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<blockquote data-quote="NegativeEffect1" data-source="post: 655401" data-attributes="member: 554354">i **** at math and am new to building boxes. so can i get some help? im designing a box for my 12&quot; TDXs, so heres what i plan on building:H: 16inchesW: 16inchesD: 15inches1&quot; materialTotal Volume: 1.47454done with <a href="http://www.the12volt.com/caraudio/boxcalcs.asp#por" target="_blank">http://www.the12volt.com/caraudio/boxcalcs.asp#por</a>now i need to know how big my port needs to be, i plan on have a rectangular port and the manuel for the TDX says that the Fb (tuning freq.) needs to be 33 im assuming that wut u guys mean by box tuning, also what is a &quot;Port I.D.&quot; the manuel says it needs to be 4&quot; i dunno wut the length should be, somewhere inbetween 12&quot; - 17.5&quot; also wuts the F3 cuz it needs to be 35the port section isnt included in the demensions aboveim beyond confused...someone help...i hate math...o BTW this is the setup for one sub, not both, i dont know if it means anything but i will be running 1000wats to each</blockquote>

[QUOTE="NegativeEffect1, post: 655401, member: 554354"] i **** at math and am new to building boxes. so can i get some help? im designing a box for my 12" TDXs, so heres what i plan on building: H: 16inches W: 16inches D: 15inches 1" material Total Volume: 1.47454 done with [URL="http://www.the12volt.com/caraudio/boxcalcs.asp#por"]http://www.the12volt.com/caraudio/boxcalcs.asp#por[/URL] now i need to know how big my port needs to be, i plan on have a rectangular port and the manuel for the TDX says that the Fb (tuning freq.) needs to be 33 im assuming that wut u guys mean by box tuning, also what is a "Port I.D." the manuel says it needs to be 4" i dunno wut the length should be, somewhere inbetween 12" - 17.5" also wuts the F3 cuz it needs to be 35 the port section isnt included in the demensions above im beyond confused...someone help...i hate math... o BTW this is the setup for one sub, not both, i dont know if it means anything but i will be running 1000wats to each [/QUOTE]

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