posted
How would you figure out how many watts a sub needs to reach its xmax at a certain frequency. On the tutorials at the JL Audio site they give an example of one of their subs and how many watts it needs to reach xmax, and have it in a table listing this for different frequencies. They compare to another brand of sub to show the importance of xmax. I know this would also depend on what box it is in. Is there an easy way to do this, or would you need a computer program to figure it out? If so what program would figure this out? I am studying engineering and have done up through Calculus classes so the math should be no problem for me.
[ 01-23-2002: Message edited by: ddstang ]
Posts: 327 | From: Pleasanton & Sacramento Ca | Registered: Dec 2001
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posted
you could calculate it but deriving the equation based on simple box model equations available is a pain cuz there is a lot of room for error.....just download the old Boxmodel Program by R. Bullock.....its old, accurate, and best of all free....just plug in parameters (in metric units), set losses to 99999999 (idealized case, unless you know your actual leakage, port, and absorbtion losses) and simply plot......select wattage, and you can view the plot of excursion vs. frequency at the power level you selected..... http://www.muohio.edu/~bullocrm/
have fun
Posts: 307 | From: laredo, tx, usa | Registered: Dec 2000
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