Dynamic Microphone

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The two main types of Dynamic Microphones include the Moving Coil and [Ribbon Microphone]. However Ribbon microphones are often misconstrued to be their own category while often engineers refer to dynamic microphones when they should say Moving Coil.

Moving coil microphone is comprised of a diaphragm attached to an induction coil, located inside the magnetic field of a permanent magnet. When the diaphragm moves the attached coil in response to air pressure, the magnetic field creates current fluctuations in the coil. A dynamic microphone is the functional opposite of a loudspeaker.


The best-known example of a dynamic microphone is the ubiquitous Shure SM-57. Love it or hate it, it's in nearly every studio in existence, as well as the podium microphone of the United States President for the past 30 years.

Characteristics

Dynamic moving coil microphones are typically are rugged, inexpensive, and can handle high sound pressure levels, but often have a limited frequency response lacking at extreme high and low frequencies. This is not to say they are "less good" than a more precise microphone, but will simply treat the sound source differently.

Tips

Some engineers have been known to use the cone of a loudspeaker like a yamaha NS10 and to use it as a microphone to record the kick drum.