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Old 16th December 2013, 07:11 PM   #1
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Default bib calculator

Hi
I want to make a BIB with 215rtf supravox. I am looking for bib calculator and i don't find it, the link is broken.
BIB Calculator - Bigger Is Better Loudspeaker Design
Is there a problem ?
Is there another link ?
Thank s
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Old 16th December 2013, 07:26 PM   #2
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There is another link. Godzilla will need to check in to post it.

dave
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Old 16th December 2013, 07:40 PM   #3
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Thank s
Is there a metric bib calculator ?
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Old 16th December 2013, 07:41 PM   #4
DanHat is offline DanHat  United States
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Martin King includes a BIB simulation in his excellent set of math cad spread sheets.

Quarter Wavelength Loudspeaker Design
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Old 16th December 2013, 09:53 PM   #5
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Can you tell if it's right

metric system non metric system

Fs Fs speaker Fs speaker
Vas Vas (liter) Vas (cu feet)=Vas (liter) *0.035315
Qts Qts Qts
Line lenght L(m)=C/2F=343.4/2F L(inch???)=13464.54/2F
Folded Height L(m)/2 L(inch)/2
Vb(???) Vb(unit???)=20Vas*Qt^1.25 Vb(unit???)=20Vas*Qt^1.25
Sm Sm=????? Sm=Vb*1728/B7 ?????????
Depth How do we calc Depht How do we calc Depht
Width widph=Sm/depth widph=Sm/depth
Z driver Z=line length*0.217
a b c depth/2 depth/2




What is Vb ?
What is Vb unit in metric system and in non metric system
How do we calc Sm in metric system ?
What is Sm unit in metric system and in non metric system
How do we calc Depht ?
Z driver what is 0.217 ?

Thank you for your help !!!
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Old 17th December 2013, 02:42 AM   #6
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I should still have the original excel spreadsheet that was on Godzillas's site. It did have a switch to change between metric and imperial. Please be patient and I will find it and post. Many others have asked for this sheet, and maybe it is time to put it back out there. Originally I had entered many of the common speakers people were using, however, that was quite some time ago and many of them are no longer available. That said, I will see if I can post a clean unlocked version. I will do my best to post this tomorrow evening.
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Old 17th December 2013, 05:13 AM   #7
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Great
Thank s a lot.
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Old 17th December 2013, 07:03 AM   #8
GM is offline GM  United States
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Quote:
Originally Posted by zayne742 View Post
It did have a switch to change between metric and imperial.
Interesting! I don't remember/have one with a 'switch', just one by O'Neil with a metric conversion column: http://www.diyaudio.com/forums/attac..._gm_v2.xls.zip


GM
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Old 17th December 2013, 07:30 PM   #9
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Thank s a lot.
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Old 20th December 2013, 05:13 AM   #10
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https://sites.google.com/site/speake...enclosures/bib
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