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Car Audio Discussion
General Car Audio
Is 120hz crossover point ok?
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<blockquote data-quote="winkychevelle" data-source="post: 8862554" data-attributes="member: 611804"><p>So many variables.</p><p></p><p>Currently my front sub is playing 25-115hz my midbass are 60-2500</p><p>And tweeters are 2500 and up. </p><p></p><p>The thing is kick drums are 50-90hz which is the hardest range to get right in a car.</p><p></p><p>My suggestion is keep everything at 80hz.</p><p></p><p>The higher the frequency the easier it is for a speaker to be localized by the brain. </p><p></p><p>This is what makes a proper 3way front so powerful. You can cross low enough that the speakers don't beam and stay omnidirectional. Tweeters are unavoidably directional but our ears lose sensitivity around the point they become directional. But if you tweeters are aimed at listener you will obviously still pick up more top end detail. </p><p></p><p>10 inch Subs on the otherhand beam very low 675hz but they don't play that high either.</p><p></p><p>While you might not have issue with beaming/directionality you might have issue with the drivers le being too high meaning they will roll off early or intermodular distortion. Which is when the driver is trying to play to frequencies at the same time. </p><p></p><p>This is pretty common for subs and midbass drivers trying to cover too wide a bandwidth.</p><p></p><p>The easiest fix to that issue is narrowing the bandwidth. Either by cutting the top end or bottom end. </p><p></p><p>Just think that sub is trying to stop a 150g cone moving 30hz and suddenly make it move 120hz.</p><p></p><p>This isn't exactly how speakers work as it's an over simplification but it gives you an idea of what is causing certain issues while you are testing around.</p></blockquote><p></p>
[QUOTE="winkychevelle, post: 8862554, member: 611804"] So many variables. Currently my front sub is playing 25-115hz my midbass are 60-2500 And tweeters are 2500 and up. The thing is kick drums are 50-90hz which is the hardest range to get right in a car. My suggestion is keep everything at 80hz. The higher the frequency the easier it is for a speaker to be localized by the brain. This is what makes a proper 3way front so powerful. You can cross low enough that the speakers don't beam and stay omnidirectional. Tweeters are unavoidably directional but our ears lose sensitivity around the point they become directional. But if you tweeters are aimed at listener you will obviously still pick up more top end detail. 10 inch Subs on the otherhand beam very low 675hz but they don't play that high either. While you might not have issue with beaming/directionality you might have issue with the drivers le being too high meaning they will roll off early or intermodular distortion. Which is when the driver is trying to play to frequencies at the same time. This is pretty common for subs and midbass drivers trying to cover too wide a bandwidth. The easiest fix to that issue is narrowing the bandwidth. Either by cutting the top end or bottom end. Just think that sub is trying to stop a 150g cone moving 30hz and suddenly make it move 120hz. This isn't exactly how speakers work as it's an over simplification but it gives you an idea of what is causing certain issues while you are testing around. [/QUOTE]
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Is 120hz crossover point ok?
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