Retractable Through Table Cardioid Condenser Boundary Layer Microphone.

Black Nickel
CRM 102-RF CRM 102N-RF

Retractable Through Table Cardioid Condenser Boundary Layer Microphone.

  • Easy to install
  • Low profile at surface level
  • Unique ability to lock capsule away from sight when not in use
  • Robust brass construction
  • Cardioid polar pattern
  • Built in RF filter
  • Balanced output
  • Inbuilt Phantom Power Module
  • Supplied with 2m (6.6ft) 2 core + screen cable
  • Finish: Black Nextel® or Satin Nickel.
  • Also available in Nextel Suede Coating finishes (Custom Orders Only)

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Application Designed for superior quality voice reproduction required in venues such as boardrooms,conferencing,court rooms and other such venues.
Type Condenser (back electret)
Polar Pattern Cardioid
Frequency Response 50Hz - 18 KHz
Sensitivity -37dB +/- 3dB @ 1 KHz (0dB = 1 V/Pa)
Impedance 200 Ohms
S/N Ratio 69dB(A)
Maximum Sound Pressure Level 120db at 1KHz 1% T.H.D.
Power Requirements 9 - 48 volts phantom power
Termination Open ended
Wiring connections Black 2 core + screen Red Conductor Phase + White Conductor Phase - Screen Ground Grey 2 core + screen/shield used for identification switch no polarity or power required screen not used.
Finish Black Nextel® or Satin Nickel.
Dimensions Hole cut out diameter 30mm (1.18") Surface height 3mm (0.2"), extended height 15mm (0.6") surface diameter 36mm (1.4").
Weight 384grms (13.55 oz)
Architects and engineer specifications The Microphone is a low profile boundary layer through table design with a cardioid polar pattern. The Microphone is push activated for both UP and Down positions leaving only 3mm (0.12") protruding above the surface when in the retracted position. The Microphone is engineered in high quality brass for long life and smooth action. The Microphone has an integral eletronic module which requires a 9 - 48 volt phantom power supply. The Phantom Power Adaptor includes filters which will eliminate all cellular frequencies (GSM/2G, 3G, 4G & 5G). Impedance 200 Ohms Frequency 50Hz - 18HZ Sensitivity -37 ± 3dB @ 1 KHz (0db = 1V/Pa) THD 120dB is no greater than 1% The Microphone connections: Audio a 2 metre (6.6ft) open ended 2 core and screen cable. The switch is a gray 2 core and screen the screen is not used. The switch is not designed as an on/off audio switch and is only for use via a DSP system for muting when the microphone is in the retracted position. Finish: Black Nextel® or Satin Nickel.

Not recommended. The CRM102-RF and the rest of the CRM line are fitted with a magnetic reed switch designed to be used for remote switching at the beginning and end of each session when the microphones are no longer in use. The magnetic reed switch in the CRM line was not designed to be used for privacy muting. If used as a privacy mute, the far end would hear the mechanics of the microphone pushing in before the magnetic reed switch would have time to signal the DSP to mute. Privacy muting can be achieved by using a separate TS001 button with your DSP of choice to mute electronically.