Installing The Cis120; Mechanical Installation - EAW CIS120 Instruction Manual

5. INSTALLING THE CIS120

The CIS120 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 CIS120 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 CIS120 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.
6
– CIS120

MECHANICAL INSTALLATION

Note: Observe all local and national codes when
installing the CIS120.
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 CIS120 using your own safety-
certified equipment, or purchase the optional cable
mounting kit AC-CK (more details are shown on page 12).
All four eyebolts must be used to suspend the CIS120,
and the weight must be completely supported by the four
suspension wires, and not by the ceiling frame.
If you are suspending the CIS120 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". More details of the trim ring kit
are shown on page 14.
Trim ring