A high fidelity small-sized loudspeaker

Author

Satoh, Kazue ; Takewa, Hiroyuki ; Iwasa, M. ; Kikkawa, Tohru

Author_Institution

Matsushita Electr. Ind. Co. Ltd., Osaka, Japan

Volume

43

Issue

3

fYear

1997

fDate

8/1/1997 12:00:00 AM

Firstpage

972

Lastpage

979

Abstract

Although bass sound reproduction through a small-sized loudspeaker requires large diaphragm displacement, the conventional supporting system cannot vibrate at an amplitude large enough for high-quality bass sound reproduction. A new supporting system is proposed which solves the problem of the conventional supporting system and focuses on the high excursion supporting system in terms of structure and displacement mechanism, in comparison with the conventional system. Using the supporting system with improved amplitude linearity and a driving system with a high force factor, a small-sized loudspeaker 8 cm in diameter has been developed. Despite the small diameter, this loudspeaker provides a large diaphragm displacement of ±8 mm, and therefore has superior bass sound reproduction characteristics

Keywords

Hi-Fi equipment; loudspeakers; sound reproduction; 8 cm; amplitude; amplitude linearity; bass sound reproduction; diaphragm displacement; driving system; high excursion supporting system; high fidelity small-sized loudspeaker; DVD; Electronic components; Force measurement; Linearity; Loudspeakers; Magnetic levitation; Microcomputers; Nonlinear equations; Resonant frequency; Vibrations;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.628776

Filename

628776