Microphone capsule MK 22
The MK 22 has been developed for use as a spot microphone. It unites the strengths of the MK 4 and MK 21 capsules. Its directionality is only slightly less than that of the MK 4 cardioid, while its sonic character is reminiscent of the MK 21 wide cardioid. Its directivity is essentially constant throughout the frequency range. Its inherent low-frequency response is somewhat more pronounced than that of the cardioid, while proximity effect is somewhat less.
MK 22 capsules are well suited for use as stereo pairs. The well-known “Williams curves” indicate the possibilities for ideal miking arrangements. The curves shown below for the Open Cardioid give the stereophonic recording angle as a function of the angle between two microphones and the distance between their capsules.
One possible arrangement, for example, would be a distance of 21 cm with a 110° angle between the microphones.
The STC 22 mounting bar facilitates the use of this arrangement with two MK 22.