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<blockquote data-quote="Buck" data-source="post: 8873697" data-attributes="member: 591582">Here try this (I use simple programs like this as a long time box designer all of the time):[URL unfurl=&quot;true&quot;]https://boomspeaker.com/subwoofer-port-calculator/[/URL]It&#039;s a really simple to use calculator, just make sure you follow the instructions.&nbsp; For a slot port for that box, you&#039;d be close to a great box doing your recommended airspace from manufacturer at 12-16 inches squared per cube (probably) of port area tuned anywhere from say 30-36 hz or so.&nbsp; It&#039;s hard to say exactly without designing it.&nbsp; I&#039;d tune to 32-33 hz personally with those, I think.&nbsp; Round ports like aero&#039;s are a little different situation, but it&#039;s still a port.&nbsp; Round ports are hard to fit in 8&quot; boxes or smaller boxes in general, because it&#039;s hard to bend a round port, easy to bend a slot and more finely controllable tuning with slot.</blockquote>

[QUOTE="Buck, post: 8873697, member: 591582"] Here try this (I use simple programs like this as a long time box designer all of the time): [URL unfurl="true"]https://boomspeaker.com/subwoofer-port-calculator/[/URL] It's a really simple to use calculator, just make sure you follow the instructions. For a slot port for that box, you'd be close to a great box doing your recommended airspace from manufacturer at 12-16 inches squared per cube (probably) of port area tuned anywhere from say 30-36 hz or so. It's hard to say exactly without designing it. I'd tune to 32-33 hz personally with those, I think. Round ports like aero's are a little different situation, but it's still a port. Round ports are hard to fit in 8" boxes or smaller boxes in general, because it's hard to bend a round port, easy to bend a slot and more finely controllable tuning with slot. [/QUOTE]

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