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Suspending DRM18S and DRM12A Loudspeakers
Combinations of DRM18S
and DRM12A loudspeakers
may be suspended
in the same array.
When doing so, DRM18S(s)
are always suspended above
DRM12A(s). Therefore,
the DRM18S is attached
to the FB100 Flybar first.
Remember that a maximum
of two (2) DRM18Ss and four
(4) DRM12As may be
attached to a suspended
FB100 Flybar.
1. Positioning a Flybar Shackle:
The Flybar is suspended by a user-supplied shackle. Its position
on the flybar's numbered center bar is determined by the required
Array Configuration and aiming angle.
2. Attaching the shackle and hoist cable:
A user-supplied screw pin anchor shackle or safety bolt anchor shackle
is used to affix a hoist motor and/or cable to the flybar. Allowable shackle
sizes are:
Minimum:
0.75 T, 9 mm / 0.31 in
Maximum:
3.25 T, 16 mm / 0.63 in
USER
SUPPLIED
SHACKLE
FB100 FLY BAR
DRM18S
SUBWOOFER
2
3. Suspending DRM18S Arrays:
At least two (2) people are required to lift, stack and ready DRM18S
subwoofers for suspension from the FB100 Flybar.
a. Place a DRM18S subwoofer on the floor or similar stable surface
below the desired rigging point.
b. Install the Rigging Kit on each DRM18S subwoofer as described
in the document that accompanied the kit.
c. Stack an additional DRM18S subwoofer, if desired.
d. Each DRM18S subwoofer has latches stored at the bottom
of the two (2) rigging tubes. These latches are held in their stored
position by quick release pins. When using two subwoofers in the array,
remove the two (2) pins of the top subwoofer. The latches will release
and slide into the two (2) tubes of the subwoofer below them. Align
the holes in the tubes to those in the latches and lock them together
by fully inserting the quick release pins.
PIN
LATCH
TUBE
e. Remove the FB100 Flybar's quick release pins and insert its front
two fixed latches into the top DRM18S's rigging tubes. Align the holes
in the tubes to those in the latches and lock them together by fully
inserting the quick release pins.
f. Attach the rear bracket (previously assembled to the DRM18S
subwoofer as part of the Rigging Kit) to the back of the flybar with M6
screws (A), flat washers (B), lock washers (C) and hex nuts (D) provided
in the Rigging Kit, as shown below. If a second DRM18S subwoofer
is suspended, the rear brace on that subwoofer should be attached
to the bottom of the rear brace on the DRM18S above, also using
the hardware supplied in the Rigging Kit. Tighten all screws using
the 4 mm hex key and 10 mm (or small adjustable) wrench.
B
A
g. Hoist the array to the desired trim height or to the working height
needed for the next applicable procedure.
4. Attaching DRM12A loudspeakers to a suspended DRM18S subwoofer:
At least two (2) people are required to lift and attach an DRM12A
loudspeaker to a suspended DRM18S subwoofer.
a. The two (2) side latches on the bottom suspended DRM18S
subwoofer must be lowered from their stored position. Do this by removing
the two (2) bottom quick release pins; the latches will drop to their ready
position. The bottom rear latch should remain pinned in its stored position.
b. Lift and position the DRM12A loudspeaker so its rigging
tubes capture the two (2) side latches of the DRM18S subwoofer.
Align the holes in the tubes to those in the latches and lock them
together by fully inserting the quick release pins.
c. Repeat steps 4a and 4b for any additional DRM12A loudspeakers
to be added to the array.
d. Hoist the array to the desired trim height.
PIN
SIDE
LATCH
TUBE
5. Attaching DRM12A loudspeakers to the FB100 Flybar:
Only one (1) person is required to suspend the first two (2) DRM12A
loudspeakers from the FB100 Flybar. If a third (3) or fourth (4) DRM12A
loudspeaker is to be suspended, then two (2) people are required to lift
and attach those.
a. Attach a lifting apparatus to the FB100 Flybar at the desired rigging
point and hoist the flybar above head height.
b. Stack and lock together up to two (2) DRM12A loudspeakers
D
C
on the floor or similar stable surface below the flybar. This procedure
is similar to those outlined in sections 3b through 3d.
c. Lower and position the FB100 Flybar. Remove the flybar's two (2)
side quick release pins and insert its two (2) fixed latches into the rigging
tubes of the top DRM12A loudspeaker. Align the holes in the tubes to those
in the latches and lock them together by fully inserting the quick release
pins.
TWO (2)
LATCHES
TWO (2) PINS
TWO (2)
TUBES
TWO (2) DRM12A LOUDSPEAKERS
STACKED AND LOCKED TOGETHER
d. Hoist the array to the desired trim height.
TWO (2)
LATCHES
TWO (2) PINS
TWO (2)
TUBES
If a third (3) or fourth (4) DRM12A loudspeaker is added, they must be
individually lifted and locked to the bottom of the array by two (2) people.
This procedure is similar to those outlined in sections 4a through 4c.
TILTED
FLY
BAR
3
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