Classis BM 43 B (Discontinued)

The Classis BM 43 is a small condenser boundary microphone with a half-spherical polar pattern for round table discussions, teleconferences, studio and live recording. The robust housing is of a high quality design and covered with very exclusive, dust repellent fabric. The matt, non-glare surface allows integrating the Classis BM 43 discretely into each installation. The integrated high pass filter reduces low-frequency noise from tables and other. The increase of the sound pressure at a boundary results in a higher gain, signal-to-noise ratio and comb filter effects cannot occur.

Features:

Half-spherical polar pattern
RFI-proof due Scudio‚ technology
High-quality non-glare design
Linear frequency response
Suitable for miking speech

Specifications:

Transducer type . . . . . . . . . . . . . . . . . . . Condenser (back-electret)
Operating principle. . . . . . . . . . . . . . . . . Pressure
Frequency response . . . . . . . . . . . . . . . . 40 - 20,000 Hz
Polar pattern . . . . . . . . . . . . . . . . . . . . . Half-spherical
Open circuit voltage . . . . . . . . . . . . . . . . 21 mV/Pa = -33.5 dBV
Nominal impedance . . . . . . . . . . . . . . . . < 200 ohm
Nominal output impedance . . . . . . . . . . ‚â• 1 k ohm
Max. SPL at 1 kHz. . . . . . . . . . . . . . . . . . 124 dB
Dynamic range . . . . . . . . . . . . . . . . . . . . 95 dB
Signal-to-noise ratio . . . . . . . . . . . . . . . . 65 dB [A, RMS]
Noise voltage . . . . . . . . . . . . . . . . . . . . . 9.1 µV [A, RMS] A-weighted equivalent
SPL . . . . . . . . . . . 29 dB
Voltage supply . . . . . . . . . . . . . . . . . . . . 8 - 52 V phantom power
Current consumption . . . . . . . . . . . . . . . approx. 2.3 mA
Dimensions without connector (L x W x H) . . . . . .. 86 x 61 x 21 mm
Weight with cable . . . . . . . . . . . . . . . . . 213 g [7.51 oz]