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Message: <blockquote data-quote="Airflow_Concepts" data-source="post: 8881849" data-attributes="member: 692074"><p>Okay added another 4-in port to each chamber and definitely suffered in output as far as volume and low frequency response. I do know that it is a slightly undersized recommended volume for each subwoofer. Definitely got a sniff of the coils after adding the second port to each chamber. It's literally a third louder and lower with just the one 4-in port at roughly 11 to 13 inches in length. I do know and understand that the ports need to be substantially longer when adding more port area, but at this point it seems like the enclosure volume is the inefficient factoring in the equation.  Good news is that the subs do not seem to be mechanically maxed out but the ear test does acknowledge that adding more power at a certain point Just gets muddy and ineffective for output.</p></blockquote><p></p>

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