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<blockquote data-quote="dbornotdb" data-source="post: 445932" data-attributes="member: 554715"><p><span style="color: Blue">I was bored and ran this for you.</span></p><p></p><p><span style="color: Blue"> </span></p><p></p><p><span style="color: Blue">2.5 cu ft is too small for ported if you ask me, but you can add a 4" port that is 14.25" long and it will tune it to 30hz. The good thing about this, for SPL reasons, is a gain of 4db @ 65hz. The draw back to this is a 3db down point of 40 hz. In car this won't be as noticable, but power handling below that will be bad.</span></p><p></p><p><span style="color: Blue"> </span></p><p></p><p><span style="color: Blue"> </span></p><p></p><p><span style="color: Blue">Keep the box you have or build a new one.</span></p></blockquote><p></p>
[QUOTE="dbornotdb, post: 445932, member: 554715"] [COLOR=Blue]I was bored and ran this for you.[/COLOR] [COLOR=Blue] [/COLOR] [COLOR=Blue]2.5 cu ft is too small for ported if you ask me, but you can add a 4" port that is 14.25" long and it will tune it to 30hz. The good thing about this, for SPL reasons, is a gain of 4db @ 65hz. The draw back to this is a 3db down point of 40 hz. In car this won't be as noticable, but power handling below that will be bad.[/COLOR] [COLOR=Blue] [/COLOR] [COLOR=Blue] [/COLOR] [COLOR=Blue]Keep the box you have or build a new one.[/COLOR] [/QUOTE]
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