C420E

Twin Mount back electret Microphone.
QUICK SPECS
Type
Back electret condenser
Frequency Response
50 Hz to 18 KHz
Sensitivity
-37dB +/- 3dB @ 1Khz (0db =1V/Pa)
Power Requirements
9 – 48 Volts

Engineered for Perfect Speech Capture

Twin Mount back electret Microphone.

  • Twin mount back electret Condenser Microphone Constructed from high quality brass.
  • Each microphone has individually adjustable angled solid shafts.
  • Phantom power required 9 – 48 Volts.
  • Inline Phantom Power Adaptor contains a switchable 10 dB pad and bass cut filter.
  • Two independent Microphones offers fail safe operation.
  • Terminating in a 5 Pin Male XLR
  • Finish: Satin Black.
  • Also available in Nextel Suede Coating finishes (Custom Orders Only)

For ‘Glossary of Terms’ Click Here

Twin mount back electret Condenser Microphone Constructed from high quality brass.

Each microphone has individually adjustable angled solid shafts.

Phantom power required 9: 48 Volts.

Inline Phantom Power Adaptor contains a switchable 10 dB pad and bass cut filter.

Technical Specifications

Length
309mm
Application
Designed for us in places of worship, conferencing, broadcasting and other places requiring twin microphone for backup / fail safe operation.
Type
Back electret condenser
Frequency Response
50 Hz to 18 KHz
Sensitivity
-37dB +/- 3dB @ 1Khz (0db =1V/Pa)
Impedance
200 Ohms
S/N Ratio
69db
Power Requirements
9 – 48 Volts
Finish
Satin Black.

Architect & Engineer Specifications

Twin mount back electret condenser microphone with a cardioid polar pattern. Constructed from high quality brass each microphone is fixed to solid shafts which can be individually adjusted 180 degrees for correct vertical angle. Phantom power required 9 – 48 Volts dc. The inline phantom power adaptor contains a switchable 10 dB pad and bass cut filter(-4dB per octave at 400 Hz to –6dB per octave at 100 Hz); 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 120db is less than 1%. Dimensions:L309mm. Finish: Satin Black.

Key Features

01

Twin mount back electret Condenser Microphone Constructed from high quality brass.

02

Each microphone has individually adjustable angled solid shafts.

03

Phantom power required 9: 48 Volts.

04

Inline Phantom Power Adaptor contains a switchable 10 dB pad and bass cut filter.

05

Two independent Microphones offers fail safe operation.

Downloads & Documentation

Line Drawing
PDF • 54.5 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

Houses of Worship

Exceptional speech intelligibility for worship services and ceremonies.

Conference Rooms

Clear voice reproduction for video conferencing and unified communications.

Broadcast & Studios

Professional-grade audio for broadcast, recording, and production environments.
YOU MAY ALSO LIKE

Related Products

Not Sure if the C420E Is Right for You?

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

Search Products