Classis BM 52

BEYERDYNAMIC Article no: 729442

Price:
$658

Description

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.

Features:

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

Specifications:

Transducer type . . . . . . . . . . . . . . . . Condenser (back electret)
Operating principle. . . . . . . . . . . . . . Pressure gradient
Frequency response . . . . . . . . . . . . . 45 - 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 . . . . . . . . . . . . . 63.8 dB dBA, RMS
Noise voltage . . . . . . . . . . . . . . . . . . 8.4 µV [A, RMS] A-weighted equivalent
SPL . . . . . . . . 30.2 dB [A]
Power supply . . . . . . . . . . . . . . . . . . Phantom supply
P48 (+48 VDC ¬±4 VDC, 6.8 k ohm ±20%)
P24 (+24 VDC ¬±4 VDC, 1.2 k ohm ±20%)
P12 (+12 VDC ¬±4 VDC, 680 ohm ±20%)
Current consumption . . . . . . . . . . . . approx. 5.6 mA
Dimensions without connector (L x W x H) . . . . . . . . . . . . 105 x 76 x 25 mm
Weight without cable. . . . . . . . . . . . 147 g [5.19 oz]
Weight with cable . . . . . . . . . . . . . . 292 g [10.30 oz]

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