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Message: <blockquote data-quote="Z3n" data-source="post: 7481771" data-attributes="member: 635455">Hey I was wondering about how to determine port size for two 12" subs sharing a single port. Each sub would have its own air space, about 2.00 cubic feet. If I have one port in the middle of the two subs what do I do for calculating the port length and dimensions? Would I use a calculator like <a href="http://www.the12volt.com/caraudio/boxcalcs.asp#porsq" target="_blank">this one</a> at the12volt and put in 4.00 cubic feet for volume or what?Thanks for any help!Oh, and one other thing. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite7" alt=":p" title="Stick out tongue    :p" loading="lazy" data-shortname=":p" /> I have a limited amount of space so how bad would it be if I went down to about 1.75 cubic feet per sub?</blockquote>

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