User manual SENNHEISER MKH 70

[. . . ] Senn heiser condenser microphones produce relatively large output voltages, these can be up to 1 volt with maximum sound pressure levels. This has the advantage that even with long cables induced interference signals can be disregarded. Also the internal noise produced by the microphone does not contribute to the total noise level. The microphones are fitted with high frequency filters, which ensure that no high frequency signals from the microphone can affect the external circuitry, and also that the microphone itself is protected from~high frequency It is, therefore, not necessary, even under the most difficult conditions, to take special precautions such as double screening of the cables or the provision of high frequency filters. [. . . ] The microphones are fitted with high frequency filters, which ensure that no high frequency signals from the microphone can affect the external circuitry, and also that the microphone itself is protected from~high frequency It is, therefore, not necessary, even under the most difficult conditions, to take special precautions such as double screening of the cables or the provision of high frequency filters. Sennheiser condenser microphones are polarised according to DIN standard ie. When apressure signal strikes the capsule from the front, Pin 1 goes positive with reference to Pin 3. This should be considered when the amplifier input plug is being wired. Connection to amplifiers with symmetrical inputs In this case the microphone is simply connected via the battery adapter MZA 6-2, or the power unit MZN 5-1 to the inputs of the amplifier. Supply MZN 6, which can feed up to six microphones, can be used. In this case it should be noted that the power supply is delivered without feed resistors and these must be added by the user. Connection to amplifiers with unsymmetrical inputs In many cases, for example most tape recorders, the input socket is unsymmetrical. in this case one side of the symmetrical microphone output has to be earthed. Apart from cases where the microphone is being used for professional studio purposes, this is not critical, as the large output voltage of the microphone combined with its low output impedance provides a large signal to noise ratio. Ean be found in our eatalogue "miero-revue". 0470) ean be connected into the microphone line at any point. fitted with 9 mercury cells Mallory RM 625 , it provides a continous operation for 50 to 60 hours. The mercury cells can be purchased in all shops which cater for the hard of hearing. To prevent an unnecessary discharge of the batteries, the battery adapter should be unscrewed from the microphone when it is not in use. 1029) Fitted with cannon connector XLR-3-11 C and plug XLR-3-12 C for use with the MKH-U types. Special feature: If the plug and connector are connected together the battery condition is indicated by a bui It-in signal diode. To prevent an unnecessary discharge of the batteries the battery adapter should be unscrewed from the microphone when it is not in use. The microphone inputs must be ungrounded or it would be necessary to use isolating transformers at the inputs. Crosstalk attenuation between channels is greater than 100 dB. [. . . ] To prevent an unnecessary discharge of the batteries the battery adapter should be unscrewed from the microphone when it is not in use. The microphone inputs must be ungrounded or it would be necessary to use isolating transformers at the inputs. Crosstalk attenuation between channels is greater than 100 dB. connectors Miniature edge connectorT 2700 (Amphenol-Tuchel). [. . . ]