CRM 102-RF

  • Retractable, through-table Cardioid Condenser microphone with remote on/off switch facility
  • Black Nextel (available in Satin Nickel) 

Retractable Through Table Cardioid Condenser Boundary Layer Microphone in Black Nextel®.

  • 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


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 -37.5dB +/- 3dB @ 1 KHz (0dB = 1 V/Pa)
Impedance 200 Ohms
S/N Ratio 68dB(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®.
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 module is fitted with filters which will wliminate all GSM frequencies from 800 – 1200MHz Impedance 200 Ohms Frequency 50Hz – 18HZ Sensitivity -37.5 ± 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®.