simming question

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What would be the effect of basically adding a helmholz resonator (br
port) to a scoop with a huge rear chamber and short horn path?

How can one sim a desgin like this? And does it allready exist and what is it called?

I think you could sim it as a scoop with huge rear chamber, but then how would you sim the effect of the br port? and would it even be adviceable?

So basically something like this:

but the only way i can sim it is like this

Edited by Teunos - 24 August 2009 at 11:02am

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Teunos Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 23 November 2008 Location: The Netherlands Status: Offline Points: 1799	Post Options Post Reply Quote Teunos Report Post Thanks(0) Quote Reply Topic: simming question Posted: 24 August 2009 at 10:59am
	What would be the effect of basically adding a helmholz resonator (br port) to a scoop with a huge rear chamber and short horn path? How can one sim a desgin like this? And does it allready exist and what is it called? I think you could sim it as a scoop with huge rear chamber, but then how would you sim the effect of the br port? and would it even be adviceable? So basically something like this: but the only way i can sim it is like this Edited by Teunos - 24 August 2009 at 11:02am
	Best regards, Teun.

bitzo Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 20 November 2007 Location: Italy Status: Offline Points: 977	Post Options Post Reply Quote bitzo Report Post Thanks(0) Quote Reply Posted: 24 August 2009 at 11:13am
	Hi, I think you have to sim the second drawing like a tapped horn. Because the driver is inside the horn mouth. However you can't sim on hr a scoop with a br port, I check all the driver placement but hr sim only 6th order cabs. cheers, bitzo
	United Roots SoundSystem site

Teunos Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 23 November 2008 Location: The Netherlands Status: Offline Points: 1799	Post Options Post Reply Quote Teunos Report Post Thanks(0) Quote Reply Posted: 24 August 2009 at 12:08pm
	How can you sim it like a tapped horn since there is a huge chamber?
	Best regards, Teun.

bitzo Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 20 November 2007 Location: Italy Status: Offline Points: 977	Post Options Post Reply Quote bitzo Report Post Thanks(0) Quote Reply Posted: 24 August 2009 at 12:15pm
	ap=s1=s2=500 lpt=con between s1 and s2=0.1 s3=area on the baffle start s4=area on middle of the baffle s5=3600 edit: if 3600 is the area at the end of baffle. you have to calculate the other con value cheers, bitzo Edited by bitzo - 24 August 2009 at 12:16pm
	United Roots SoundSystem site

mobiele eenheid Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 15 August 2004 Location: Netherlands Status: Offline Points: 1568	Post Options Post Reply Quote mobiele eenheid Report Post Thanks(0) Quote Reply Posted: 24 August 2009 at 10:32pm
	Sim it as a tapped horn in HR, export, import in AkAbak, add the port/duct. Best regards Johan