Principles And Workings Of The Bose Radio

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Loudspeakers are fundamental to maintaining the fidelity of sound in radios, TV, and theater, and aficionados have debated the reproduction quality of different types of loudspeakers and their associated electronics for decades. The goal of the early loudspeakers was to modify and suppress acoustic radiation from the rear of the speaker-driver. Further work on such speakers concentrated on materials that could suppress selective radiation from the rear diaphragm. However, in 1984, a class of loudspeakers was introduced by Bose, designated "acoustic wave speakers", which are more generically called transmission line (TL) speakers. Rather than suppressing the acoustic energy from the rear of the driver, a means was engineered to use standing waves to constructively sum radiation from both the front and the rear of the driver. This allowed exceptional bass response in a small volume. The TL speaker's science and operation in the Bose radio context will be described. Analogies between antennas and the acoustic wave system will be used to help frame the analysis in electrical engineering terminology.
Co-sponsored by: Antique Wireless Association
Speaker(s): Ram Dhurjaty,
For all vTools registrants: Please check in at the registration desk when you arrive and indicate that you registered for Wednesday through the IEEE registration site. They will give you a name tag.
9:15 am-10:30 am — Principles And Workings Of The Bose Radio, by Ram Dhurjaty
Other Wednesday Talks and Demonstrations Available to Registrant Attendees:
10:45 am – 12:00 pm — Audio Forum, by Dave Minchellla & Bill Tomkiewicz
1:00 pm – 2:15 pm — Laser Communication Relay Demonstration (LCRD), by Jim Porter, NASA Ambassador
2:30 pm – 3:45 pm — Radio Club of America Helps Invent Radio (focusing on the 1920s) by Dave Bart & Felicia Dreuzer
Other activities and other days are only available to attendees who register for the entire AWA Conference. (see (
Please Note that if you register for the entire AWA conference, this talk is included, so there is no need to register for it separately on this site.
Special instructions to those who register for the entire conference, attend the talk, and want a PDH credit: Please send an email to Mark Schrader at [email protected] saying that you registered for the entire conference and would like a PDH certificate for the Bose radio talk.
RIT Inn & Conference Center, 5257 West Henrietta Road, Henrietta , New York, United States, 14467

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