JBL Control 12C-VA Owner's Manual & Installation Manual page 4

Step 1 – Cut the Hole in the Ceiling Material.
out the circular hole to the cutout hole size listed above. Pull
the wiring through the cutout hole.
Hole Cutout
Step 2 – Insert Backing Hardware Through the
Hole.
Packaged with the speakers are two types of backing
hardware – a C-shaped backing-plate bracket and two tile rails.
Suspended Ceilings – Insert the C-plate through the hole
cut in the ceiling tile. Place the C-plate around the hole with
the tabs located as shown on Figure 4. Insert the tile rails
through the cut hole in the ceiling tile. Snap the two rails
into the two tabs in the C-plate and align the rails so that the
ends extend OVER the T-channel grid on the side of the tile.
Secure the rails onto the C-bracket tabs by inserting a screw
though each tab into the rail. This can all be accomplished
from below the ceiling tile, if necessary.
FOR SAFETY:
IMPORTANT TO USE BRACKETS
ALL included support brackets – C-plate and
tile rails -- MUST be used when installing into
suspended ceiling tiles.
C-Bracket and Tile Rail Positioning on Ceiling Tile
Figure 3:
Figure 4:
Additional Suspended Ceiling Installation
Information
Cut-
Tile Rails: The tile rails are designed to fit either standard
24-inch wide tiles or 600-mm wide tiles. The tile rail piec-
es do NOT physically attach to the T-grid struts. Instead,
the inverted-V shape at the ends of the rails sit OVER
the T-grid strut. During normal operation, the rails are
supported by the edge of the tile. If the tile were to come
out or fall apart, the ends of the support rails are designed
to catch onto the T-grid, providing secure support to hold
the loudspeaker assembly in place.
Vibration Reduction: Loudspeakers can generate sub-
stantial vibration which can cause buzzing of the ceiling
materials or structure. Depending on the character of the
ceiling tile and structure, the installer might need to place
neoprene or other dampening material under the tile rails
or the edges of the tiles to eliminate rattles.
Cutout Placement: The tile rails are pre-punched with
attachment holes along their length. Placement is not
limited to the center of the tile as is the case with many
other tile rail support systems.
Non-Suspended Ceiling Types – The C-bracket can be
optionally used by itself to shore up the ceiling material and
to spread out the clamping force from the tab clamps. Insert
the C-plate through the cut hole in the ceiling and place it on
the back side of the hole before inserting the speaker.
Step 3 -- Removing Terminal Cover.
screws holding the Terminal Cover Plate (you do not have to
remove them), slide the plate to where the screws line up with
the larger end of the keyholes, and remove the Terminal Cover
Plate.
Loosening the four set screws holding the Terminal Cover Plate
4
Loosen the 4
Figure 5:
and removing the plate.