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<blockquote data-quote="Louisiana_CRX" data-source="post: 8633405" data-attributes="member: 570083"><p>The length is what effects the freq tuning ..all I like fooling with are slot ports and know how they work ..and even though they are junk look at most of the prefab box’s they all use slots it would be a heck of a lot simpler to drill a single hole and put a tube in it than to make all the cuts for a slot ..it’s really common sense ..when they can show me 100 first place trophies and plaques like I have ..I feel they know fully what they are talking about ..but back to yours ..I’m pretty sure Aeros or rounds&nbsp; work different on tuning than slots but they would work a lot better in your application because it would be easier to get each one into the back deck ..one on each side ..I don’t know the specs of your sub but a DD 9518 in a 6 cu ft internal box would work best with a port opening 96 sq inches and 22” long&nbsp; ..I’d assume your sub would have similar specs ..</p></blockquote><p></p>

[QUOTE="Louisiana_CRX, post: 8633405, member: 570083"] The length is what effects the freq tuning ..all I like fooling with are slot ports and know how they work ..and even though they are junk look at most of the prefab box’s they all use slots it would be a heck of a lot simpler to drill a single hole and put a tube in it than to make all the cuts for a slot ..it’s really common sense ..when they can show me 100 first place trophies and plaques like I have ..I feel they know fully what they are talking about ..but back to yours ..I’m pretty sure Aeros or rounds work different on tuning than slots but they would work a lot better in your application because it would be easier to get each one into the back deck ..one on each side ..I don’t know the specs of your sub but a DD 9518 in a 6 cu ft internal box would work best with a port opening 96 sq inches and 22” long ..I’d assume your sub would have similar specs .. [/QUOTE]

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