User manual SENNHEISER MKH 20

[. . . ] When it is normally intended for use with dynamic microphones, it can be necessary to reduce the output voltage from the microphone by means of a voltage divider. This should be built into the microphone cable at the amplifier input. By this means the large signal on the microphone cable is maintained up to just before the amplifier, which helps to increase the signal to noise ratio. Connection to Amplifiers with Defined Input Impedances Sennheiser studio condenser microphones can be connected directly to all amplifiers whose input impedance is larger than 400 n. [. . . ] Connection to Amplifiers with Defined Input Impedances Sennheiser studio condenser microphones can be connected directly to all amplifiers whose input impedance is larger than 400 n. However, if the input impedance is smaller than 400 n, a resistor of appropriate value should be placed in series with the microphone so that it "sees" at least 400 n. The voltage division caused by this series resistor must 01 course be considered. The same method can be used when a higher output impedance of the microphone is demanded. In this case again aseries resistor can be used to provide correct matching. Connection to Amplifiers with Powering Facilities If an appropriate voltage source is available in the amplifier the condenser microphone can be powered directly. the voltage should be 12 volts :t 2 volt. It should be so stabilised and filtered, that the unweighted noise voltage is less than 5 /LV and that the weighted noise components are less than 2 /LV. the current consumption 01 the microphone is approximately 6 mA. According to the DIN standard the feed resistors should be 2 x 180 n. This should be considered when the amplilier input plug is being wired. Connection to Amplifiers with balanced Inputs In this case the microphone is simply connected to the input of an amplifier via a battery adapter or the power supply MZN 16 T. Connection to Amplifiers with unbalanced Inputs In many cases, for example most tape recorders, the input socket is unbalanced. in this case one side of the balanced microphone output has to be earthed. Apart lrom cases where the microphone Windshield MZW 415 The foam-rubber-windshield should be drawn over the sound inlets of the microphone when wind disturbances are evident. Power unit MZN 16T andT-U For two 220 The simultaneous powering of mierophones. Fitted with 3 pin conneetors according to DIN 41524. The swivel mount gives the possibility to use the desk stand together with the microphone clamp or the shock mount for the MKH 20. Shock Mount MZS 415 The shock mount can be conDesk Stand MZT 441 The MZT 441 is together with nected to all tripods, booms, etc. The swivel mount MZG 415 and with 3/8" threads and prevents the microphone clamp MZQ 415 recordings being disturbed by or the shoek mount MZS 415 a footfall or other strong mechanistable desk stand for the cal disturbances. [. . . ] Shock Mount MZS 415 The shock mount can be conDesk Stand MZT 441 The MZT 441 is together with nected to all tripods, booms, etc. The swivel mount MZG 415 and with 3/8" threads and prevents the microphone clamp MZQ 415 recordings being disturbed by or the shoek mount MZS 415 a footfall or other strong mechanistable desk stand for the cal disturbances. The microphones are powered from the transmitter. Connecting cable KA 7-1 For use with all Senn heiser microphones with the suffix U. [. . . ]