Bob Orban, Phillip Zeni Appointed to CRL Board of Directors.

Business and Technology Editors

TEMPE, Ariz.--(BUSINESS WIRE)--June 27, 2000

Circuit Research Labs, Inc. (CRL) (OTC/BB:CRLI) today announced the appointment of Bob Orban and Phillip T. Zeni, Sr., to its Board of Directors.

Bob Orban is the founder and chief engineer of Orban, the leader in digital audio processing for radio, which CRL recently acquired from Harman International Industries, Inc. In 1975, Bob Orban introduced the company's standard-setting OPTIMOD line of audio processors, including the OPTIMOD-FM processors that have become the most widely used FM processors in the world. He is a holder of 25 patents and is widely published. In 1995, he received the National Association of Broadcasters (NAB) Radio Engineering Achievement Award.

Commenting on Orban's appointment, C. Jayson "Jay" Brentlinger, President, CEO, and Chairman of CRL, said, "Having Bob Orban on the Board of CRL marks a return of his direct involvement managing the company he founded. He is widely regarded as the most respected authority on audio processing in the world and it's an honor and privilege to work with such a broadcasting innovator."

Zeni is a highly successful publisher, businessman, Internet pioneer and author. He currently serves as President of magazine publisher Transcontinental Publishing, Inc., as Executive Vice President of Palmieri USA, an importer of construction equipment, and Managing Director of PhysicianNet.com. He had earlier served as managing partner of a Dallas-based group of broadcasting stations and Director of Business Development for NBC Radio and Westinghouse-Group W Broadcasting in Chicago. Zeni's other broadcasting experience includes a stint as Vice President of Multimedia Communications.

Commented Brentlinger: "Phil Zeni brings a level of professionalism to CRL that's difficult to find. I first met him 20 years ago when he was with Multimedia Communications and he hired me as a programming assistant/DJ/engineer. We've had a long-term business relationship that has stood the test of time.

"We couldn't be more pleased to add both these fine gentlemen on the CRL/Orban team," concluded Brentlinger.

CRL produces high-quality electronic audio processing, transmission encoding, and noise reduction equipment for the radio, television and professional audio markets. Orban is the world leader in the design and manufacture of on-air audio processing for broadcasting, DAB and webcasting. Orban also manufactures the acclaimed Audicy digital audio workstation.

The combined CRL/Orban operation is estimated to account for approximately 70% of the world market for audio processing for radio, TV and the Internet.

For more information on CRL and Orban products, contact Teresa Zieminski-Myers at [phone]; fax: [phone]; e-mail: [e-mail]. Information is also available at web sites: www.crlsystems.com and www.orban.com.