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5. INSTALLATION
The loudspeaker is designed to be securely suspended
from the four eyebolts fixed to the metal back can. It can
be suspended into the aperture of a standard suspended
ceiling, or suspended from open plenum spaces.
Placement
There are two considerations when deciding where to
place the loudspeaker:
Location: When installing the loudspeaker in a suspended
ceiling with conventional ceiling tiles, the location of the
loudspeaker is determined in part by the support grid of the
suspended ceiling system.
Coverage: It is important to locate the loudspeaker in such
a way that the sound is evenly distributed over the entire
area. Keep in mind that the sound has farther to travel on
the outside edge of the coverage area for each individual
loudspeaker than directly below the loudspeaker, resulting
in a decrease in SPL at the outer edges of the listening
plane.
The loudspeaker placement should be designed such that
the edges of the coverage pattern for each loudspeaker are
at least touching. The more overlap that is provided (higher
density coverage), the more SPL the system is capable
of providing and the less variation in level as you move
around the area. The downside of higher density coverage,
of course, is that more loudspeakers are required for a
given area.
Note: The EAW website contains free PC software to help
you calculate the coverage for various loudspeakers and
room sizes. Please visit www.EAW.com/downloads and
look under "software" for the "coverage calculator."
6
– CIS961 and CIS991
MECHANICAL INSTALLATION
Note: Observe all local and national codes when
installing the loudspeaker.
Decide if you want to connect the loudspeaker to the
amplifier wiring before it is mounted in place, or if there is
enough access to the rear panel afterwards.
You can suspend the loudspeaker using your own safety-
certified equipment, or purchase the optional cable
mounting kit AC-CK (more details are shown on page 16).
All four eyebolts must be used to suspend the loudspeaker,
and the weight must be completely supported by the four
suspension cables, and not by the ceiling frame.
If you are suspending the loudspeaker into a suspended
ceiling, we recommend using the optional trim ring kit (AC-
TRK) to dress the loudspeaker surrounds into a standard
suspended ceiling aperture 24" x 24" or 600 mm x 600 mm.
More details of the trim ring kit are shown on page 18.
Trim ring
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