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Box port help
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<blockquote data-quote="poolman966554" data-source="post: 8386091" data-attributes="member: 665165"><p>im assuming it WAS a sealed box, or maybe i missing something.. I ask that because of the size, so small, has to be sealed</p><p></p><p>You may know more about box building than i, but i thought as youve got no responses id try and help..</p><p></p><p>Cu ft = LxWxH/1728 .</p><p></p><p>Looks like your box is 2.83 cu ft internal</p><p></p><p>So 2.81cu ft after 1 sub displacement</p><p></p><p>I dont have the time to add your sub to my winISD program, but i just sampled your data on a sa-12 ive been looking at recently..</p><p></p><p>That said, in a 2.81cu ft box tuned to 35hz, port size of "2.5 x 10.5" the SA-12 would need to be 16.23 in long. Prolly useless info to you. i haven't deducted for port area, or board thickness. your prolly really close to cu ft numbers after port area. so as the box gets smaller ( in my experience) the port gets longer to keep desired port freq.</p><p></p><p>I think you should dl WinISD Alpha for yourself and try it out.</p><p></p><p>It can be intimidating to new users, but there are videos that show how to correctly setup your own sub.</p><p></p><p>EDIT: i found the video that showed me everything that you are asking - take 20 min to watch, you will be happy</p><p></p><p>[MEDIA=youtube]qJl3SDfuI9Y[/MEDIA]</p></blockquote><p></p>
[QUOTE="poolman966554, post: 8386091, member: 665165"] im assuming it WAS a sealed box, or maybe i missing something.. I ask that because of the size, so small, has to be sealed You may know more about box building than i, but i thought as youve got no responses id try and help.. Cu ft = LxWxH/1728 . Looks like your box is 2.83 cu ft internal So 2.81cu ft after 1 sub displacement I dont have the time to add your sub to my winISD program, but i just sampled your data on a sa-12 ive been looking at recently.. That said, in a 2.81cu ft box tuned to 35hz, port size of "2.5 x 10.5" the SA-12 would need to be 16.23 in long. Prolly useless info to you. i haven't deducted for port area, or board thickness. your prolly really close to cu ft numbers after port area. so as the box gets smaller ( in my experience) the port gets longer to keep desired port freq. I think you should dl WinISD Alpha for yourself and try it out. It can be intimidating to new users, but there are videos that show how to correctly setup your own sub. EDIT: i found the video that showed me everything that you are asking - take 20 min to watch, you will be happy [MEDIA=youtube]qJl3SDfuI9Y[/MEDIA] [/QUOTE]
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