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<blockquote data-quote="ahole-ic" data-source="post: 6913501" data-attributes="member: 619324">Each having its own chamber does not prolong the life of your woofer. You DO want to provide some bracing to prevent much box flex, but that is the only thing a chamber will help. Are you sure you only have 17 x 15 x 32? That is a weird shaped box. If you do, I think you&#039;re going to have to go with a weird port too I guess.for a 17 x 15 x 32 box I would do this. Here is your cut sheet for 3/4 inch mdf.Baffles: 15 x 32Bottom: 15 x 32Sides: 30.5 x 15.5Front/Back: 15 x 15.5 ( the side your port is going on should actually be 15 x 12.5)Then just cut a board 23.25&quot; long and that is your port length.Seal it all up and here is what you have:3.69ft^3 grossport volume: .5924&quot; of physical port length40.5&quot;^2 of port areanet volume 2.80ft^3and your tuning freq should be about 33hz.You&#039;re welcome.</blockquote>

[QUOTE="ahole-ic, post: 6913501, member: 619324"] Each having its own chamber does not prolong the life of your woofer. You DO want to provide some bracing to prevent much box flex, but that is the only thing a chamber will help. Are you sure you only have 17 x 15 x 32? That is a weird shaped box. If you do, I think you're going to have to go with a weird port too I guess. for a 17 x 15 x 32 box I would do this. Here is your cut sheet for 3/4 inch mdf. Baffles: 15 x 32 Bottom: 15 x 32 Sides: 30.5 x 15.5 Front/Back: 15 x 15.5 ( the side your port is going on should actually be 15 x 12.5) Then just cut a board 23.25" long and that is your port length. Seal it all up and here is what you have: 3.69ft^3 gross port volume: .59 24" of physical port length 40.5"^2 of port area net volume 2.80ft^3 and your tuning freq should be about 33hz. You're welcome. [/QUOTE]

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