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<blockquote data-quote="azimuth" data-source="post: 6665590" data-attributes="member: 566682">i am using 8&#039;s ported in my new design. i was entering the subs into winisd, just to mess around with them a little. i came up with this. it&#039;s a 6th order, the front chamber is .3 cu ft. tuned at 50hz. the rear chamber is .9 tuned to 20 hz. it shows a fairly flat response, but i have questions as to how it would actually sound in a vehicle. not that many of us have ever built a 6th order. i might possibly waste my time, and see what happens.<img src="http://i88.photobucket.com/albums/k171/kcdc30/tangband86thorder.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />doesn&#039;t look to bad to me, but winisd is doing some things i&#039;ve never seen, nor understand, with the phase plot and group delay.i&#039;ve never understood any of it, but i know that i have never seen graphs like these when modeling up any other sub.<img src="http://i88.photobucket.com/albums/k171/kcdc30/tangband86thordergroupdelay.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /><img src="http://i88.photobucket.com/albums/k171/kcdc30/tangband86thorderphaseplot.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></blockquote>

[QUOTE="azimuth, post: 6665590, member: 566682"] i am using 8's ported in my new design. i was entering the subs into winisd, just to mess around with them a little. i came up with this. it's a 6th order, the front chamber is .3 cu ft. tuned at 50hz. the rear chamber is .9 tuned to 20 hz. it shows a fairly flat response, but i have questions as to how it would actually sound in a vehicle. not that many of us have ever built a 6th order. i might possibly waste my time, and see what happens. [IMG]http://i88.photobucket.com/albums/k171/kcdc30/tangband86thorder.jpg[/IMG] doesn't look to bad to me, but winisd is doing some things i've never seen, nor understand, with the phase plot and group delay. i've never understood any of it, but i know that i have never seen graphs like these when modeling up any other sub. [IMG]http://i88.photobucket.com/albums/k171/kcdc30/tangband86thordergroupdelay.jpg[/IMG] [IMG]http://i88.photobucket.com/albums/k171/kcdc30/tangband86thorderphaseplot.jpg[/IMG] [/QUOTE]

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