3-D Loud-Speaker Systems for Automotive Use 850162
In order to reproduce heavy bass with a small diameter loudspeaker for automotive use similar to the intensity and low distortion of a home-use Hi-Fi system, a large volume velocity must be obtained. This is done by lowering the minimum resonant frequency of system and by linearly expanding the amplitude range of diaphragm.
We have developed a 3-D woofer system using a centering suspension that consists of four tubes of square cross-section continuously laid in the circumferential direction and a cone suspension that has V-shaped pleats in both of the circumferential and diameter directions for the vibration system. The results are good acoustic characteristics in an automotive cabin that are low in distortion with high output in the low frequency range up to 100Hz.
Citation: Hasegawa, M., Takewa, H., Kimura, Y., and Okada, A., "3-D Loud-Speaker Systems for Automotive Use," SAE Technical Paper 850162, 1985, https://doi.org/10.4271/850162. Download Citation
Author(s):
M. Hasegawa, H. Takewa, Y. Kimura, A. Okada
Affiliated:
Acoustic Research Laboratory, Matsushita Electric Industrial Co., Ltd., Acoustic Products Div., Matsushita Electronic Components Co., Ltd.
Pages: 12
Event:
SAE International Congress and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Automobile Audio Systems-Worldwide Developments-P-157, SAE 1985 Transactions-V94-85
Related Topics:
Acoustics
Vibration
SAE MOBILUS
Subscribers can view annotate, and download all of SAE's content.
Learn More »
