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User Manual
Control 321C/CT & 322C/CT
Installation Instructions
Loudspeaker
1
™
EZ-Rail
Line up EZ-Rail™ with one of the
the backbox flanges containing a sin-
gle mounting hole. For orientation
when holding the speaker overhead,
two embossed arrows on the under-
side of the metal baffle indicate the
edge with the EZ-Rail.
Pre-Mounted
Metal Baffle
2
Slide EZ-Rail onto the flange of the
JBL MTC-300BB12 (or compatible
other brand) backbox.
– Over –
MTC-300BB12 Backbox
Shown as Cut-Away for Clarity
3
EZ-Rail helps to hold one side of
the speaker baffle TEMPORAR-
ILY during installation while the
installer installs the screws that hold
the baffle.
IMPORTANT
The installer MUST secure the
baffle in place with screws on all
sides.
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Table of Contents
Related Manuals for JBL Control 322CT
Summarization of Contents
Installation Instructions
EZ-Rail Installation Guide
Details the use of the EZ-Rail for temporary baffle support during installation.
Baffle Securing Requirement
Installer MUST secure the baffle with screws on all sides for proper installation.
Attaching Loudspeaker/Baffle with Screws
Mounting Option 1: Sheet Metal Screws
Uses 6 pcs #10 sheet metal screws with speed nuts for mounting to the backbox.
Mounting Option 2: Machine Bolts
Uses 4 pcs 4 mm machine bolts with threaded inserts for mounting to the backbox.
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