Martin Audio MLA User Manual page 63

MLA System
USER GUIDE
The front bracket is a little different to other systems in that it is a rigid bracket protruding at both top and bottom of the front
of the cabinet at each side;
The cabinets are joined using machined quick-release pins. There are an identical design to the MLA pins but a smaller size. These
have spring loaded ball bearings at the end of the pin which protrude beyond the outer diameter of the pin thus locking them in
place. To release them, the central button is depressed whilst pulling the pin clear using the wide flange. This is best done with
MLA System User Guide V2.1
63