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The installation system has been designed so that the entire
installation can be accomplished from beneath the ceiling, for
instances when access above the tile is not possible or practical.
However, in some cases it may be easier with removable ceiling
tiles to access from both the top and bottom of the ceiling tile
during various phases of the installation.
Step 1 – Cut the Hole. Cutout the hole size either by tracing the
cardboard cutout template or with a circular cutter set to the
cutout sizes listed below and pull the wiring through the cutout
hole.
Control 42C:
4.1
inches (104 mm)
Control 45C/T:
8.8 inches (220 mm)
Control 47C/T:
11.1
inches (282 mm)
Control 47LP:
11.1
inches (282 mm)
Control 47HC:
12.1
inches (307 mm)
Control 40CS/T:
12.1
inches (307 mm)
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 (except for the lightweight Control 42C which does
NOT include 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 pointing upwards enabling the C-plate to lie
flat on the tile. Insert the tile rails through the cut hole in
the ceiling tile. Snap the two
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 through each
tab into the rail. This can all be accomplished from below
the ceiling tile, if necessary.
For safety when installing in suspended ceiling tiles, utilize
all included brackets. Note that the lightweight Control 42C
includes a C-ring only, which may be all that is required for
some applications. If the application calls for tile rails, they
are available separately as part number MTC-RAIL.
4 JBL Professional Control Contractor 40 Series
CONTROL 40 SERIES INSTALLATION
Hole Cutout
rails into the two tabs in the
Tile Rails: The tile rails are designed to fit either standard 24-
inch wide tiles or 600-mm wide tiles. The tile rail pieces 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.
In the unlikely event that the tile comes out or falls 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:
These loudspeakers can generate
substantial 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 address rattles from the ceiling materials.
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.
Two Landing Dog-Ears – All
Control 40 Series Loudspeakers
(except the Control 42C) are
equipped with a two-landing
dog ear suspension system
enabling them to be used with
ceiling tiles that are up to 70
mm (2.75 inches) thick. If using
Control 40 loudspeakers with
ceiling tiles that are greater
than 54 mm (2.125 inches)
thick, start with the dog ear
in the second (top) landing to ensure clearance and ease of
installation.
C-Bracket and Tile
Rail Positioned on
Ceiling Tile
Second Landing
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