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<blockquote data-quote="WOT" data-source="post: 6367611" data-attributes="member: 581904">Designing a wall for my next build. Im gonna start the build with AQ HDC3 18&#039;s at first, but its probly gonna change fast. Looking for a 38hz tune with AQ&#039;s, with the ability to plug a port, and drop down to the low 30&#039;s.Dont exactly know how to model this up, but I think this way works. Box will be around 13 cubes (odd shape fiberglass to do so Im not sure on the exact yet) with (3) 8&quot; single flare aeroportsGo to this site:<a href="http://www.psp-inc.com/psp-inc.com/cgi-bin/port_length_calculator.cgi" target="_blank">http://www.psp-inc.com/psp-inc.com/cgi-bin/port_length_calculator.cgi</a>Enter133883Gives me a length of 16.8&quot; for the 38hz tuneSo say I plug a port. Enter133182Gives me a length of 16.83&quot; for a 31hz tune (obviously there is some error here as I dont know the volume of my box yet)But that works correct? Being as the lengths are almost equal, Id just like the ability to flop tunes and see what happens on multiple sub setups Im going to have in this box.Thanks for any help</blockquote>

[QUOTE="WOT, post: 6367611, member: 581904"] Designing a wall for my next build. Im gonna start the build with AQ HDC3 18's at first, but its probly gonna change fast. Looking for a 38hz tune with AQ's, with the ability to plug a port, and drop down to the low 30's. Dont exactly know how to model this up, but I think this way works. Box will be around 13 cubes (odd shape fiberglass to do so Im not sure on the exact yet) with (3) 8" single flare aeroports Go to this site: [URL="http://www.psp-inc.com/psp-inc.com/cgi-bin/port_length_calculator.cgi"]http://www.psp-inc.com/psp-inc.com/cgi-bin/port_length_calculator.cgi[/URL] Enter 13 38 8 3 Gives me a length of 16.8" for the 38hz tune So say I plug a port. Enter 13 31 8 2 Gives me a length of 16.83" for a 31hz tune (obviously there is some error here as I dont know the volume of my box yet) But that works correct? Being as the lengths are almost equal, Id just like the ability to flop tunes and see what happens on multiple sub setups Im going to have in this box. Thanks for any help [/QUOTE]

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