Suspension Adapter Plates for ALL CBT Models Suspension Adapter Plates for ALL CBT Models. Bent-metal adapter plates that provide convenient clip points for suspending CBT speakers via aircraft cable and other methods. Includes 2 pcs, for top & bottom mounting. Provides 3 clip points each -- center and two sides. Drilled with three speaker spacing/bolt patterns to fit: CBT-50LA-1, 100LA-1, 200LA-1, 70J-1, 70J-1+70JE-1 array, 1000, 1000+1000E array. The MTC-CBT-SUS3 suspension bracket can be mounted to the top and bottom of the CBT 1000 and CBT 1000 + 1000E System if desired. Special hardware in included in the kit that is designed for use with this bracket mounting place (M8 x 40 mm x8) and it is the only hardware that can be used for this purpose.