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A woofer system for an automotive audio system is provided with a protective cover extending over a section of a vehicle panel which both forms part of a vehicle body and serves as a speaker diaphragm producing acoustic vibrations at audio frequencies. The cover is in a spaced-apart relationship wit

A woofer system for an automotive audio system is provided with a protective cover extending over a section of a vehicle panel which both forms part of a vehicle body and serves as a speaker diaphragm producing acoustic vibrations at audio frequencies. The cover is in a spaced-apart relationship with said section so as not to interfere with oscillation of the section of the vehicle panel while it is oscillating at audio frequencies. The cover has a support extending toward the vehicle panel and surrounding the section. The support is formed with at least one opening for transmitting acoustic vibrations produced by oscillation of the section of the vehicle panel.

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A woofer for an automotive audi system comprising: a vehicle panel which forms part of a vehicle body and which is sufficiently flexible to oscillate at audio frequencies, said vehicle panel including a section adapted to oscillate t produce audio sound; a driver housing fixed to said section; a dri

A woofer for an automotive audi system comprising: a vehicle panel which forms part of a vehicle body and which is sufficiently flexible to oscillate at audio frequencies, said vehicle panel including a section adapted to oscillate t produce audio sound; a driver housing fixed to said section; a driver unit resiliently suspended within said housing, associated with an audio player for receiving an audio signal produced by said audio player, and fixed to said section of said vehicle panel to drive said section to oscillate at audio frequencies for producing audio sound, said driver unit comprising a support element secured to said vehicle panel, a coil wrapped around said support element, and a driver assembly having a permanent magnet, positioned adjacent said coil for causing oscillation of said support element; and a protective cover mounted on said vehicle panel, having a major section extending over and parallel to said section of said vehicle panel secured to said vehicle panel at a point outside of said section and near said section, said major section having no openings therein for passage of acoustic vibrations generated by said section of said vehicle panel, said major section being separated by a given distance from the rest position of the opposing surface of said vehicle panel, a support extending between said major section near the peripheral edge thereof and said vehicle panel, said support being formed with at least one opening allowing transmission of acoustic vibrations produced by oscillation of said vehicle panel.