Dynamic Mics

Dynamic Mics

Dynamic Microphones

Patti Smith singing into a Shure SM58 (dynamic cardioid type) microphone

The dynamic microphone (also known as the moving-coil microphone) works via electromagnetic induction. They are robust, relatively inexpensive and resistant to moisture. This, coupled with their potentially high gain before feedback, makes them ideal for on-stage use.

Dynamic microphones use the same dynamic principle as in a loudspeaker, only reversed. A small movable induction coil, positioned in the magnetic field of a permanent magnet, is attached to the diaphragm. When sound enters through the windscreen of the microphone, the sound wave moves the diaphragm. When the diaphragm vibrates, the coil moves in the magnetic field, producing a varying current in the coil through electromagnetic induction. A single dynamic membrane does not respond linearly to all audio frequencies. For this reason, some microphones utilize multiple membranes for the different parts of the audio spectrum and then combine the resulting signals. Combining the multiple signals correctly is difficult; designs that do this are rare and tend to be expensive. On the other hand, there are several designs that are more specifically aimed towards isolated parts of the audio spectrum. The AKG D 112, for example, is designed for bass response rather than treble.[23] In audio engineering several kinds of microphones are often used at the same time to get the best results.

  • Shure SM57-LC Cardioid Dynamic Instrument Microphone

    Shure SM57-LC Cardioid Dynamic Instrument Microphone

    Shure

    Murphy's Price: $99.00
    The legendary Shure SM57 is exceptional for musical instrument pickup and vocals. With its bright, clean sound and contoured frequency response, the SM57 is ideal for live sound reinforcement and recording.The SM57 has an extremely effective cardioid...
    Murphy's Price: $99.00
    Quick view
  • Shure SM58-LC Cardioid Dynamic Vocal Microphone

    Shure SM58-LC Cardioid Dynamic Vocal Microphone

    Shure

    Retail: $124.00
    Murphy's Price: $99.00
    Tuned to accentuate the warmth and clarity of lead and back-up vocals, the SM58 is a legendary live vocal microphone known for its rugged reliability on tour. The legendary Shure SM58 vocal microphone is designed for professional vocal use in live...
    Retail: $124.00
    Murphy's Price: $99.00
    Quick view