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This is a little different but a few years back I read about (something similar I would assume) that works with the vehicles' glass to act as a subwoofer ... and that it was very precise and would only be heard within the vehicle (the booming effect outside the vehicle would be no-more).
I don't know what happened with that technology and where it's at now, but it seemed very interesting and revolutionary to read about.
Last edited by DaVibe; 08-08-2012 at 03:39 PM.
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