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Subminiature Omni-directional Condenser Mic.

MT830a
  • Maximum intelligibility and clean, accurate reproduction for lecturers, singers, stage and TV performers.
  • Low-profile design is ideal for applications requiring minimum visibility.
  • Includes a clothing clip and accessory windscreens.
  • MT830a is switchable for low-frequency roll-off reduces sensitivity to popping in close vocal use.
  • MT830a can be operated on battery or phantom power.

    The MT830a is a subminiature condenser microphone intended to be worn on the clothing of performers for excellent yet unobtrusive sound pickup. The wide-range capability of the microphone ensures clean, accurate reproduction with high intelligibility for lecturers, singers, stage and TV performers, as well as musical instruments. Its small size makes the microphones ideal for use in applications where minimum visibility is required.

    Includes a power module AT8531 that requires 11V to 52V DC phantom power, or a 1.5V AA battery for operation. A battery need not be in place for phantom power operation.

    An integral 80Hz high-pass filter provides easy switching from a flat frequency response to a low-end roll-off. The roll-off position reduces the pickup of low-frequency ambient noise (such as traffic, air-handling systems, etc.), room reverberation and mechanically coupled vibrations.

    Output from the power module’s XLRM-type connector is low impedance (Lo-Z) balanced. The signal appears across Pins 2 and 3; Pin 1 is ground (shield). Output phase is “Pin 2 hot” - positive acoustic pressure produces positive voltage at Pin 2. To avoid phase cancellation and poor sound, all mic cables must be wired consistently: Pin 1-to-Pin 1, etc.



    • audio technica MT830a
  • MT830a Specifications

    Element

    Fixed-charge back plate, permanently polarized condenser

    Polar Pattern

    Omnidirectional

    Frequency Response

    30 ~ 20,000 Hz

    Open Circuit Sensitivity

    -34 dB (19.9 mV) re 1V at 1 Pa

    Impedance

    200 Ω

    Maximum Input Sound Level

    131 dB SPL, 1 kHz at 1% T.H.D.

    Low Frequency Roll-Off

    80 Hz, 12 dB/octave

    Phantom Power

    11~52V DC, 3.5 mA typical

    Weight

    Microphone: 1.3 g;
    Power Module: 81.2 g

    Dimensions

    Microphone: 15.8mm X 8.5mm X 5.0mm (Long X Wide X Thick) Power Module: 83.0mm X 63.0mm X 22.0mm (High X Wide X Thick)

    Output Connector

    Integral 3-pin XLRM-type

    Cable

    1.4 m long (permanently attached to microphone), 2.5 mm diameter

    Accessories Furnished

    Clothing clip; Windscreens; protective pouch; AT8531 power module

    Download

    audio technica support 175_1_MT830.pdf - Operation Manual