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Message: <blockquote data-quote="pd8731" data-source="post: 6015630" data-attributes="member: 578521">Not sure why people always think birch is a better option just because it's stronger. It may have a higher breaking point, but that doesn't really mean squat in car audio.MDF is heavier (denser), so it therefore has more inertia. More inertia means sound waves bounce off more readily instead of being absorbed. Birch may be able to withstand more actual force before breaking, but being less dense it will also allow for more sound waves to pass through as well as reverberation.I say this because as far as I can tell, he has all the actual strength he needs with the steel bracing. MDF is a better choice for actual deadening.</blockquote>

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