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.

Are Clockaudio products compatible with major conferencing platforms?

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.

Do you offer support for system design and installation?

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.

Where are Clockaudio products manufactured?

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.

How can I choose the right microphone for my space?

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.

CRM 203S-RF RGB

Triple element boundary layer microphone with half cardioid polar pattern.

QUICK SPECS

Type

Condenser (Back Electret)

Polar Pattern

Cardioid

Frequency Response

50Hz – 18KHz

Sensitivity

-37 +/- 3dB @ 1KHz (0dB 1v/Pa)

Engineered for Perfect Speech Capture

Triple element boundary layer microphone with half cardioid polar pattern.

Cardioid Polar Pattern.
Patent pending No. 1109720.1
Easy to install
Low profile at surface level
RF Friendly’ technology offering immunity from GSM radio frequency interference.
Unique ability to lock capsules away from sight when not in use
Each capsule has a half cardioid pattern that are 90° from each other, and can capture two participants on each side and at the end of the table.
Touch sensitive switch with RGB.
Balanced output.
Inbuilt Phantom Power module.
Supplied with 2m (6.6ft) 2 core + Screen cables.
Finish: Black Nextel® or Satin Nickel.
Also available in Nextel Suede Coating finishes (Custom Orders Only)

For ‘Glossary of Terms’ Click Here

Cardioid Polar Pattern.

Patent pending No. 1109720.1

Easy to install

Low profile at surface level

Technical Specifications

Application

Designed for superior quality voice reproduction in venues such as boardrooms,conferencing,court rooms and other such venues.

Type

Condenser (Back Electret)

Polar Pattern

Cardioid

Frequency Response

50Hz – 18KHz

Sensitivity

-37 +/- 3dB @ 1KHz (0dB 1v/Pa)

Impedance

200 Ohms

S/N Ratio

69dBA

Power Requirements

9 - 48 volts Phantom Power

Termination

Audio: Open ended. Touch switch CAT 5 cable terminated via TS-C1 with RJ45

Supplied Accessories

TS-C1

Finish

Black Nextel® or Satin Nickel

Dimensions

Microphone length below table: 112mm/4.4 ins, Above table when retracted: 2mm (0.08ins), when deployed: 15mm Body diameter: 56.5mm (2.2 ins).

Weight

420gms.

Wiring Connections

1 X White 2 core + screen and 2 X Black 2 core + screen Red Conductor Phase + White Conductor Phase - Screen Ground Grey 2 core + screen(not used) Used for identification switch no polarity or power required.

Key Features

Cardioid Polar Pattern.

Patent pending No. 1109720.1

Easy to install

Low profile at surface level

RF Friendly' technology offering immunity from GSM radio frequency interference.

Downloads & Documentation

Installation Guide

PDF • 556.3 KB

Installation Guide

PDF • 294.4 KB

Installation Guide

PDF • 296.5 KB

Technical Note

PDF • 1.4 MB

Technical Note

PDF • 979.5 KB

Frequently asked questions

What is the frequency response?

The frequency response is 50Hz – 18KHz

What power does the CRM 203S-RF RGB require?

Power requirements: 9 - 48 volts Phantom Power

Where can I find the full technical documentation?

Use the Data sheet button on this page for the full specification PDF, and check the Downloads tab for manuals and other documents.

IDEAL FOR

Application Areas

Boardrooms & Meeting Rooms

Professional audio capture for every participant with discreet integration.

Conference Rooms

Clear voice reproduction for video conferencing and unified communications.

Courtrooms & Legal

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

Not Sure if the CRM 203S-RF RGB Is Right for You?

Our audio engineers can help you specify the perfect microphone for your installation. Get in touch for expert guidance.

CRM 203S-RF RGB

QUICK SPECS

Engineered for Perfect Speech Capture

Cardioid Polar Pattern.

Patent pending No. 1109720.1

Easy to install

Low profile at surface level

Technical Specifications

Key Features

Cardioid Polar Pattern.

Patent pending No. 1109720.1

Easy to install

Low profile at surface level

RF Friendly' technology offering immunity from GSM radio frequency interference.

Downloads & Documentation

Frequently asked questions

IDEAL FOR

Application Areas

Boardrooms & Meeting Rooms

Conference Rooms

Courtrooms & Legal

YOU MAY ALSO LIKE

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CW 8001

PPA-RF

C003E-RF

HW 1200

C 1020-USB

C015E-RF

Not Sure if the CRM 203S-RF RGB Is Right for You?

CRM 203S-RF RGB

QUICK SPECS

Engineered for Perfect Speech Capture

Cardioid Polar Pattern.

Patent pending No. 1109720.1

Easy to install

Low profile at surface level

Technical Specifications

Key Features

Cardioid Polar Pattern.

Patent pending No. 1109720.1

Easy to install

Low profile at surface level

RF Friendly' technology offering immunity from GSM radio frequency interference.

Downloads & Documentation

Frequently asked questions

IDEAL FOR

Application Areas

Boardrooms & Meeting Rooms

Conference Rooms

Courtrooms & Legal

YOU MAY ALSO LIKE

Related Products

CW 8001

PPA-RF

C003E-RF

HW 1200

C 1020-USB

C015E-RF

Not Sure if the CRM 203S-RF RGB Is Right for You?

Search Products