Meyer Sound Awarded Patent for M3D/M3D-Sub Rigging System

Jan 21, 2004 12:00 PM, Editors


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The United States Patent Office has awarded Meyer Sound its 17th U.S. patent, this time for the rigging system used on the M3D line array (pictured) and M3D-Sub directional subwoofer. The issuance of a patent recognizes the rigging system’s innovations, including the CamLink system, which allows splay angles to be changed much more easily than in other rigging systems.

The rigging system features a rigid design, which offers numerous advantages, including no need for a pullback cable. Without pullback cables, cabinet angle adjustments can be made without having to release the array, while the rotating cam at the rear of the frame means that only the front of the cabinet needs be adjusted to change the splay angle; no parts need be exchanged.

Rigid mounting also allows arrays to be transported intact, maintaining cabinet splaying, saving truck space and greatly simplifying and speeding setup. There is no need to lay array components horizontally onstage and assemble them; arrays (typically in modules of two or three cabinets) are rolled out of the truck, attached to the hoist cables and flown. Additional modules can be easily attached, as needed. A transition bar allows downfill speakers to be hung from the bottom of an array, and all rigging linking components are stowed within the end frame itself or remain captive in use.

For more information about the M3D and M3D-Sub, visit and, respectively.

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