MG-3D/M MULTIPURPOSE GRID AND ACCESSORIES
PN: 05.132.036.01 B2
Page 8 of 32
Meyer Sound Laboratories Inc.
www.meyersound.com
T: +1 510 486.1166
F: +1 510 486.8356
LOAD RATINGS OVERVIEW
The MG-3D/M multipurpose grid can accommodate a variety of different pickup configurations using its six pick-
up points (three on each side of the frame). All of the load ratings in this assembly guide take the following into
consideration:
The angle of the bridle at the apex is no greater than 90 degrees.
The weight of the MG-3D/M grid itself has been included.
The maximum number of MILO loudspeakers that may be hung in each configuration is based on the MILO weight
of 235 lbs (106.60 kg).
The maximum number of M3D/M3D-Sub loudspeakers that may be hung is based on the M3D weight of 415 lbs
(188.24 kg) and the M3D-Sub weight of 395 lbs (179.17 kg).
The load ratings and maximum weights allowed regard the MG-3D/M grid and flown loudspeakers as a system,
including links and pins. Thus, the maximum stress point could change from one element to another in the system.
CAUTION: Using a bridle leg shorter than the recommended length for each configuration will reduce
the load rating and may damage the MG-3D/M grid.
CAUTION: Always use properly rated rigging hardware. The use of 3/4" shackles for the MG-3D/M
grid's pick-up points is recommended.
When flying an array of loudspeakers as discussed in this guide, the entire weight of the array can shift completely to
either the front or back motor or set of motors; the degree of shift depends on the splay between individual cabinets
in the array, the number of cabinets, and the angle of the MG-3D/M grid. Accordingly, this guide rates the MG-3D/M
rigging system for the "worst case" loadings that can occur at the final trim of an array while maintaining a 5:1 or 7:1
safety factor. Configurations using angled bridles are shown with an angle at the apex of 90 degrees, resulting in the two
angles between the bridle and MG-3D/M grid at the prescribed bridle length (45 degrees each).
With the use of transition accessories, you can also integrate other M Series loudspeakers with MILO or M3D/M3D-
Sub loudspeakers, to form combined arrays such as:
M3D/M3D-Sub and MILO
MILO and M2D
M3D and M2D
M3D, MILO and M2D
CAUTION: The weight of any additional items hung with the array, such as downfill loudspeakers and
transition accessories and cable, must be considered when calculating maximum load.
(28 pages)
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