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<blockquote data-quote="xluben" data-source="post: 2353073" data-attributes="member: 568852">already mentioned the xmax trick //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gifbut i do think it&#039;s a good site.it does have problems showing the correct image for a straight port (no bend at all) when the port is long (it shows the port not connected to the front baffle), but i believe the numbers it outputs are still correct.it also is hard to get a good design with any straight port (even if the box image is correct).&nbsp; it will alter the box width you entered to make the tuning correct while still giving the proper port area.with enough fiddling you can make it give you good design //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif&nbsp; (for most boxes this is not an issue)if you know what width, height, driver displacement, volume, tuning and port area you need (or at least what would be acceptable) it is a GREAT tool.if you don&#039;t really know what you are doing, it&#039;s easy get a crappy box design //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gifi believe it uses an end correction of 0.732like this:<img src="http://www.diysubwoofers.org/graphics/port.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" />EDIT: link isn&#039;t working for me either.&nbsp; site was fine when i posted the link, but now it won&#039;t load //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif</blockquote>

[QUOTE="xluben, post: 2353073, member: 568852"] already mentioned the xmax trick [IMG]//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif[/IMG] but i do think it's a good site. it [I]does[/I] have problems showing the correct image for a straight port (no bend at all) when the port is long (it shows the port not connected to the front baffle), but i believe the numbers it outputs are still correct. it also is hard to get a good design with any straight port (even if the box image is correct). it will alter the box width you entered to make the tuning correct while still giving the proper port area. with enough fiddling you can make it give you good design [IMG]//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif[/IMG] (for most boxes this is not an issue) if [I]you[/I] know what width, height, driver displacement, volume, tuning and port area you need (or at least what would be acceptable) it is a GREAT tool. if you don't really know what you are doing, it's easy get a crappy box design [IMG]//content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif[/IMG] i believe it uses an end correction of 0.732 like this: [IMG]http://www.diysubwoofers.org/graphics/port.gif[/IMG] EDIT: link isn't working for me either. site was fine when i posted the link, but now it won't load [IMG]//content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif[/IMG] [/QUOTE]

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