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Intelligibility around the boundary

Intelligibility around the boundary

Intelligibility around the boundary

Earthworks has designed its CTB30 boundary microphone with a focus on speech intelligibility and coverage, incorporating a low-profile aesthetic appearance that makes it suited to conference rooms, boardrooms, classrooms, lecterns and houses of worship. It offers a flat frequency response from 60Hz to 30kHz and has a reportedly fast diaphragm settling time, which the manufacturer states ‘allows more subtle details of the human voice to be reproduced’.

The CTB30 utilises the manufacturer’s True Semisphere polar response technology, providing what is described by Earthworks as ‘omni semisphere coverage’, essentially delivering the same level of intelligibility for speakers located around the microphone without the loss of high frequency. The pick-up pattern is said to be capable of covering a conference table seating 12 people.

At 4.1-inches in diameter and available in black, white, silver or Nextel dark black to blend with myriad décor, the microphone includes RF shielding and a specially engineered filter to minimise interference from ambient noise. It comes bundled with a 3m cable with XLR-3M that can be attached beneath or to the side of the CTB30. A pair of 6-32 screw holes and a keyhole are located on the base of the unit for secure mounting during permanent installations.

earthworksaudio.com


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