AES E-Library

Sandwich-Construction Loudspeaker Diaphragm with Foamed High-Polymer and Carbon Fiber

Acrylic foam is used for the core and carbon fiber for the skin material of a loudspeaker diaphragm to achieve more rigidity, lower density, easier formability, and a higher Young's modulus. Unlike a honeycomb construction, this diaphragm material is relatively easy to form into a curved cone shape. The new diaphragm is at least 300 times more resistant to bending than a paper diaphragm, while nearly equal to paper in internal loss characteristics. The importance of diaphragm rigidity is confirmed by modal analysis and tone-burst tests.

Authors: Taguchi, Sadao; Watanabe, Toshio; Takahashi, Eiichi; Takahashi, Susumu; Tanaka, Susumu
Affiliation: Sansui Electric Company, Ltd., Tokyo 168, Japan
JAES Volume 34 Issue 11 pp. 895-904; November 1986 Import into BibTeX

Click to purchase paper 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 $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD aes4)   /jrnl7888/1986/8140.pdf

Start a discussion about this paper!