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<blockquote data-quote="adulbrich" data-source="post: 8507389" data-attributes="member: 661255">Subs are getting shipped this week, and I need to decide on an enclosure for sure. I have 50 more yards of fiberglass coming. I currently have 5 gallons of resin, 25 feet of fiberglass cloth, a sheet of 4&#039;x8&#039; birch plywood, a few 2x4&#039;s, screws, and threaded 1&quot; metal pipe. Going to buy 1 or two more sheets of birch and 50 2x4&#039;s soon.I was really stuck on the design of the sealed chamber on the bottom with the ported chamber on top and a top port. Subs would be facing down with the motors up. Would look something like these pictures:<img src="http://www.caraudioclassifieds.org/forum/members/jorgesau100/albums/06-hummer-h3/7337-4th-order-bandpass.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /><img src="http://cs11230.userapi.com/v11230233/596/EYpj_85rYNo.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />I&#039;m also considering doing 4 of the subs on each side and putting the port in the middle like these pictures:<img src="http://i1216.photobucket.com/albums/dd364/Jesse_Lovell/ISO-1-1.png" alt="" class="fr-fic fr-dii fr-draggable " style="" /><img src="https://encrypted-tbn1.gstatic.com/images?q=tbn:ANd9GcQCbfYzTk4wsZvSVi9a0kejvAqPODPNuJpqhbt8OHiljW5T5Rxk" alt="" class="fr-fic fr-dii fr-draggable " style="" />I know with a shared airspace, subs need less enclosure volume. Would separating them into two sealed chambers instead of one sealed chamber really make a difference on how much sealed volume they would need?Would either design yield more/less cancellation?Which would you guys choose and why?Thanks!</blockquote>

[QUOTE="adulbrich, post: 8507389, member: 661255"] Subs are getting shipped this week, and I need to decide on an enclosure for sure. I have 50 more yards of fiberglass coming. I currently have 5 gallons of resin, 25 feet of fiberglass cloth, a sheet of 4'x8' birch plywood, a few 2x4's, screws, and threaded 1" metal pipe. Going to buy 1 or two more sheets of birch and 50 2x4's soon. I was really stuck on the design of the sealed chamber on the bottom with the ported chamber on top and a top port. Subs would be facing down with the motors up. Would look something like these pictures: [IMG]http://www.caraudioclassifieds.org/forum/members/jorgesau100/albums/06-hummer-h3/7337-4th-order-bandpass.jpg[/IMG] [IMG]http://cs11230.userapi.com/v11230233/596/EYpj_85rYNo.jpg[/IMG] I'm also considering doing 4 of the subs on each side and putting the port in the middle like these pictures: [IMG]http://i1216.photobucket.com/albums/dd364/Jesse_Lovell/ISO-1-1.png[/IMG] [IMG]https://encrypted-tbn1.gstatic.com/images?q=tbn:ANd9GcQCbfYzTk4wsZvSVi9a0kejvAqPODPNuJpqhbt8OHiljW5T5Rxk[/IMG] I know with a shared airspace, subs need less enclosure volume. Would separating them into two sealed chambers instead of one sealed chamber really make a difference on how much sealed volume they would need? Would either design yield more/less cancellation? Which would you guys choose and why? Thanks! [/QUOTE]

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