Start with the position of the microphone head relative to the mounting surface. A lectern drawing should show the panel angle, base location and desired head position. For a tabletop unit, give the base height and the horizontal reach needed for a seated speaker. These dimensions help establish the working length and stiffness of the arm.
Identify each end separately. At the base, specify the thread diameter and pitch or the dimensions of the mounting socket. At the top, supply a drawing of the capsule housing or microphone clip and its assembled weight. For internal wiring, state the cable outside diameter and whether an assembled connector must pass through either fitting.
Fit the sample to your base with the microphone head and cable installed. Set it at the longest intended reach and check for drift. Move it between the positions speakers will use, checking adjustment effort, cable clearance and whether either fitting loosens. Include any required changes, finish and production quantity with the sample review.
For a slimmer arm that mounts on a headset, see our custom microphone boom arms.
