Carvin TRX12N TRx2000series manual - Page 3

SUSPENSION AND STACKING INFORMATION 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. TCSHK10 3/8"-16 forged steel eyebolt WLL=1600 lbs. TCSHK58 5/8" forged steel shackle WLL=6500 lbs. 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. Cutaway view of TRx cabinet showing rigging points. 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 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