A new baffle shape can be used tosignificantly improve dome speaker performance. Conventionally, a dome speaker is mounted on a flat baffle, such that the sound waves radiating from the diaphragm are subject to reflection, interference and diffraction, resulting in irregular response characteristics. Noting that a dome shaped diaphragm's wavefront is nearly spherical, we decided to use a horn to spread the wavefront without distorting it. With this baffle it is theoretically possible to obtain the equivalent of a pulsating sphere at the opening. In theory, there would be no problems of reflection, interference or diffraction. Using an experimental baffle, we were able to confirm our hypothesis. We were also able to make further improvements in directional and imaging characteristics. Applying this new baffle to a dome speaker we found that it did indeed ameliorate.

Authors: Hayakawa, J.; Iwakura, S.; Yamazaki, K.; Matsuoka, S.
Affiliation: Kenwood Corporation, Tokyo, Japan
AES Convention: 82 (March 1987) Paper Number: 2450
Publication Date: March 1, 1987 Import into BibTeX
Subject: Loudspeakers
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=4979

Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD aes11)   /pp8690/pp8703/2547.pdf

Start a discussion about this paper!