The MK 8 is often used for M/S and double M/S stereo sound in film sound and music recording, in combination with Colette or CCM microphones and/or a CMIT shotgun microphone.
This type of capsule is a pure dipole. The figure-eight pattern of the MK 8 remains constant from low to high frequencies, which is particularly important when used in an M/S setup. Its sensitivity rolls off more at low frequencies than other capsules, but proximity effect (which can compensate, given relatively close placement) is also more pronounced.
Production of the MK 8 is a special technical accomplishment because, in terms of physics, the available force due to the pressure gradient is minimal. Despite this, the MK 8 has excellent frequency and polar response, near-perfect front/back symmetry, and low inherent noise.
The microphone is comparatively sensitive to solid-borne sound as well as wind and breath noise. Good protection should be considered, e.g. suitable wind screening and/or shock mounting.
The pickup direction is lateral, i.e. perpendicular to the microphone housing, and the 0° and 180° axes are indicated respectively by red and black dots on the capsule housing. When recording with M/S, the 0° axis (as viewed from a position behind the microphone) should point to the left, and the “8” engraved on top of the capsule should be precisely horizontal.
|Frequency range||40 Hz – 15 kHz with CMC6,
40 Hz – 15 kHz with CMC6xt (above 20 kHz, the level of -3 dB for the cutoff frequency is not exceeded despite the xt boost)
|Sensitivity||-38,5 dB (V/Pa), 12 mV/Pa with CMC 6|
|Equivalent noise level (A-weighted)||17 dB with CMC 6|
|Equivalent noise level (CCIR)||26 dB with CMC 6|
|Signal-to-noise ratio (A-weighted)||77 dB with CMC 6|
|Maximum sound pressure level (THD < 0.5 %)||133 dB-SPL with CMC 6|
|Surface finish||matte grey (g) or custom colour|