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Message: <blockquote data-quote="thevic24" data-source="post: 6453376" data-attributes="member: 575973">to be honest, that t1508 needs at least 16" of port per cuft to work the way it was designed to. a 3" aero is no where near enough port. check out dd's sight for their explanation.i have lots of expierence with dd woofers and find that they do need the recomended port area and in most cases work even better with more area.ive found that most people that have bad luck with them is usually due to to little port area.the 1508 iam running in my s-10 is in 1cuft with 19" of port and you would never know its an 8" unless i showed you.i do think that you will be good with the 4" aero as you usually can get away with using an aero with half the area.for diffrent tunings, just have a long 4" for the low tuning and a shorter one for the higher tuning.</blockquote>

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