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<blockquote data-quote="nismotwin" data-source="post: 8547101" data-attributes="member: 646178"><p>Subs: Two ZV5 15&#039;s on 4k Vehicle: 99 nissan altima. Max dimensions (while still being cubical) are 41.5&#039;&#039; wide, 32.5&#039;&#039; tall, 20&#039;&#039; deep. Build is geared toward music shooting for 8.5ft3, 16in2 of port area per ft3 and port tuning of 35hz. I&#039;am using Torres to design the box using a triple baffle internal bracing and adding layers to the walls of the box on the outside once building it. What i&#039;d like to do is have a center slot port however i can&#039;t seem to make that fit without it ending right at the back wall (the port wants to be 23&#039;&#039;). It would need to stick out the front 7.75&#039;&#039; but, Torres does not take that into account and i think it would be a nightmare to try and figure out how that affects volume, port tuning and, port area. A slot port along the bottom results in a ridiculously skinny port. A 1 common wall port at the bottom results in the same issue it wants to end at the back wall. I can make a areo port work with one 10&#039;&#039; port 13&#039;&#039; long giving me 9.1in2 of port area per ft3 at 34.7hz. However as i stated i&#039;d really like to do a center slot port. Any help would be appreciated. The center solt port box i came up with is 31&#039;&#039;x41.5&#039;&#039;x20&#039;&#039;, port is 29.5&#039;&#039;x4.75&#039;&#039;x23&#039;&#039;. 2 extra baffles, sub displacment of .5, bracing displacment of .48, 2 common walls. Giving me 16.19in2 per ft3, 8.66 net vol. at 35.2hz.</p></blockquote><p></p>

[QUOTE="nismotwin, post: 8547101, member: 646178"] Subs: Two ZV5 15's on 4k Vehicle: 99 nissan altima. Max dimensions (while still being cubical) are 41.5'' wide, 32.5'' tall, 20'' deep. Build is geared toward music shooting for 8.5ft3, 16in2 of port area per ft3 and port tuning of 35hz. I'am using Torres to design the box using a triple baffle internal bracing and adding layers to the walls of the box on the outside once building it. What i'd like to do is have a center slot port however i can't seem to make that fit without it ending right at the back wall (the port wants to be 23''). It would need to stick out the front 7.75'' but, Torres does not take that into account and i think it would be a nightmare to try and figure out how that affects volume, port tuning and, port area. A slot port along the bottom results in a ridiculously skinny port. A 1 common wall port at the bottom results in the same issue it wants to end at the back wall. I can make a areo port work with one 10'' port 13'' long giving me 9.1in2 of port area per ft3 at 34.7hz. However as i stated i'd really like to do a center slot port. Any help would be appreciated. The center solt port box i came up with is 31''x41.5''x20'', port is 29.5''x4.75''x23''. 2 extra baffles, sub displacment of .5, bracing displacment of .48, 2 common walls. Giving me 16.19in2 per ft3, 8.66 net vol. at 35.2hz. [/QUOTE]

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