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<blockquote data-quote="THATpurpleKUSH" data-source="post: 8679588" data-attributes="member: 615398">If you are a beginner using a slot port it&#039;s easier to offset the port to one side.Here&#039;s what I came up with. You dimensions make packaging hard because you need a big port for the amp you are running. Before you build the box, test fit a cardboard mock up to make sure you can get it through your trunk opening.Using these dimensions: 38 wide 14 high 22 deepFinal specs are 4cf tuned to 37hz. It&#039;s not designed to crush low notes but will sound good on a variety of music and should put up a good spl score if you meter it. There is a double thick front baffle which is necessary for strength because those SA subs are heavy. Port area measures 5 x 12.5 which is a just a hair on the smaller side but it&#039;s the best I could do with the space you have available. top: 38 x 22bottom: 38 x 22left: 21.25 x 12.5right: 20.5 x 12.5front outer: 32.25 x 12.5front inner: 31.5 x 12.5back: 38 x 12.5port: 15.5 x 12.5Use 2 1.25 inch thick dowels top to bottom for vertical bracing and 2 1.25 inch thick dowels front to back in between the subs for additional bracing. You want the box to be as stiff as possible. Also it would be a good idea to add a 45 in the corner of the port to smooth out airflow.To give you an idea of what it would look like but does not show a double thick baffle or bracing or 45s:[ATTACH=full]18018[/ATTACH]</blockquote>

[QUOTE="THATpurpleKUSH, post: 8679588, member: 615398"] If you are a beginner using a slot port it's easier to offset the port to one side. Here's what I came up with. You dimensions make packaging hard because you need a big port for the amp you are running. Before you build the box, test fit a cardboard mock up to make sure you can get it through your trunk opening. Using these dimensions: 38 wide 14 high 22 deep Final specs are 4cf tuned to 37hz. It's not designed to crush low notes but will sound good on a variety of music and should put up a good spl score if you meter it. There is a double thick front baffle which is necessary for strength because those SA subs are heavy. Port area measures 5 x 12.5 which is a just a hair on the smaller side but it's the best I could do with the space you have available. top: 38 x 22 bottom: 38 x 22 left: 21.25 x 12.5 right: 20.5 x 12.5 front outer: 32.25 x 12.5 front inner: 31.5 x 12.5 back: 38 x 12.5 port: 15.5 x 12.5 Use 2 1.25 inch thick dowels top to bottom for vertical bracing and 2 1.25 inch thick dowels front to back in between the subs for additional bracing. You want the box to be as stiff as possible. Also it would be a good idea to add a 45 in the corner of the port to smooth out airflow. To give you an idea of what it would look like but does not show a double thick baffle or bracing or 45s: [ATTACH type="full" alt="18018"]18018[/ATTACH] [/QUOTE]

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