AK… active capsules are part of the variable miniature microphone system. Together with the KM100 output stage AK… active capsules form a complete microphone. AK30 and KM100, for example, make up the KM130.
AK20 is a pressure gradient transducer with the figure-8 characteristic, realized with a single diaphragm. The diaphragm diameter is just 16 mm. All sound field components reach the diaphragm directly. This results in identical frequency response curves and output levels at 0 and 180 sound incidence. Corresponding accessories allow combining the AK20 with other active capsules or microphones to obtain an MS-Stereo setup.
