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Is my math right? [message #40337]

Tue, 18 February 2003 14:01

Dangus
Messages: 6
Registered: May 2009

Esquire

Hi, I'm doing a bass horn project as some of you may know, and currently I'm calculating the back volume. I am using the first formula found here: Horn Design. Under the second called Compression Chambers. Whenever I use this formula I come up with a negative number. In this particular case, with the following stats:

Fs(28.7) * Qts(0.29) = 8.323 / Fc(35) = 0.2378 - 1 = -0.7622

Well at this point that doesn't work.... So if I do what the formula says, I'll divide the Vas(3.56cu. ft.) by -0.7622 I get -4.761(roughly), which obviously doesn't work right. So, if I were to add 1.5244 to -0.7622(same as just changing it positive), and multiply, the result would be 4.761 instead. Would that be the correct size then for that driver? Or am I totally missing something?

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