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Silver Member Username: Theweasel2 12 FI SSD, Colorado U.S. of A Post Number: 894 Registered: Mar-06 | i'm hopelessly ignorant at tuning aero ports and calculating port displacement so can someone design me a box 23" wide, 18" deep, and however tall it has to be. needs to be 6 cu ft after displacement and tuned to 22 hz. this is a home theatre box for a 15" Arsenal |
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Platinum Member Username: Rovin4 10 Pioneer... Post Number: 11808 Registered: Jul-05 | http://www.carstereo.com/help/Articles.cfm?id=31 http://www.the12volt.com/caraudio/boxcalcs.asp DIY ftw ...... |
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Gold Member Username: InsearchofbassPost Number: 5679 Registered: Jun-04 | basically the way I understand it it is area inside the port. So if its flared the increased width will raise the tune so youll need a longer length for the same tune |
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Gold Member Username: StnorrisRE SX 15, IA US Post Number: 2189 Registered: Apr-06 | if its 6 cuft net, and you want 22hz it can have 2 4" ports .....21.4" long each or 3 3"....18.5" long each (flared ports) your looking at some pretty long ports and not getting much port area....what size/kind ports do you plan on using?? |
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Gold Member Username: InsearchofbassPost Number: 5680 Registered: Jun-04 | so a three inch port 3 x 3.25= 9.75 3.25 x 3.50=11.375 3.50 x 3.75=13.125=33.75 volume of port which would be equal to a 3 inch round by 11.25 inch long port |
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Silver Member Username: Theweasel2 12 FI SSD, Colorado U.S. of A Post Number: 895 Registered: Mar-06 | the only ones i could find were the aero ports off of elemental designs website. i'm open to anything |
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Gold Member Username: InsearchofbassPost Number: 5681 Registered: Jun-04 | i did this wrong...so a three inch port 3 x 3.25= 9.75 3.25 x 3.50=11.375 3.50 x 3.75=13.125=33.75 its 34.25 but you get the drift |
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Gold Member Username: InsearchofbassPost Number: 5683 Registered: Jun-04 | we might be trying our hand at making aero ports soon (smiles) |
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Gold Member Username: InsearchofbassPost Number: 5685 Registered: Jun-04 | 2.50 cubic feet net would need a 27.66 inch long port for a 35 hz tune but flared like I showed would need a 28.44 inch long port .78 inches longer for the same port tune |
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Gold Member Username: InsearchofbassPost Number: 5686 Registered: Jun-04 | im wrong again but im not gonna correct it bottom line its simple math once you understand what your changing and the port will always be longer using a flared port |