Schoeps Cut 1 - Colette Series Low-Cut Filter (70Hz to 600 Hz at 24dB /Octave)
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can be screwed onto the CMC, CMD or M 222 microphone amplifiers
very effective suppression of low-frequency and infrasonic effects of wind and vibration: 24 dB/oct below 60 Hz
user-adjustable variable rolloff
offsets proximity effect
The CUT 1 is inserted between the capsule and the microphone amplifier. The CUT filter performs two tasks:
First, it prevents the effect of infrasonic disturbances from being passed on to any succeeding device.
In particular, pressure-gradient transducers (directional microphones) produce very high infrasonic signal levels when exposed to wind. These can saturate an input transformer or an amplifier stage even before the audible portion of the disturbance becomes noticeable.
To avoid this, a very sharp (24 dB/oct) infrasonic filter is permanently engaged. It has only a negligible effect on speech, which is the principal field of application for the CUT 1 (cutoff frequency = 60 Hz).
The second task is to offset proximity effect and/or to improve speech intelligibility in reverberant rooms by means of an additional 6 dB/oct rolloff. By turning a recessed thumbwheel the user can vary the frequency at which this begins to have an effect, and thus tailor the low-frequency response as required. Its turnover frequency can be continuously varied between 70 Hz and 600 Hz