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Port length question
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<blockquote data-quote="Snapper_Slapper" data-source="post: 8338592" data-attributes="member: 645213"><p>No. With 3.7 gross volume and 8" port your port would have to be 40 inches long to get to 35.97hz and leave you around 2.25 net after displacements. The only option I see is the 6" port. Did you also factor in woofer and bracing displacement? If not then the 3.7 box would be around 3.25 net which is near optimal for the 6" port. This is all just guesstimation because I don't know specifics but 3.7 gross - .26(6" port x 15") - .17(assuming 1 15' woofer) - .1 (bracing) = 3.27 cu/ft tuned to 34.65hz and 8.64 sq/in of port area. You can also add more bracing or blocks to bring your port area per foot up. Use the Torres calc. Play around.</p></blockquote><p></p>
[QUOTE="Snapper_Slapper, post: 8338592, member: 645213"] No. With 3.7 gross volume and 8" port your port would have to be 40 inches long to get to 35.97hz and leave you around 2.25 net after displacements. The only option I see is the 6" port. Did you also factor in woofer and bracing displacement? If not then the 3.7 box would be around 3.25 net which is near optimal for the 6" port. This is all just guesstimation because I don't know specifics but 3.7 gross - .26(6" port x 15") - .17(assuming 1 15' woofer) - .1 (bracing) = 3.27 cu/ft tuned to 34.65hz and 8.64 sq/in of port area. You can also add more bracing or blocks to bring your port area per foot up. Use the Torres calc. Play around. [/QUOTE]
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