Earthworks Now Shipping CTB30 Boundary Microphone

Optimized for speech, the CTB30 features a flat frequency response from 60Hz to 30kHz and an incredibly fast diaphragm settling time.

Earthworks Now Shipping CTB30 Boundary Microphone
The CTB30 delivers exceptional speech intelligibility and coverage coupled with a low profile appearance for conference rooms, boardrooms, classrooms, lecterns, and houses of worship.
Earthworks Now Shipping CTB30 Boundary Microphone
The CTB30 delivers exceptional speech intelligibility and coverage coupled with a low profile appearance for conference rooms, boardrooms, classrooms, lecterns, and houses of worship.

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Milford, N.H. – Earthworks is now shipping the CTB30 boundary microphone designed for conferencing and speech applications. Featuring revolutionary audio and mechanical design innovations, the CTB30 delivers exceptional speech intelligibility and coverage coupled with a low profile appearance for conference rooms, boardrooms, classrooms, lecterns, and houses of worship.

Optimized for speech, the CTB30 features a flat frequency response from 60Hz to 30kHz and an incredibly fast diaphragm settling time that allows more subtle details of the human voice to be reproduced. Its True Semisphere™ polar response provides an omni semisphere of coverage and delivers the same high intelligibility of each orator speaking around the microphone without loss of high frequencies. The wide and even coverage across the microphone’s pickup pattern means that just one CTB30 can provide excellent coverage for a 12 foot conference table that seats up to 12 people.

Incorporated into the microphone’s design is a specially engineered filter to significantly minimize the unwanted noises of table thumping, paper shuffling and HVAC. The CTB30 also includes RF shielding to prevent interference from cell phones and other electronic devices.

Measuring just 4.1 inches in diameter, the CTB30 provides a very low profile miking solution and is available in black, white, silver or Nextel® Dark Black finishes.

The CTB30 comes with a 10 ft (3.04m) low profile cable with XLR-3M attached, and is designed to exit from the side or bottom of the microphone. The XLR can be removed, allowing the cable to run through a small hole in the table surface for a permanent installation.

Two 6-32 screw holes and a keyhole are found on the bottom of the microphone for secure mounting, allowing a more permanent installation option if required.




Latest Resource

Worship Facilities Magazine, March-April 2018
The March-April 2018 issue of Worship Facilities Magazine offers articles about how to prepare, prevent and respond to church violence, a look into what church management software can do for your church community, and a piece on how a once popular nightclub venue was transitioned to become Shoreline Church's new home.


Article Topics

News · Technology · Audio · Coverage · Diaphragm · Earthworks · Frequencies · Intelligibility · Interference · All Topics

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