[. . . ] Two different power supply options are available: Battery power supply, 1. [. . . ] The input impedance of the equipment to which the microphone is connected should be at least 600 Q. With built-in phantom power supply The microphone can process a maximum sound pressure level of >140 dB without distortion. In order to prevent the microphone input stage of the connected equipment from being overloaded the microphone sensitivity can be stepped down in two steps: -10 dB and -20 dB. The sensitivity switch must be operated either with the included switching tao I or with same other suitable tao I. Using the Roll off Filter The built-in roll off filter can be switched on and off with the help of a switch which can be accessed after the grip sleeve has been unscrewed. In order to get the most out of this microphone following instructions: please observe the Hold the microphone very dose to the mouth (Iip contact) . If distortion accurs correct the setting at the mixing desk or switch in the pre-attenuation (see also "Adjusting the Microphone Sensitivity") MKE 4032 P ("Studio" version) . In the event of wind interference or extreme demands upon pop noise use the supplied windscreen The bass roll off caused by the filter can be used in order to compensate the close talking effecl and to suppress impact, handling and wind noise. [. . . ] 100 hours 3-pin XLR plug Pin 1: earth Pin 2: audlo + Pin 3: audioapprox. [. . . ]