pimpnFosgates Posted July 5, 2012 Report Share Posted July 5, 2012 i want something similar to this for my 2 sa12s. theyre runnin off a mbquart 1000.1 right now but i plan on another 100.1. if you could help me calculate, or if theres a fancy box guru that can help me out. 13 wide by 34 long and however tall as you need. thank you. just need help calculating really Quote Lucky Durango Sony hu 4 croosfire 6.5mids crossfire 600.1 mono amp American bass 1280.4 mids and highs amp aq hdc3 12 2.4 cube net box, tuned to 34 and 14.4 inches of port per cube Link to comment Share on other sites More sharing options...
siucsaluki11 Posted July 5, 2012 Report Share Posted July 5, 2012 (edited) Use trig/geometry and you can do it no problem...you just have to divide that bitch into parts, find the volume of each section, add it all up, and youll have your volume. Edited July 5, 2012 by siucsaluki11 Quote woman..cant live with em...cant shoot em...guess were all fucked You might be a Redneck if you use your leftover gutters for a speaker box port... YOU JUST LOST THE GAMER.I.P. Blazer=========================Last setup was in the 141s on music (37hz) with 2 12s and 1kw in a 4dr blazer.2010 Mitsubishi Lancer DE2 12in Clarions (kept from blazer)HiFonics BRZ1700.1d (at 2 ohms BLOWN) [JBL GTS180X for subs currently 60wRMS x2ch!!!!!! This works for till i get the blown amp fixed] Alpine 4ch salvaged from blazer (currently near death)9887 peerless 7s in the doors and CDT tweeters ran active no speakers in the rearKintik HC1400 under the hood.metered once a while ago, dont remember it...was piss poor compared to the blazer, mid 130s i think....looking to replace subs and amp when i have money. Link to comment Share on other sites More sharing options...
Jessica Posted July 5, 2012 Report Share Posted July 5, 2012 (edited) Just divide it up into the largest square/rectangle shapes as possible, figure the volume on those. then figure the triangles left over. for the triangles it's (base X height) / 2 then X width for area.then add triangle volume and the other one from the squares edit. dont forget to subtract the port. Edited July 5, 2012 by strangeduck Quote Rest in peace, walled 87 accord build log 03' Corolla build with AA Mayhem inside. My super random youtube channel and terrible camera work. Wiring comparison by CaptainzPlanetz Wire and fuse guide by Guest SyKo13 Link to comment Share on other sites More sharing options...
LZTYBRN Posted July 5, 2012 Report Share Posted July 5, 2012 (edited) Okay here's how you can calculate volume in sketchup: Here's the box with the side off. I basically just used random dimensions for height. Now, delete the port so you're left with just the back wall. Select the back wall. Right click on it and go to area > selection. Now, the area may be given in square inches or square feet. If it's given in square feet, then multiply by 144 to get square inches. Let's say you were given 4.8 square feet. Multiplying by 144 gives you 691.2 square inches. Record this number. Measure the inside width of the box. If you're using 13" as the width, then it'll be 11.5". Record this number Now just multiply the two numbers you recorded. So in our example, you have 691.2*11.5=7948.8. This is your area in cubic inches. Divide by 1728 to get cubic feet (in our case, you get 4.6). This is your GROSS volume. You can plug this in to torres, and then plug your port dimensions and woofer/bracing displacement, and it'll calculate the rest for you. Hope this helps. Edited July 7, 2012 by LZTYBRN Quote Link to comment Share on other sites More sharing options...
siucsaluki11 Posted July 5, 2012 Report Share Posted July 5, 2012 i find its easier to just tell them multiply your area by the hight, then divide by 1728 (12^3) Quote woman..cant live with em...cant shoot em...guess were all fucked You might be a Redneck if you use your leftover gutters for a speaker box port... YOU JUST LOST THE GAMER.I.P. Blazer=========================Last setup was in the 141s on music (37hz) with 2 12s and 1kw in a 4dr blazer.2010 Mitsubishi Lancer DE2 12in Clarions (kept from blazer)HiFonics BRZ1700.1d (at 2 ohms BLOWN) [JBL GTS180X for subs currently 60wRMS x2ch!!!!!! This works for till i get the blown amp fixed] Alpine 4ch salvaged from blazer (currently near death)9887 peerless 7s in the doors and CDT tweeters ran active no speakers in the rearKintik HC1400 under the hood.metered once a while ago, dont remember it...was piss poor compared to the blazer, mid 130s i think....looking to replace subs and amp when i have money. Link to comment Share on other sites More sharing options...
LZTYBRN Posted July 5, 2012 Report Share Posted July 5, 2012 i find its easier to just tell them multiply your area by the hight, then divide by 1728 (12^3) What do you mean "tell them" to multiply your area by height? Quote Link to comment Share on other sites More sharing options...
