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2002 Toyota Tundra Access Cab - center console sub
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<blockquote data-quote="keep_hope_alive" data-source="post: 7639618" data-attributes="member: 576029"><p>open weave fabrics are mostly acoustically transparent - with some high frequency attenuation. you can RTA with and without the fabric covering to see for yourself.</p><p></p><p>so the answer to your question about absorbing reflections (the main reason we would want a dash mat) is: it depends on frequency. when a glancing reflection is caused (like apillar tweeters) the material seems thicker and some scattering at very high frequencies may be seen. but at 1k? nada. 4k? nada. maybe 10k and up.</p><p></p><p>maybe if the dash mat had a layer of SoundTex on top of an inch or so of open cell foam or compressed fiberglass...</p></blockquote><p></p>
[QUOTE="keep_hope_alive, post: 7639618, member: 576029"] open weave fabrics are mostly acoustically transparent - with some high frequency attenuation. you can RTA with and without the fabric covering to see for yourself. so the answer to your question about absorbing reflections (the main reason we would want a dash mat) is: it depends on frequency. when a glancing reflection is caused (like apillar tweeters) the material seems thicker and some scattering at very high frequencies may be seen. but at 1k? nada. 4k? nada. maybe 10k and up. maybe if the dash mat had a layer of SoundTex on top of an inch or so of open cell foam or compressed fiberglass... [/QUOTE]
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2002 Toyota Tundra Access Cab - center console sub
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