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<blockquote data-quote="req" data-source="post: 517605" data-attributes="member: 555713">ok, i got a grandam with an empty trunk (friends car)he is looking at getting 6 re-8&#039;s for it. he has a PPI 6ch 100w per channel amp.perfect, no?heres the picture<img src="http://www.asterixband.com/andy/trunk.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" />now, each box is 1.5 cubes, problem is i need to know how big the slot port should be when tuned to 35hz with 11mm Xmax.we are gonna build the base and the port outta MDF for ease of construction and because it would require less fiberglass =)the rest will be solid fiberglass to the contour of the trunk.i know how to get everything else made up, i just need to know how low profile the ports can be to make them that flat\long and not too deep into the enclosure.i was thinking of making it about half way into the enclosure, prolly 2-5&quot; tall and 10-20&quot; longanyone have a calculator that i can use to calculate the INSIDE volume of the port where i can give it dimensions and a freq and it will generate somthing near that size? or maybe a formula that i can play with?it should look really nice when he gets the $300 to pay for it all!on a side note, isnt it like&nbsp; buy 3 get one free for the 8&quot; re&#039;s? so he can buy 5 and get the 6th free- and it would only cost ~$250?&nbsp; //content.invisioncic.com/y282845/emoticons/inlove.gif.6846f78f06b405429ef3a00129788a2a.gifwhat do you all think?</blockquote>

[QUOTE="req, post: 517605, member: 555713"] ok, i got a grandam with an empty trunk (friends car) he is looking at getting 6 re-8's for it. he has a PPI 6ch 100w per channel amp. perfect, no? heres the picture [IMG]http://www.asterixband.com/andy/trunk.gif[/IMG] now, each box is 1.5 cubes, problem is i need to know how big the slot port should be when tuned to 35hz with 11mm Xmax. we are gonna build the base and the port outta MDF for ease of construction and because it would require less fiberglass =) the rest will be solid fiberglass to the contour of the trunk. i know how to get everything else made up, i just need to know how low profile the ports can be to make them that flat\long and not too deep into the enclosure. i was thinking of making it about half way into the enclosure, prolly 2-5" tall and 10-20" long anyone have a calculator that i can use to calculate the INSIDE volume of the port where i can give it dimensions and a freq and it will generate somthing near that size? or maybe a formula that i can play with? it should look really nice when he gets the $300 to pay for it all! on a side note, isnt it like buy 3 get one free for the 8" re's? so he can buy 5 and get the 6th free- and it would only cost ~$250? [IMG]//content.invisioncic.com/y282845/emoticons/inlove.gif.6846f78f06b405429ef3a00129788a2a.gif[/IMG] what do you all think? [/QUOTE]

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