Home » Sponsored » Pi Speakers » Is my math right?
Is my math right? [message #40337] Tue, 18 February 2003 14:01 Go to previous message
Dangus is currently offline  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?

 
Read Message
Read Message
Read Message
Previous Topic: Rectangular port on stage series 4 pi?
Next Topic: Ella! Kudos to Brian Cherry and Kevin Haskins.
Goto Forum:
  


Current Time: Fri Sep 06 12:17:29 CDT 2024

Sponsoring Organizations

DIY Audio Projects
DIY Audio Projects
OddWatt Audio
OddWatt Audio
Pi Speakers
Pi Speakers
Prosound Shootout
Prosound Shootout
Miller Audio
Miller Audio
Tubes For Amps
TubesForAmps.com

Lone Star Audiofest