Schoeps LP 40 U Active Low-Pass Filter

The Schoeps LP 40 U Active Low-Pass Filter is designed for use with phantom-powered microphones. 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 the LP 40 U.