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<blockquote data-quote="kjwiehoff" data-source="post: 573514" data-attributes="member: 556915">Quote:Originally Posted by reqias for tuning, usually people tune around 30~33hz for daily driving.Code:x = cross sectional area of port (inches^2)y = net volume of box after displacements (inches^3)z = tuning frequency of port (hz)PL= Port length (inches)x[1.84 * 10^8]&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; ___________________ - .823 * \/&nbsp; xPL =&nbsp; &nbsp;&nbsp; y[z\.159^2]and remember...do all math on TOPdo all math on BOTTOMdivide TOP by BOTTOMSUBTRACT .823*square root of Xthat is port length..using this. i got a port length of 22368.8 in. that obviously wont work. where did i go wrong. my x=52, y=3276 cubes, z=33hz..... please help the slow&nbsp; //content.invisioncic.com/y282845/emoticons/help.gif.cee8f684da1ba626487a8bc51152e1ec.gif&nbsp; i&#039;m not asking for money, just answers. thank you</blockquote>

[QUOTE="kjwiehoff, post: 573514, member: 556915"] Quote: Originally Posted by req i as for tuning, usually people tune around 30~33hz for daily driving. Code: x = cross sectional area of port (inches^2) y = net volume of box after displacements (inches^3) z = tuning frequency of port (hz) PL= Port length (inches) x[1.84 * 10^8] ____ _______________ - .823 * \/ x PL = y[z\.159^2] and remember... do all math on TOP do all math on BOTTOM divide TOP by BOTTOM SUBTRACT .823*square root of X that is port length. . using this. i got a port length of 22368.8 in. that obviously wont work. where did i go wrong. my x=52, y=3276 cubes, z=33hz..... please help the slow [IMG]//content.invisioncic.com/y282845/emoticons/help.gif.cee8f684da1ba626487a8bc51152e1ec.gif[/IMG] i'm not asking for money, just answers. thank you [/QUOTE]

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