The Schoeps LP 40 U filter is designed to extend the frequency response of the Schoeps supercardioid (MK 41(V) or CCM 41(V)) with the lowest possible ripple. This makes it ideal for use with the OCT front surround system; it can also be used to extend the response of directional microphones with other patterns.
The low-frequency response of any directional microphone is inherently inferior to that of omnidirectional (pressure) microphones. When using directional microphones, one can extend the low-frequency response by adding in signals from omnidirectional microphones that have been low-pass filtered with a device such as the LP 40.
- For adapting the signal from a pressure (omnidirectional) microphone to fill in the bass region of directional microphones (especially with the OCT system)
- For phantom-powered microphones