Jessica Posted July 5, 2012 Report Share Posted July 5, 2012 i find its easier to just tell them multiply your area by the hight, then divide by 1728 (12^3) LOL, that only works on uniform boxes dork mcgee, This is an irreglular box, so short of dunking it in water ala "Archimedes" you have to either use a tool like sketchup or break it down. Quote Rest in peace, walled 87 accord build log 03' Corolla build with AA Mayhem inside. My super random youtube channel and terrible camera work. Wiring comparison by CaptainzPlanetz Wire and fuse guide by Guest SyKo13 Link to comment Share on other sites More sharing options...
siucsaluki11 Posted July 5, 2012 Report Share Posted July 5, 2012 (edited) i find its easier to just tell them multiply your area by the hight, then divide by 1728 (12^3) What do you mean "tell them" to multiply your area by height? take the area of the base (or in this case the side) and multiply it by the height (width in this case) in inches, save the conversion to cuft at the very end, till then, its easiest to keep it all in inches.... i find its easier to just tell them multiply your area by the hight, then divide by 1728 (12^3) LOL, that only works on uniform boxes dork mcgee, This is an irreglular box, so short of dunking it in water ala "Archimedes" you have to either use a tool like sketchup or break it down. ummm, yeah, since his box is the way it is, you can take the area of one of the sides, multiply it by the depth of the box (in inches) then divide it by 1728in, which is 12inx12inx12in to convert it to feet. If youre talking about boxes with different depths on the top and bottom, measure a side and the same rules apply smartass. You can use sketchup to get the area of the side, or you can not be a lazy fuck like you probably are, grab a fucking paper and pencil and a ruler, and do some math to figure it out. But apparently youre too fucking lazy. Doing what you said wouldnt work anyway, it would give the Gross Volume, not even taking the thickness of the wood into account in this situation. You can ALWAYS use math (trig/geometry in this case) to do this kinda stuff.... Also, my method is the SAME as the guy who also posted, but i convert to cuft at the end, i leave everything in inches till then. Edited July 5, 2012 by siucsaluki11 Quote woman..cant live with em...cant shoot em...guess were all fucked You might be a Redneck if you use your leftover gutters for a speaker box port... YOU JUST LOST THE GAMER.I.P. Blazer=========================Last setup was in the 141s on music (37hz) with 2 12s and 1kw in a 4dr blazer.2010 Mitsubishi Lancer DE2 12in Clarions (kept from blazer)HiFonics BRZ1700.1d (at 2 ohms BLOWN) [JBL GTS180X for subs currently 60wRMS x2ch!!!!!! This works for till i get the blown amp fixed] Alpine 4ch salvaged from blazer (currently near death)9887 peerless 7s in the doors and CDT tweeters ran active no speakers in the rearKintik HC1400 under the hood.metered once a while ago, dont remember it...was piss poor compared to the blazer, mid 130s i think....looking to replace subs and amp when i have money. Link to comment Share on other sites More sharing options...
Jessica Posted July 5, 2012 Report Share Posted July 5, 2012 (edited) i find its easier to just tell them multiply your area by the hight, then divide by 1728 (12^3) What do you mean "tell them" to multiply your area by height? take the area of the base (or in this case the side) and multiply it by the height (width in this case) in inches, save the conversion to cuft at the very end, till then, its easiest to keep it all in inches.... i find its easier to just tell them multiply your area by the hight, then divide by 1728 (12^3) LOL, that only works on uniform boxes dork mcgee, This is an irreglular box, so short of dunking it in water ala "Archimedes" you have to either use a tool like sketchup or break it down. ummm, yeah, since his box is the way it is, you can take the area of one of the sides, multiply it by the depth of the box (in inches) then divide it by 1728in, which is 12inx12inx12in to convert it to feet. If youre talking about boxes with different depths on the top and bottom, measure a side and the same rules apply smartass. You can use sketchup to get the area of the side, or you can not be a lazy fuck like you probably are, grab a fucking paper and pencil and a ruler, and do some math to figure it out. But apparently youre too fucking lazy. Doing what you said wouldnt work anyway, it would give the Gross Volume, not even taking the thickness of the wood into account in this situation. It is assumed you don't figure the wood thickness into the equation, only internal dimensions. And if you will take notice the box has a 45 degree angle in the middle therefore your method wont work. edit. I do want to add that yes area X depth will work, but you can't just do "X" x "Y" to get the area of a trapezoid like you make it sound. Edited July 5, 2012 by strangeduck Quote Rest in peace, walled 87 accord build log 03' Corolla build with AA Mayhem inside. My super random youtube channel and terrible camera work. Wiring comparison by CaptainzPlanetz Wire and fuse guide by Guest SyKo13 Link to comment Share on other sites More sharing options...
LZTYBRN Posted July 5, 2012 Report Share Posted July 5, 2012 (edited) i find its easier to just tell them multiply your area by the hight, then divide by 1728 (12^3) What do you mean "tell them" to multiply your area by height? take the area of the base (or in this case the side) and multiply it by the height (width in this case) in inches, save the conversion to cuft at the very end, till then, its easiest to keep it all in inches.... The area is given in square feet, not square inches (at least for me). So keeping it in inches till the end would involve converting to square inches, and then converting to cubic feet at the very end, rather than just converting inches to feet once. Also, calm the fuck down. There's no reason to calculate it manually, when you have a tool like sketchup, that's just a stupid waste of time. And it works just fine, you're taking the inside volume of the box, no need to take wood thickness into account... Just quit running your mouth, you're making yourself look like an idiot. Edited July 5, 2012 by LZTYBRN Quote Link to comment Share on other sites More sharing options...
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