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<blockquote data-quote="RAM_Designs" data-source="post: 7216695" data-attributes="member: 566575">The problem is that the port opening you&#039;re using is too small for a normal 12&quot; sub, but round ports do help cut down on port displacement by quite a bit.&nbsp; However, I wouldn&#039;t go any smaller than a 4&quot; port, and it better be an aeroport with flared ends to keep port noise at a minimum and efficiency high.&nbsp; The issue then becomes that you need a 14-15&quot; long port that needs to have a few inches of clearance inside the box...so you either will have to make the box deeper than you&#039;d like or buy some 90* angles and make the port bend inside the box.&nbsp; Although slot ports take up more space, they&#039;re generally easier to plan out because you can just make it turn however you need to with ease.Oh, and the 15&quot; deep box requirement for ported boxes is not true at all.&nbsp; There&#039;s no rule-of-thumb like that.</blockquote>

[QUOTE="RAM_Designs, post: 7216695, member: 566575"] The problem is that the port opening you're using is too small for a normal 12" sub, but round ports do help cut down on port displacement by quite a bit. However, I wouldn't go any smaller than a 4" port, and it better be an aeroport with flared ends to keep port noise at a minimum and efficiency high. The issue then becomes that you need a 14-15" long port that needs to have a few inches of clearance inside the box...so you either will have to make the box deeper than you'd like or buy some 90* angles and make the port bend inside the box. Although slot ports take up more space, they're generally easier to plan out because you can just make it turn however you need to with ease. Oh, and the 15" deep box requirement for ported boxes is not true at all. There's no rule-of-thumb like that. [/QUOTE]

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