The installation of the Control Contractor 40 Series in-ceiling
loudspeakers can be accomplished, if necessary, without
requiring access above the ceiling. Bracketry for use with either
suspended ceilings or sheetrock ceilings is included (see below
for additional details on the Control 42C). The loudspeaker is
held securely in place via mounting ears which lock into place.
Inputs are attached to a removable locking connector (included)
which can be prewired before installing the loudspeaker for
ultra-fast snap-on installation.
The lightweight Control 42C (0.7 kg / 1.6 lbs) includes a C-
ring
but does NOT include tile rails. In the event that tile rails are
required, they are available as an optional accessory (MTC-Rail).
OPTIONAL PRE-INSTALLATION BRACKETS
IN MOST CASES, NO BRACKETS OTHER THAN THE ONES
INCLUDED WITH YOUR SPEAKER ARE REQUIRED. Everything
needed for most installations of these loudspeakers is provided
with your Control Contractor 40 Series in-ceiling loudspeakers.
Installation into sheet rock (typically gypsum board) can be
facilitated by the use of JBL’s optional preinstallation brackets
before the sheetrock is installed. The preinstallation bracket
provides a bracket to which wiring can be tied behind the
sheetrock and it can function as a cutout template when many
cutouts are to be made in a production-line style installation.
Two types of pre-installation brackets are available from JBL
Professional as optional accessories:
1) The optional NEW-CONSTRUCTION BRACKETS (available
options and listed below) are made of flat sheet metal, with
wings to attach to the building structure. Holes are drilled for
nails or screws at 16 inches (406 mm) and 24 inches (610 mm)
on-center. Additional holes can be drilled by the installer at
other spacings up to a maximum of 24-3/4 inches (630 mm)
apart. Sheet rock installs over the bracket, and the bracket
provides a template for blind cutout of the hole in the sheet
rock. The sheet rock is typically cut with a router-type cutting
tool, using the bracket ring as a cutout guide.
Available New Construction Brackets
MTC-42NC for the Control 42C
MTC-26NC for the Control 45C/T
MTC-47NC for the Control 47C/T & Control 47LP
MTC-19NC for the Control 47HC & Control 40 CS/T
2) The optional MUD-RING BRACKET (available options and
listed below) contains a circular offset, forming an edge guide
for sheet rock plastering. The bracket has wings that attach to
the building structure. Sheet rock is typically precut, then the
sheet rock hole can be plastered (or “mudded”) up to the ring to
create a seamless cutout.
Available Mud-Ring Brackets
MTC-42MR for the Control 42C
MTC-26MR for the Control 45C/T
MTC-47MR for the Control 47C/T & Control 47LP
MTC-19MR for the Control 47HC & Control 40 CS/T
USING INCLUDED C-BRACKET WITH SHEETROCK
For many installations, the INCLUDED C-shaped backing plate
provides adequate reinforcement to the ceiling material,
spreading out the clamping force from the tab clamps.
CUTOUT SIZES
Packaged with the speakers are cardboard cutout templates for
scribing the cutout hole onto your ceiling surface. The cutout
size diameters for the Control Contractor 40 Series are listed on
the following page.
CONTROL 40 SERIES PREPARATION
Optional New-Construction
Bracket
Optional Mud
Ring Bracket
3
JBL Professional Control Contractor 40 Series
