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<blockquote data-quote="Papermaker85" data-source="post: 8602348" data-attributes="member: 572595">[quote name=&#039;SuperScion9000&#039;]At what point does this happen? This is my goal. As of right now I have 2k on a 18 box tuned to 27hz and it’s a massive box it hits hard but not enough what else do I need. More power ? Sent from my iPhone using Tapatalk</blockquote>&nbsp; @Souldrop **** he gets me every time!---------- Post added at 02:15 PM ---------- Previous post was at 02:14 PM ----------[quote name=&#039;hispls&#039;]The sub isn&amp;#39;t moving much because the port is doing most of the work at tuning.&nbsp;&nbsp; If you want to know why the impedance is lowest at tuning this is how to analyze the woofer in ported box:<img src="https://upload.wikimedia.org/wikipedia/commons/7/7e/VB_LF_ckt.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" />The math looks pretty ugly and is above my pay grade.&nbsp; Sufficed to say your impedance is lowest at port tuning.[/QUOTE]&nbsp;thats for a 4th order only..[/QUOTE]

[QUOTE="Papermaker85, post: 8602348, member: 572595"] [quote name='SuperScion9000']At what point does this happen? This is my goal. As of right now I have 2k on a 18 box tuned to 27hz and it’s a massive box it hits hard but not enough what else do I need. More power ? Sent from my iPhone using Tapatalk[/QUOTE] @Souldrop **** he gets me every time![COLOR="Silver"] [SIZE=1]---------- Post added at 02:15 PM ---------- Previous post was at 02:14 PM ----------[/SIZE] [/COLOR][quote name='hispls']The sub isn't moving much because the port is doing most of the work at tuning. If you want to know why the impedance is lowest at tuning this is how to analyze the woofer in ported box: [IMG]https://upload.wikimedia.org/wikipedia/commons/7/7e/VB_LF_ckt.gif[/IMG] The math looks pretty ugly and is above my pay grade. Sufficed to say your impedance is lowest at port tuning.[/QUOTE] thats for a 4th order only.. [/QUOTE]

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