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Beyerdynamic BM 42 BC Half-Cardioid XLR Boundary Mic

Product Code: 410420

Half-cardioid boundary condenser mic with built-in preamp (3m XLR cable)

£159.00 (INC VAT)
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  • Description
  • Specifications
  • Reviews

Boundary Microphone (half-cardioid) with 3 m (9.8 ft) cable with 3pin XLR plug, black

The Classis BM 42 is a small condenser boundary microphone with a semi-cardioid polar pattern. The robust housing is of a highquality design and covered with a very exclusive, dust repellent fabric. Due to the linear frequency response the microphone can be used for a number of applications, for which a microphone mounted on a stand cannot be used. The matt, non-glare surface allows integrating the Classis BM 42 discretely into each installation placing the microphone on conference tables, lecterns, round tables or on altars. It also can be used on theatre stages or for live recordings. The integrated high pass filter reduces low-frequency noise from tables and other.
The principle of a directional boundary microphone has several advantages:

  • The semi-cardioid polar pattern of the Classis BM 42 provides in contrast to standard boundary microphones a better gain-beforefeedback and reduces ambient noise.
  • The increase of the sound pressure at a boundary results in a higher gain, signal-to-noise ratio and comb filter effects cannot occur.

The Classis BM 42 is available in matt black or white.


  • Semi-cardioid
  • RFI-proof due Scudio™ technology
  • High-quality non-glare design
  • Linear frequency response
  • High gain before feedback
  • Reduced diffuse room noise
  • Suitable for miking speech
Microphone Response: 60 - 20,000 Hz
Microphone Impedance: 180 Ω
Microphone Maximum SPL: 124 dB
Microphone Signal-to-Noise: 61 dB
Microphone Self Noise: 25 dB
Microphone Powering: 8 - 52 V phantom power
Physical Height: 86 x 61 x 31 mm
Physical Weight: 240 g
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