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Enclosure Design & Construction
Box for 4 SoundQubed HDS3-12s
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<blockquote data-quote="BoogerMan" data-source="post: 8474245" data-attributes="member: 668837"><p>[quote name='Jeffdachef']decoupling is when you prevent two metal surfaces from vibrating against eachother. Where ever you need to do it will appear once the system is in. In a Toyota, rattle treatment is a long and arduous process. I had a corolla and it took months for me to pinpoint all of the rattles and new ones always seem to keep on comming.</p><p></p><p>The spray foam can be used in any hole or gap. Just get some painter&#39;s tape and cover the holes right after you fill it in. This should help condense the spray foam even more and keep things a lot cleaner. I&#39;d also leave the tape on for a month or so before taking it off. It takes literally that long to cure if you do it this way, but the foam will be much denser and harder.</p></blockquote><p></p><p>Wow thank you for all the great tips and info! I&#39;ll have to take out the V brace so I can lay deadener where it bolts to the cab body. I may not need to deaden the whole brace if it is one solid piece of metal. Like you said, Omce the system is in, then I&#39;ll realy be able to find the rattles.</p><p></p><p>Here are some numbers I worked out last night. I&#39;ll draw it up when I get the chance, and then maybe [USER=661313]@The_Dealer[/USER] could mock up a nice image of it with that fancy computer program <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big grin :D" loading="lazy" data-shortname=":D" /> </p><p></p><p>Box dimensions outer</p><p>46" width</p><p>21.75" height (double baffle)</p><p>24" depth</p><p>=13.9ft^3</p><p>(2x4 going under the box as a platform)</p><p></p><p>Box dimensions inner (using 3/4" wood)</p><p>44.5" width</p><p>19.5" height</p><p>22.5" depth</p><p>=11.30ft^3 before displacement </p><p></p><p>Sub displacement</p><p>155"^3</p><p>x4 </p><p>=0.36ft^3</p><p></p><p>Port dimensions</p><p>12" diameter sonotube </p><p>14.61" length (should tune it to 36hz according to PSP website. I used a cube size of 10.5 which is the number after displacement of everything except the port. Did I do that right?)</p><p>=0.96ft^3</p><p>*this will be about 11.8"^2 of port area per net cubic foot</p><p></p><p>Brace dimensions</p><p>?? Didn&#39;t figure this out yet but let&#39;s say 0.41 cubes to be safe haha</p><p>=0.41ft^3</p><p></p><p>total displacement</p><p>=1.73ft^3</p><p></p><p>sub box after displacement </p><p>=9.57ft^3</p><p>~2.40ft^3 per sub</p><p></p><p>Should I increase the box slightly to give more cubes per sub or is 2.4 enough?</p><p>[/QUOTE]</p>
[QUOTE="BoogerMan, post: 8474245, member: 668837"] [quote name='Jeffdachef']decoupling is when you prevent two metal surfaces from vibrating against eachother. Where ever you need to do it will appear once the system is in. In a Toyota, rattle treatment is a long and arduous process. I had a corolla and it took months for me to pinpoint all of the rattles and new ones always seem to keep on comming. The spray foam can be used in any hole or gap. Just get some painter's tape and cover the holes right after you fill it in. This should help condense the spray foam even more and keep things a lot cleaner. I'd also leave the tape on for a month or so before taking it off. It takes literally that long to cure if you do it this way, but the foam will be much denser and harder.[/QUOTE] Wow thank you for all the great tips and info! I'll have to take out the V brace so I can lay deadener where it bolts to the cab body. I may not need to deaden the whole brace if it is one solid piece of metal. Like you said, Omce the system is in, then I'll realy be able to find the rattles. Here are some numbers I worked out last night. I'll draw it up when I get the chance, and then maybe [USER=661313]@The_Dealer[/USER] could mock up a nice image of it with that fancy computer program :D Box dimensions outer 46" width 21.75" height (double baffle) 24" depth =13.9ft^3 (2x4 going under the box as a platform) Box dimensions inner (using 3/4" wood) 44.5" width 19.5" height 22.5" depth =11.30ft^3 before displacement Sub displacement 155"^3 x4 =0.36ft^3 Port dimensions 12" diameter sonotube 14.61" length (should tune it to 36hz according to PSP website. I used a cube size of 10.5 which is the number after displacement of everything except the port. Did I do that right?) =0.96ft^3 *this will be about 11.8"^2 of port area per net cubic foot Brace dimensions ?? Didn't figure this out yet but let's say 0.41 cubes to be safe haha =0.41ft^3 total displacement =1.73ft^3 sub box after displacement =9.57ft^3 ~2.40ft^3 per sub Should I increase the box slightly to give more cubes per sub or is 2.4 enough? [/QUOTE]
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