Earthworks Ships CTB30 Boundary Microphone

Earthworks is now shipping the CTB30 boundary microphone designed for conferencing and speech applications. The CTB30 delivers  speech intelligibility and coverage coupled with a low profile appearance for conference rooms, boardrooms, classrooms, lecterns and houses of worship.

Optimized for speech, Earthworks says 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-foot (3.04-meter) 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.

Here are all the specs.

Gary Kayye

About Gary Kayye

Gary Kayye, founder of rAVe Publications, is one of the most prominent personalities in the audiovisual industry. He has been a contributor to WIRED magazine and a technical advisor and columnist for Sound & Communications magazine as well as an opinionated columnist for rAVe [Publications] since 2003. In addition to his writing and market analysis, Gary has been a product, marketing and business operations consultant to dozens of AV companies in the U.S. and overseas. Clients have included companies such as Sony, Sharp, Epson, Lutron, InFocus, Sanyo, Mitsubishi, NEC and Philips.   Gary, who has been involved with the audiovisual market for over 20 years, was the recipient of the InfoComm 2003 Educator of the Year Award and the 2007 NSCA Instructor of the Year Award. Over the years, he has donated much of his time as an active volunteer in the AV industry’s trade association and served as chairman of InfoComm’s Professional Education & Training Committee (PETC), chairman of the ICIA Design School Committee and chairman of InfoComm’s Installation School Committee. In addition, he has served on the InfoComm board of governors. He also helped grow the InfoComm Projection Shoot-Out as the premiere AV industry trade show special event serving on the committee from 1991 through 1997, and was instrumental in launching the Shoot-Out in the European market at the Photokina Expo in 1994 and 1996 as well as the Asian market at the 1995 and 1997 INFOCOMM Asia shows.   Prior to founding his own company, Gary was vice president of sales and marketing for AMX Corporation (www.amx.com), a manufacturer specializing in professional AV and residential AV control systems. Prior to AMX, Gary spent nine years at Extron Electronics (www.extron.com), rising to the position of vice president of sales and marketing. Gary earned his bachelor’s degree in journalism in 1987 from the University of North Carolina and is currently Adjunct Faculty at UNC in the School of Journalism teaching a class on how future technologies will affect the future of advertising, PR and marketing.   He is also the founder of Swim for Smiles, a non-profit that raises money for the N.C. Children’s Hospital through swimming and other fitness-related events for kids. You can contact him at gary@ravepubs.com..