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The EVID™ mounting system has been
designed so that, if necessary, the installation
can be done from beneath the ceiling. In some
cases with a suspended ceiling grid, however,
it may be easier to access from both the top
and bottom of the ceiling tile during the
installation process. Typical installation hard-
ware needed for either suspended ceilings or
sheetrock ceilings is included. The ceiling
speaker assembly is held in place by mount-
ing tabs that securely grip the ceiling materi-
al. Input wiring is attached to a removable
terminal block connector that can be pre-
wired if necessary before speaker installation
to speed up the installation process.
INSTALLATION NOTE: USE OF OPTIONAL
ROUGH-IN ACCESSORIES
For most installations, no additional hardware
is needed. However, a two-step installation
procedure that is sometimes used for installa-
tion into sheetrock ceilings can be made easier
by the use of the optional RR and RPK series
of rough-in accessories before the ceiling
material is installed. The rough-in accessories
provide a cutout guide when many holes are
to be made in a production-line style installa-
tion and to ensure the speakers are positioned
correctly as the holes are cut in the sheetrock.
Depending on the requirements, two types of
rough-in accessories are available.
RR Series Mounting Plates
RR series plates are made of flat sheet metal
with holes to attach to the joists or trusses of a
building structure. The holes are drilled for
nails or screws at 16 inches (406 mm), 20 inches
(508 mm) and 24 inches (610 mm) on-center.
The installer can drill other holes as needed up
to a maximum of 24-3/4 inches (630 mm)
apart. The sheetrock installs over the plate, and
the plate provides a template for a blind cutout
of the hole in the sheet rock. The ceiling materi-
al is generally cut with a router-type cutting
tool, using the plate ring as a cutout guide. The
mounting plate is illustrated in Figure 4.
4
Installation and Wiring
Figure 4: Speaker mounting plate
RPK Series Kits
The RPK series rough-in kit contains a RR
series plate with a standard 2 gang electrical
box mounted on the top with an attached
short length of flexible conduit which con-
nects to the ceiling speaker conduit clamp on
the speaker's rear terminal cover. This acces-
sory allows for rigid conduit to be run to the
box on the rough-in plate before the speaker
or any sheetrock is installed. After the
sheetrock is installed the speaker can be wired
up and mounted all from below the ceiling.
The RPK mount system is shown in Figure 5.
Figure 5: RPK mounting system
INSTALLATION NOTE: CONTROLLING
VIBRATION
Because of their high performance, EVID ceil-
ing loudspeakers can generate substantial
vibration, which can cause buzzing in loose
sections of the ceiling structure. Depending
on the character of the ceiling tile and related
components, dampening material may need
to be used under the tile rails or the edges of
the tiles to eliminate rattles.
EVID™ Ceiling Series Installation and Operation Manual
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