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<blockquote data-quote="blenahan" data-source="post: 8321203" data-attributes="member: 663098">Yeah I&#039;m planning on kerfing just the exit of the port, not the whole thing.&nbsp; Also if the port has to turn in the box I was going to make 45 degree cuts on the corners so that the air isn&#039;t going around a 90 degree angle.&nbsp; I&#039;m not sure how big my radius is going to be, haven&#039;t decided yet, any recommendations?Also, do the seems of a ported box have to be air tight like when building a sealed enclosure?&nbsp; I know that may seem like a dumb question, i just want to be absolutely sure when I build the box.And one final thing, I watched the video from CAF on youtube about how to design a box, but he did it with one driver and I have two. So my question is, when calculating the area of the port, I do the total volume needed for the subs (2.5 ft^3) and do I multiply it by 14? (he said anywhere between 12-16in^2 per 1ft^3 of space) or since I have two drivers do I multiply it by 28?&nbsp; Is this the area of the exit port or the area of the port for each driver? Thanks again for all the help! I know I&#039;m asking a lot of questions.</blockquote>

[QUOTE="blenahan, post: 8321203, member: 663098"] Yeah I'm planning on kerfing just the exit of the port, not the whole thing. Also if the port has to turn in the box I was going to make 45 degree cuts on the corners so that the air isn't going around a 90 degree angle. I'm not sure how big my radius is going to be, haven't decided yet, any recommendations? Also, do the seems of a ported box have to be air tight like when building a sealed enclosure? I know that may seem like a dumb question, i just want to be absolutely sure when I build the box. And one final thing, I watched the video from CAF on youtube about how to design a box, but he did it with one driver and I have two. So my question is, when calculating the area of the port, I do the total volume needed for the subs (2.5 ft^3) and do I multiply it by 14? (he said anywhere between 12-16in^2 per 1ft^3 of space) or since I have two drivers do I multiply it by 28? Is this the area of the exit port or the area of the port for each driver? Thanks again for all the help! I know I'm asking a lot of questions. [/QUOTE]

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