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Database simulation
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tv00 View Drop Down
Old Croc
Old Croc


Joined: 10 August 2009
Location: Denmark
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Points: 1886 		Post Options Post Options   Thanks (0) Thanks(0)   Quote tv00 Quote  Post ReplyReply Direct Link To This Post Posted: 20 April 2016 at 2:15pm
I think all you got to do is to add cone & cutout volume to rearchamber, and remove reardriver volume from frontchamber. (cutout volume depends on from which side driver is mounted. Remember polarity might be reversed (or not if phase shifts at crossover freq)
www.facebook.com/babysoundsystem
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Junior253 View Drop Down
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Joined: 08 September 2015
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Points: 46 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Junior253 Quote  Post ReplyReply Direct Link To This Post Posted: 22 April 2016 at 8:55am
thank a lot for your response
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mhtplsh View Drop Down
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Joined: 27 August 2007
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Points: 112 		Post Options Post Options   Thanks (0) Thanks(0)   Quote mhtplsh Quote  Post ReplyReply Direct Link To This Post Posted: 24 June 2017 at 3:37am
Originally posted by bitzo bitzo wrote:

Mt121 without any horn for 2" compression driver

s1=360.8
s2=872.2
con=25.3
s3=1944
con=21
vrc=17.6
lrc=14.8
fr=0
tal=0
atc=1108
vtc=615.75


I am not able to understand how atc 1108 is calculated here.
Herewith posting picture with detailed drawing. of MT 121.
 
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Daniel Twellmann View Drop Down
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Joined: 02 October 2011
Location: Denmark
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Points: 48 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Daniel Twellmann Quote  Post ReplyReply Direct Link To This Post Posted: 08 July 2017 at 8:45am
14cm*14cm*pi*1.8cm = 1108cm^3
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Contour View Drop Down
Young Croc
Young Croc


Joined: 03 March 2004
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Points: 597 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Contour Quote  Post ReplyReply Direct Link To This Post Posted: 08 July 2017 at 9:24am
Atc should be an area not a volume?
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Daniel Twellmann View Drop Down
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Joined: 02 October 2011
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Points: 48 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Daniel Twellmann Quote  Post ReplyReply Direct Link To This Post Posted: 08 July 2017 at 2:17pm
Yes, I just showed how 1108 was calculated :)

ATC and vtc should be switched around

Edited by Daniel Twellmann - 08 July 2017 at 2:18pm
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mhtplsh View Drop Down
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Joined: 27 August 2007
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Points: 112 		Post Options Post Options   Thanks (0) Thanks(0)   Quote mhtplsh Quote  Post ReplyReply Direct Link To This Post Posted: 11 July 2017 at 2:01pm
From where you use 1.8 in the calculations. The plywood here is 12mm thick.
Please let me know what do you mean by ATC and vtc should be switched.
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Alexandre 25 View Drop Down
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Joined: 26 October 2019
Location: france
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Points: 1 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Alexandre 25 Quote  Post ReplyReply Direct Link To This Post Posted: 26 October 2019 at 4:29pm 
Hello everyone

I am looking for akabak curve for the Beyma sb12,sb15 with the script if you have this.

have a good day
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