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.


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    Title :

    3-D Loud-Speaker Systems for Automotive Use


    Additional title:

    Sae Technical Papers


    Contributors:
    Okada, A. (author) / Takewa, H. (author) / Hasegawa, M. (author) / Kimura, Y. (author)

    Conference:

    SAE International Congress and Exposition ; 1985



    Publication date :

    1985-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    3-D Loud-Speaker Systems for Automotive Use

    Hasegawa,M. / Takewa,H. / Kimura,Y. et al. | Automotive engineering | 1985


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