Prior to suspending or stacking any loudspeaker systems, it is essential that the
user be familiar with overhead suspension and stacking techniques, load ratings,
and safety considerations.
suspEnsion
TRx series loudspeakers are fitted with captive 3/8”-16 threaded receptacles for
suspension or permanent installation. Each captive nut has a WLL of 500 lbs. (226 kg.).
Note: Working Load limits are based on vertical pull or 0°, for derating please see derating
note below.
de-RATInG:
Using the mounting points at an angle will de-rate the “WLL”
(working load limit) for each point. Each point mounted at an angle should be
de-rated according to the following formula.
“WLL”=cosine(angle) x 500 lbs.
angle = degrees form vertical pull
500 lbs. = WLL for each TRx mounting point @ vertical pull
WARnInG –
Never exceed the “WLL” throughout the suspension system
.
dAngEr:
1) Hardware found at your local hardware store should not be used as it may not
be rated for this application.
2) Mounting or rigging loudspeakers is a serious endeavor, always seek the advice
of qualified experts.
3) Never use the handles for suspending the loudspeaker, they are not designed or
rated for this purpose.
4) Improper installations may result in damage, injury or death.
cAution:
All hardware used for overhead suspension should be designed and
used with a minimum 7:1 design factor. This is the ratio between the structural
failure point and the loading to be applied to the component. Periodically inspect
and maintain all rigging points on the loudspeaker and all suspension hardware.
noticE:
The user assumes liability for proper design, installation and use of
rigging systems.
iMportAnt notE:
All fly point holes of the TRx loudspeakers must be occupied by tightened
hardware, either with the mounting hardware (eyebolts) or “plugged” by the hex-
socket screws provided.
There are two reasons for this. When the loudspeaker is suspended from one end,
the load is transferred through the internal steel bracing to the bolts in the adjacent
wall of the enclosure for structural support. Also, if the holes are not “plugged”
this will create air leaks compromising the low frequency performance of the
enclosure.
stAcKing
Ensure that the floor, stage or soundwings are level and solid. Be cautious
of outdoor windy conditions, speaker stacks could topple over in high wind
conditions or be accidentally pushed or bumped over by over-zealous crowds.
Loudspeakers producing very high SPL (especially subwoofers) can shift from
their original position. Ensure the feet of the loudspeakers are locked into the
feet cups of the speaker below. Place frictional material between the floor and the
loudspeaker.
sYstEM sEtups
The TRx 2000 series is designed to offer a large variety of options when
configuring a system, and can also integrate with TRx3000 series elements such
as the TRx3903 column array, TRx3210 Line Array, or TRx3218 subs. As with
any system, consideration should be made to match SPL of main and subwoofer
cabinets. For instance use a TRx2218 to keep up with the SPL capability of a single
TRx2153 or TRx2215. When a large system is running, it is difficult to detect
power amp clipping or subwoofer distortion which may damage the sub.
TRx12N
SS4 POLE
TRx2118
suspEnsion And stAcKing inForMAtion
Cutaway view of TRx cabinet
showing rigging points.
TCSHK10
3/8”-16 forged steel eyebolt
WLL=1600 lbs.
TCSHK58
5/8” forged steel shackle
WLL=6500 lbs.
TRx2115
SS4 POLE
TRx2121
(2x) TRx3903
(2x) SS7 POLE
TRx2118
(2x) TRx3210
(2x) SS4 POLE
TRx2121
TRx2115
SS4 POLE
TRx2118
TRx2215
TRx2118
(4x) TRx3210
TRx2218
(2x) TRx2153
(2x) TRx2218
