JBL MTC-CBT-SUS3 Installation Guide
MTC-CBT-SUS3
Suspension Bracket for CBT Speakers
CAUTION:
Installation must be done by qualied persons
using safe rigging standards.
The installer is responsible for proper selection and use of
mounting hardware to properly and safely suspend the speakers.
Included:
2 x MTC-CBT-SUS Brackets
8 x M6 x 20 mm PAN HEAD BOLTS (for CBT 50LA-1, 100LA-1, 200LA-1, 70J-1, 70JE-1)
8 x M8 x 20 mm PAN HEAD BOLTS (for CBT 1000, 1000E back panel)
8 x M8 x 40 mm PAN HEAD BOLTS (for CBT 1000, 1000E top or bottom end-cap)
8 x M6 FLAT WASHERS and 8 x M6 LOCK WASHERS
8 x M8 FLAT WASHERS and 8 x M8 LOCK WASHERS
Step 1: Find the locations of the mounting hole pattern on the bracket that correspond with the specic CBT
loudspeaker model. Note the correct hardware size (M8 or M6) that correspond with that model.
90
219
[8.6]
[3.5]
Ø 15 [0.62] dia (x3)
Clip Points
M8 Clearance Holes (x4)
for CBT 1000, 1000E
M6 Clearance Holes (x4)
for CBT 50LA-1, 100LA-1, 200LA-1
M6 Clearance Holes (x4)
for CBT 70J-1, 70JE-1
30°
Dims in mm [in]
Step 2: Position the brackets on the back of the speaker so they use the four insert points closest to the top
and bottom of the box (see drawing). Make sure that the at washers and the lock washers included are used
as shown. Utilize 4 bolts per bracket (total of 8 bolts for top and bottom bracket).
When the speaker is installed in upright orientation, orient the 15 mm (0.62 in) Clip Points (on the 30 degree
bend of each bracket) at the top for the top bracket (as the main load points) and at the bottom for the bottom
bracket (as a pull back for aiming). For other orientations, consult a licensed structural engineer.
8 PLACES (4 per Bracket):
PAN HEAD BOLT
FLAT
WASHER
LOCK
WASHER
M6 x20 mm or M8 x 20 mm
(depending on speaker model,
see diagram on page 1)
CBT 1000 shown Assembled
Step 3: Suspend the attached suspension bracket system via the 15 mm (0.62 in) Clip Points located on the
30 degree bend on each bracket.
Be sure to consult the building codes in your area to determine the proper materials and methods. Be sure
the building’s structural mounting points are capable of supporting the weight of the speaker assembly with the
required safety ratio. If you have any doubts about the materials, methods, or structural capability, consult with
a licensed structural engineer.
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