Variable Low-Cut Filter CUT 1/ CUT 2

CUT 1 with MK microphone capsule and CMC microphone amplifier
Of course it is to be expected that filters such as the CUTs will affect the naturalness of the sound picked up by the microphone. But in many cases the CUTs (in combination with the appropriate windscreen) are the only means by which an acceptable recording can be made at all.
The CUTs raise the sensitivity of standard microphone amplifiers by 5 dB, while those marked with “+ 5 dB” will retain their increased sensitivity.
As an aid to properly seating the windscreens W 20 and W 20 R1, the diameter of the CUTs have a slight step near their front ends.
Since the weight of a microphone increases with the addition of a CUT, the stiffer elastic suspension A 20 S is required.
User Guide
Colette
Microphone Capsules