distance "Y" in Figure

13) must be greater than the distance from the frame attachment and center of gravity (distance "X" in Figure 13).

Figure 13. Array Frame, Pullback Bracket, and Array Center of Gravity

Installation and Safety Guidelines

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