CRM 202-RF

The condenser microphone is of a very low profile boundary layer through table design, with a cardioid polar pattern. 2 Independently powered microphone capsules are inbuilt into the housing.
QUICK SPECS
Type
Condenser (back electret)
Polar Pattern
Cardioid Frequency Response 50Hz - 18 KHz
Sensitivity
-37dB +/- 3dB @ 1 KHz (0dB = 1 V/Pa)
Termination
Open ended Wiring connections Black 2 core + screen Red Conductor Phase + White Conductor Phase -

Engineered for Perfect Speech Capture

The condenser microphone is of a very low profile boundary layer through table design, with a cardioid polar pattern. 2 Independently powered microphone capsules are inbuilt into the housing. The microphone has a unique ability to retract and lock the capsule module away from sight leaving only 3 mm (0.12”) protruding on top of the table. The microphone is of a robust brass construction and includes 2 metres (6.6ft) of cable.

Included is an integral phantom power module which requires 9 to 48 volts. The phantom power module also includes filters which will eliminate all GSM frequencies from 800-1200 MHz Impedance 200 Ohms; Frequency response 50 Hz to 18 KHz; Sensitivity -37dB ± 3dB @ 1KHz (0dB =1V/Pa); Total Harmonic Distortion (THD) at an operating level of 125dB is no greater than 1%. Finish: Black Nextel® or Satin Nickel.

Retractable Through-Table Cardioid

Boundary layer condenser Microphone with

2 independent encapsulations.

Easy to install.

Technical Specifications

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 125db at 1KHz 1% T.H.D.
Termination
Open ended Wiring connections Black 2 core + screen Red Conductor Phase + White Conductor Phase -
Finish
Black Nextel® or Satin Nickel.
Dimensions
Hole cut out diameter 58mm (2.25") Surface height 3mm (0.2") extended
height
15mm (0.6"), surface diameter
Weight
420g (13.5 0z)

Key Features

01

Retractable Through-Table Cardioid

02

Boundary layer condenser Microphone with

03

2 independent encapsulations.

04

Easy to install.

05

Low profile at surface level.

Downloads & Documentation

Product Data Sheet
PDF • 282.3 KB
Installation Guide
PDF • 287.5 KB
Line Drawing
PDF • 148.0 KB

Frequently asked questions

What industries does Clockaudio serve?
Clockaudio solutions are used across corporate offices, education, government, healthcare, broadcast, and commercial AV environments where reliable, high-quality audio is essential.

Yes — Clockaudio microphones and audio systems integrate seamlessly with major unified communications platforms including Microsoft Teams Rooms, Zoom Rooms, Cisco Webex, and Google Meet. Our boundary, gooseneck, and ceiling microphones deliver the clarity and reliability required for professional video conferencing installations worldwide.

Yes. Our engineering team provides system design consultations for integrators and end-users, helping specify the right combination of microphones, processors, and accessories for your space. Our technical support team is available throughout the installation and commissioning process.

Clockaudio has been designing and manufacturing professional audio products in the United Kingdom for over 40 years. Our UK facility handles R&D, precision assembly, and quality control — ensuring every product meets the standards expected by AV professionals worldwide.

The right microphone depends on your room size, acoustic environment, and application. Boundary microphones suit tabletop conferencing; goosenecks are ideal for fixed lectern or dais positions; ceiling-mounted mics offer clean aesthetics for modern meeting rooms. Contact our team or use our Search Facility to find a certified integrator near you for a tailored recommendation.

IDEAL FOR

Application Areas

Courtrooms & Legal

RF-immune design for reliable audio in sensitive legal proceedings.

Government & Municipal

Reliable audio systems for council chambers and government facilities.

Corporate AV

Professional audio solutions for corporate environments and facilities.
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