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<blockquote data-quote="bladebarrier" data-source="post: 5194319" data-attributes="member: 603808">One example, would be a 92-94 maxima that was owned by a family member (I forget the exact year). It came standard with a Bose package in the SE model, that included a fixed equalizer tailored to the cabin. Free of extra charge, it was designed to adjust the speakers to the interior.This would be a &quot;common&quot; car, and certainly nothing elite.Acoustical engineers spend a lot more time measuring spl levels in cars than people might expect. Generally it&#039;s to combat road noise.Materials similar to dynomat aren&#039;t uncommon in many cars, in certain locations. The noise level of a car is a common thing to mention in a review in even a magazine like consumer reports, that could care less about the audio quality from the sound system.I just hoped that maybe that information would be passed along regularly by now to consumers, either by the car manufacturers or by companies that sell speakers designed to be put in cars as aftermarket products.I can&#039;t imagine how much time people have spent adjusting their 1/3 octave crossovers for SQ competitions, that would have loved for a better base line curve to start from instead of flat &quot;0&quot; gain on all those bands.People take days tweaking out crossovers, and surely they&#039;re not all doing it in Mercedes &quot;S&quot; class sedans.EDIT: This is the kind of stuff I&#039;m looking for <a href="http://www.diysubwoofers.org/projects/other/cartf/" target="_blank">http://www.diysubwoofers.org/projects/other/cartf/</a></blockquote>

[QUOTE="bladebarrier, post: 5194319, member: 603808"] One example, would be a 92-94 maxima that was owned by a family member (I forget the exact year). It came standard with a Bose package in the SE model, that included a fixed equalizer tailored to the cabin. Free of extra charge, it was designed to adjust the speakers to the interior. This would be a "common" car, and certainly nothing elite. Acoustical engineers spend a lot more time measuring spl levels in cars than people might expect. Generally it's to combat road noise. Materials similar to dynomat aren't uncommon in many cars, in certain locations. The noise level of a car is a common thing to mention in a review in even a magazine like consumer reports, that could care less about the audio quality from the sound system. I just hoped that maybe that information would be passed along regularly by now to consumers, either by the car manufacturers or by companies that sell speakers designed to be put in cars as aftermarket products. I can't imagine how much time people have spent adjusting their 1/3 octave crossovers for SQ competitions, that would have loved for a better base line curve to start from instead of flat "0" gain on all those bands. People take days tweaking out crossovers, and surely they're not all doing it in Mercedes "S" class sedans. EDIT: This is the kind of stuff I'm looking for [URL="http://www.diysubwoofers.org/projects/other/cartf/"]http://www.diysubwoofers.org/projects/other/cartf/[/URL] [/QUOTE]

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