The use of the A 20 is recommended if the solid-borne sound insulation should be better than with a rigid stand clamp.

The base has a 5/8"-27 NS internal thread with adapter for 3/8" and 1/2" included. A special clamp secures the microphone cable. This is necessary with the A 20 and advantageous with the A 20 S. The microphone can be tilted to any angle.

A 20 S: variant with stiffer elastics than the A 20

When accessories such as the CUT 60, GVC or S 250 C are added to the CMC microphone, the stiffer elastics of the A 20 S are required.