SCHOEPS CUT 1/CUT 2 Low-cut Filters

Mod:[SCCUT1] Prod: Schoeps
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Variable Low-Cut Filters CUT 1#, CUT 2#
  • can be screwed onto the CMC microphone amplifiers
  • user-adjustable variable roll-off
  • very effective suppression of low-frequency and infrasonic effects of wind and vibration: 24 dB/oct below 60 Hz (CUT 1#) or below 30 Hz (CUT 2#)
  • offsets proximity effect
  • The CUT 1 or CUT 2 is inserted between the capsule and the microphone amplifier (CMC–or M 222); see system overview.
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 infrasonic filter, which is permanently in the circuit, cuts off frequencies below 60 Hz at a slope of 24 dB/oct. This has only a negligible effect on speech which is the principal field of application for the CUT 1.

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 roll-off. 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 35Hz (CUT 2) and 70 Hz (CUT 1) and 600 Hz.

Diameter = 20 mm (Rycote Small Hole)


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