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<blockquote data-quote="THATpurpleKUSH" data-source="post: 7860212" data-attributes="member: 615398"><p>My advice is to get an 8inch sonotube (cement form) from home depot for $5, get the one that 7 3/4inch wide or whatever the smallest is, do sub back, port to the side, you will need 24inches of length to get a 35hz tune with 3.5 cu/ft. If you go up in volume to 4 cu/ft, you can get the length down to ~20inches. If you went with 31 wide, same height at 16.25 and a little more depth, like 19-20, that should give you enough room after displacements for about 4 cu/ft. Bracing is done with simple dowel rods, at least 1inch in diameter.</p><p></p><p>Build this box, only use the smallest size of 8inch sonotube instead of 3inch aeros:</p><p></p><p><img src="http://carphotos4.cardomain.com/images/0015/61/19/15941691_large.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="THATpurpleKUSH, post: 7860212, member: 615398"] My advice is to get an 8inch sonotube (cement form) from home depot for $5, get the one that 7 3/4inch wide or whatever the smallest is, do sub back, port to the side, you will need 24inches of length to get a 35hz tune with 3.5 cu/ft. If you go up in volume to 4 cu/ft, you can get the length down to ~20inches. If you went with 31 wide, same height at 16.25 and a little more depth, like 19-20, that should give you enough room after displacements for about 4 cu/ft. Bracing is done with simple dowel rods, at least 1inch in diameter. Build this box, only use the smallest size of 8inch sonotube instead of 3inch aeros: [IMG]http://carphotos4.cardomain.com/images/0015/61/19/15941691_large.jpg[/IMG] [/QUOTE]
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