CCRM 4000 / C 303 Plenum

Plenum rated Tri-element motorized ceiling microphone

Available in North America only

Main Secondary
Plenum rated Tri-element motorized ceiling microphone for applications such as for Boardrooms, conferencing, court rooms and other venues
  • Designed to capture 360 degree pickup.
  • Patent pending No. 1109720.1
  • Control ports allow DSP connection and Link / daisy chain expansion to other CCRM 4000/C303 Retracta units.
  • Logic Hi / Lo for DSP mute detection port.
  • Main & Secondary units are Identical in construction. Two rotary 0-9 digital decimal encoders are used to set Main (00) and 01 – 99 determines Secondary designation. The factory default is set to Main (00).
  • RJ45 socket allows easy and fast connection of the audio to mixer or DSP. A 9-48 Volt phantom power is required.
  • IR remote control is supplied with the Main unit. Remote control can be used to activate the units in the absence of a DSP.
  • IR receiver sensor with integral green programme mode led and red range led (supplied with Main unit).
  • Audio cable length 2.5 Metres.
  • Inbuilt Phantom Power adaptor modules.
  • Universal mains switched mode power supply available as separate item. Operates up to 4 units.
  • Automatic safety detection for cable hang-ups
  • Ceiling bezel fitted with detection switch.
  • Up to 99 Secondary units can be daisy chained to the Main. The CCRM4000-C303 is mounted inside a modified Chief CMS491 Plenum rated storage box.
  • 3 X Cardioid Patterns, 120° from each other, covering 360°
  • Finish: Black Satin or Gloss White.

For 'Glossary of Terms' Click Here

Application Designed for superior quality voice reproduction in venues such as boardrooms,conferencing,court rooms and other such venues.
Type Tri-elementCondenser (Back Electret)
Polar Pattern 3 X Cardioid patterns, 120° from each other covering 360°
Frequency Response 50Hz – 18KHz
Sensitivity -37dB @ 1KHz (0dB 1v/Pa)
Impedance 200 Ohms
S/N Ratio 69dB (A)
Maximum Sound Pressure Level 125dB @ 1%THD
Power Requirements 9 - 48 volts phantom power
Termination C303W-RF tri-element microphone pre wired in CCRM4000 unit, output in RJ45 female connector, supplied with RJ45 female fan out to three phoenix connectors.
Finish CCRM4000 motor assembly (Satin Black), C303-RF/C303W-RF microphone and cable (Satin Black or Gloss White)
Weight 16Kg (35lbs)
Wiring Connections RJ45 for control and unmute failsafe
Architects and engineer specifications Plenum rated ceiling mounted retractable triple back electret condenser microphones designed for suspended Plenum ceiling applications. 2.5 Metres (8.20 ft) cable with pre-wired TA5F (Mini XLR) for the C303W-RF microphone, and built in Phantom Power Adaptors. Also includes modified Chief CMS491 Plenum rated storage box. The microphone is engineered in high quality brass. It requires phantom power supply 9-48 Volts. Frequency response 50 – 18 KHz, impedance 1.8 K Ohms, Max spl 125dB less than 1% THD, sensitivity -37dB @ 1 KHz (0dB = 1 V/Pa) Finish: Satin Black or Gloss White.