Control 321C/CT & 322C/CT
Installation Instructions
MTC-300BB12 Backbox
Shown as Cut-Away for Clarity
1
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.
Slide EZ-Rail onto the flange of the
JBL MTC-300BB12 (or compatible
other brand) backbox.
– Over –
2
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.
Loudspeaker
Pre-Mounted
Metal Baffle
EZ-Rail
™
