microphone Sennheiser MKH 415 T

  
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The Sennheiser MKH 415 T is a medium shotgun microphone, powered by the 12VDC A-B standard (aka DIN 45 595, aka T  power). It was the forerunner to the popular MKH 416, which is still made. According to Sennheiser lore, the original MKH 415 prototype was longer, causing complaints from broadcast engineers that microphone operators would have to
microphone Sennheiser MKH 415 T - schematic

follow actors to keep them within the mic`s field of pickup. Dr. Hans-Joachim Griese reportedly interrupted the prototype demonstration to request a hacksaw, asking how much directivity would you like , then proceeded to saw off a length of the mic`s interference tube. The resulting shorter length was deemed an ideal compromise, and thus the shorter shotgun mic was born. Both the MKH 415 and 416 use RF Condenser technology, which combines a loose diaphragm tension with low polarization voltage to produce a low-noise signal with reduced susceptibility to environmental factors. The MKH 415 T represents a combination of a pressure gradient transducer and an interference microphone. The directional characteristic is super-cardioid at low and medium frequencies, at higher frequencies the directianal pattern is club-shaped. The microphone`s susceptibility to wind and pop noises is low due to the relative high acoustical membrane pressure The MKH 415 T, like all T-powered microphones, requires a specific power supply that is different from P48 phantom supplies that have become standard since the 415 was manufactured. Sennheiser created a variety of battery- and AC-powered supplies for their T-power microphones, such as the MZA 15 (and MZA 15-U) inline battery adapter, the MZN 5-1 and MZN 6 power supplies.



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