The CM-01 ceiling microphone utilizes a special pressure sensitive, tensionless low-mass element enhanced with an integrated FET low noise amplifier.
MacMall Part #: 8931060
Manufacturer Part #: CM-01
The CM-01 ceiling microphone utilizes a special pressure sensitive, tensionless low-mass element enhanced with an integrated FET low noise amplifier. These characteristics result in ultra smooth frequency response providing excellent feedback stability for voice reinforcement and teleconferencing applications. The high temperature stability assures exceptional system performance in fixed gain situations. In an average acoustical environment this microphone will have a pickup range of 10' - 12' radius.
Group teleconferencing for: Boardrooms Classrooms/Training rooms Focus groups/Observation rooms Ideal for rooms with perimeter seating (no need to walk up to table to be heard) Allows furniture to be rearranged with no compromise to the audio system Provides even pick up for the maximum number of participants with the minimum number of microphones Provides clean clutter free environment - no visible cables Virtually invisible - flush mounted in the ceiling, visible portion smaller than a dime Minimizes unwanted table noise such as paper shuffling, pen clicking and laptop key strokes Participants can turn their backs to the table, walk around and still be heard evenly
Element: Electret Condenser Frequency Range: 10–20,000 Hz Phantom Voltage: 2–50 Volts DC Acoustical Mode: Boundary Effect Pressure Transducer Temperature Stability: +/- 0.02 dB per degree F maximum Operating Current: 50 µA maximum Impedance: 200 Ohms nominal, balanced Output Level ref 1mW/10dynes/cm2: -57 dBm (-51 dBm when mounted) Equivalent Noise level A weighted: 28 dB SPL (-22 dB SPL when mounted) Equivalent Vibration Sensitivity: 70db (1 KHz SPL equivalent of 1G) Recommended Room Conditions: Reverberation Time: < 0.6 seconds Noise Level: < 48dBa
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