Classis BM 52

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

The Classis BM 52 is a very versatile condenser boundary microphone with many different useful functions. Depending on the application, you can choose between the operating modes ON/OFF, Push-To-Talk (PTT) and Push-To-Mute (PTM). In order to suppress low frequency noise, the frequency response can be tailored for use with a two-stage bass roll off filter. The Classis BM 52 is operated with a silent membrane key with braille inscription. An LED indicates the ready-to-speak status. The robust housing with a high-quality design is covered with a very exclusive, dust repellent fabric. Due to its matt, non-glare surface, the Classis BM 52 can discretely be integrated into each installation. It has all possibilities of an intelligent desktop microphone unit. It can be used anywhere, where little space is available, but a high functionality is required. It is ideal for round table discussions, tele/video conferences or distance learning. The increase of the sound pressure at a boundary results in a higher gain, signal-to-noise ratio and comb filter effects cannot occur.


  • Semi-cardioid polar pattern
  • RFI-proof due to Scudio™ technology
  • ON/OFF, Push-To-Talk and Push-To-Mute function
  • Silent membrane key with braille inscription
  • High-quality non-glare design
  • Linear frequency response with high bandwidth
  • LED indicator
  • Switchable bass roll-off filter in two stages
  • High gain-before-feedback


Architect's Specifications (1.95 MB)


MAN_Classis-BM52_DE-EN-FR_A2.pdf (308.34 KB)

Planning Aids

Classis-BM52-PZ-A1.DWG (536.87 KB)

Planning Aids

Classis-BM52-PZ-A1.DXF (966.47 KB)

Planning Aids

Classis-BM52-PZ-A1.PDF (99.45 KB)

EU Declaration of Conformity

DEC_BM5x_EN_EU.pdf (56.48 KB)

Spec Sheet

DAT_Classis-BM52_EN_A2.pdf (914.52 KB)

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