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3.0 Before You Begin
3.1
Ceiling type
Evaluate the ceiling construction BEFORE beginning installation. Ceiling type,
thickness, and strength determine the installation and connection methods as
well as the necessity of support rails. A qualified person, such as a building trade
professional, architect, or licensed professional engineer, should make these
determinations.
Bracket installation
This guide covers installation methods for both ceiling tile and structural ceilings.
Structural ceilings – Follow the instructions for structural ceilings.
Soft ceiling tiles – If the tiles are made of a "soft" material (like mineral wool or
glass fiber), follow the instructions for ceiling tiles. This will provide extra support.
Rigid ceiling tiles – If the tiles are made of particle board, plywood, gypsum board
or plaster, follow the instructions for ceiling tiles. Or, follow the instructions for
structural ceilings. However, the tiles must be strong enough to support the
loudspeaker without the help of the support rails. See "Support rails" below for
more information.
Support rails
Not all ceilings require the use of the support rails. Only a qualified person, such
as a building trade professional, architect, or licensed professional engineer,
should determine if a ceiling alone is strong enough to support the loudspeakers.
Ceiling tiles – Use the support rails with any ceiling tile made of mineral wool,
fiberglass, or other fibrous material. These tiles do not remain flat, may absorb
moisture, and may not always support the loudspeaker's weight.
3
The support rails are 23
/
" (603 mm) long and will support a loudspeaker in a 2'
4
x 4' or smaller tile. If the ceiling tiles are another size, the support rails will usually
provide adequate support if they meet the edge of the tile on at least two sides.
Follow these guidelines:
For 600 mm tiles, place the mounting pans and support rails at a 10 –15 angle
(Figure 2).
6
AM177915_03_V.pdf • May 6, 2002