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GP Audio Called Me on The Box6
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<blockquote data-quote="winkychevelle" data-source="post: 8836797" data-attributes="member: 611804"><p>45s in the port are for airflow, 45s in the corner at for strength.</p><p></p><p>[USER=631274]@2RZ-FE[/USER] 15in^2 of Port per cube is about average for most subs. sub size doesn't matter its the relationship of the air velocity in the port VS the air displacement of the sub.</p><p></p><p>its not uncommon to be able to use 12in^2 percube on low excursion subs like the jl w3 but take a sub with more xmax like the sundown sa and you will want more port area, jump to extreme excursion subs like the sundown z series and you need even more port area.</p><p></p><p>as you increase air displacement through Xmax or cone area you need more port. cone area is pretty linear, Xmas you have to calculate port velocity an keep it under 40m/s ideally 30m/s</p></blockquote><p></p>
[QUOTE="winkychevelle, post: 8836797, member: 611804"] 45s in the port are for airflow, 45s in the corner at for strength. [USER=631274]@2RZ-FE[/USER] 15in^2 of Port per cube is about average for most subs. sub size doesn't matter its the relationship of the air velocity in the port VS the air displacement of the sub. its not uncommon to be able to use 12in^2 percube on low excursion subs like the jl w3 but take a sub with more xmax like the sundown sa and you will want more port area, jump to extreme excursion subs like the sundown z series and you need even more port area. as you increase air displacement through Xmax or cone area you need more port. cone area is pretty linear, Xmas you have to calculate port velocity an keep it under 40m/s ideally 30m/s [/QUOTE]
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