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Car Audio Help
Enclosure Design & Construction
4 cubic feet, tuned to 22 Hz, port area >= 64in^2
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<blockquote data-quote="hispls" data-source="post: 7779363" data-attributes="member: 614752"><p>You're just plain not going to get a really fierce 20hz tone without a huge box or more cone area. I promise tuned @ 27 you'll be able to play it fine (Mine didn't totally unload until around 18hz).</p><p></p><p>I haven't had great results with multiple ports though and both would still be very long and now half as narrow</p><p></p><p></p><p>I knew this woofer wanted to tune that low to model linear. Really I think you'd like the way the peaky looking one sounds though. With vehicle accoustics it should actually give you a good boost in output over a decent bandwidth.</p><p></p><p></p><p>Wrong. Tuned that low he won't hurt that sub with less than 1500W. Also the point of tuning that low is because that models linear.</p><p></p><p></p><p>Of course physics is really against you trying to play that low regardless of where you tune a conventional woofer just isn't efficient at reproducing ultra low frequency.</p><p></p><p></p><p>Even tuned in the high 20's you would have a hard time hurting that woofer with less than 1500W of power. I never ran subsonic filter when tuned that low.</p><p></p><p></p><p>length from furthest point in trunk to furthest point on the dash corner to corner in feet. Divide that into 1150 fps, then divide that by 2. Gives your peak freq anyway.</p><p></p><p></p><p>Looks decent. What's wrong with that one?</p></blockquote><p></p>
[QUOTE="hispls, post: 7779363, member: 614752"] You're just plain not going to get a really fierce 20hz tone without a huge box or more cone area. I promise tuned @ 27 you'll be able to play it fine (Mine didn't totally unload until around 18hz). I haven't had great results with multiple ports though and both would still be very long and now half as narrow I knew this woofer wanted to tune that low to model linear. Really I think you'd like the way the peaky looking one sounds though. With vehicle accoustics it should actually give you a good boost in output over a decent bandwidth. Wrong. Tuned that low he won't hurt that sub with less than 1500W. Also the point of tuning that low is because that models linear. Of course physics is really against you trying to play that low regardless of where you tune a conventional woofer just isn't efficient at reproducing ultra low frequency. Even tuned in the high 20's you would have a hard time hurting that woofer with less than 1500W of power. I never ran subsonic filter when tuned that low. length from furthest point in trunk to furthest point on the dash corner to corner in feet. Divide that into 1150 fps, then divide that by 2. Gives your peak freq anyway. Looks decent. What's wrong with that one? [/QUOTE]
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4 cubic feet, tuned to 22 Hz, port area >= 64in^2
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