Classis BM 42 B

BEYERDYNAMIC Article no: 723789

Price:
$361

Description

The Classis BM 42 is a small condenser boundary microphone with a semi-cardioid polar pattern. The robust housing is of a high quality 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-before feedback 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.

Features:

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

Specifications:

Transducer type . . . . . . . . . . . . . . . . . . . Condenser (back-electret)
Operating principle. . . . . . . . . . . . . . . . . Pressure gradient F
Frequency response . . . . . . . . . . . . . . . . 55 - 20,000 Hz
Polar pattern . . . . . . . . . . . . . . . . . . . . . Semi-cardioid
Open circuit voltage . . . . . . . . . . . . . . . . 13.3 mV/Pa = -37.5 dBV
Nominal impedance . . . . . . . . . . . . . . . . < 200 ohm
Nominal output impedance . . . . . . . . . . 1 k ohm
Max. SPL at 1 kHz. . . . . . . . . . . . . . . . . . 114.2 dB
Dynamic range . . . . . . . . . . . . . . . . . . . . 84 dB
Signal-to-noise ratio . . . . . . . . . . . . . . . . 63.9 dB [A, RMS]
Noise voltage . . . . . . . . . . . . . . . . . . . . . 8.4 µV [A, RMS] A-weighted equivalent
SPL . . . . . . . . . . . 30.1 dB
Phantom supply . . . . . . . . . . . . . . . . . . . 8 - 52 V
Current consumption . . . . . . . . . . . . . . . approx. 2.1 mA
Dimensions without connector (L x W x H). . . .† . 86 x 61 x 21 mm
Weight with cable . . . . . . . . . . . . . . . . . 213 g [7.51 oz]

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