The MA-HPF is a very useful adaptor featuring an XLR (Female) input and on the other end an XLR (Male) output. This High pass filter is designed for 150 Ohm rated microphones and inputs. Perfect to reduce unwanted noise at low end in the microphone signal. Provides low cut of 12dB per octave below 100Hz. Slender, in-line design. Full metal case optimizes shielding to reduce hum. Passes through phantom power from the input.