Beyerdynamic Classis BM 34 W Boundary Microphone (Half-Cardioid) with 3-Pin XLR Connector - White


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Dale #:BEYE-489379

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  • The Classis BM 32 / 33 / 34 condenser boundary microphones have been designed for flush mounting into tabletops or ceilings. The microphones have been designed for applications such as tele/videoconferencing, recording or amplification of round table discussions and wherever the microphone needs to be as unobtrusive as possible.

    The Classis BM 32 has a half-cardioid polar pattern, which increases the gain-before-feedback and decreases the amount of diffuse ambience.

    The high sensitivity guarantees a constant output level even from long distance sources. Elastic bearing rings achieve mechanical isolation from the mounting surface and therefore offer effective sound isolation of the microphone.


    • Half-cardioid polar pattern
    • Flat, wide range frequency response
    • High-quality reproduction of speech
    • Unobtrusive design
    • Ceiling or tabletop mounting
    • Fast and easy installation
  • Transducer typeCondenser
    Frequency response150 - 18,000 HZ
    Polar patternHalf-cardioid
    Open circuit voltage at 1 kHz (0 dB = 1 V/Pa)19 mV/Pa = -35 dBV
    Nominal impedance< 200 Ohms
    Load impedance≥ 1 k Ohms
    S/N ratio rel. to 1 Pa60 dB [A]
    Noise voltage 
    Max. sound pressure level 
    Equivalent SPL26 dB
    Phantom supply8 - 52 V
    Current consumption3.4 mA
    Connection3-pin XLR
    Weight (with nut and bearing rings)approx. 85 g [0.19 lbs]
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