Question about OB H frame sub

PDRCanada · 22nd October 2011, 04:26 PM

I have been wondering...hope you guys can help.

Open Baffle 12" subs set in a H frame.....Instead,could you use a 16" piece of heavy duty PVC pipe with the woofer placed in the center fastened to a wood (or whatever) type of ring? This would leave about 2" around the woofer to the pipe.
Would this work? Could you stack 2 of them on top of each other?
Problems with this would be....?

Thanks

highfieldrebel · 22nd October 2011, 08:01 PM

Quarter Wavelength Loudspeaker Design Gallery

Should be fine, if you look at MHK's gallery, the 7th guy down uses some sonotube, I think this is your idea also?

PDRCanada · 22nd October 2011, 10:47 PM

Thanks, that exactly what I was thinking.

StigErik · 28th October 2011, 07:23 AM

Yes, it would work. I'm pretty sure that the dipole peak will be somewhat stronger/bigger with this type of frame, compared to a more traditional rectangular frame.

What length of pipe would you be using ?

22nd October 2011, 04:26 PM	#1
PDRCanada diyAudio Member Join Date: Jun 2008	Question about OB H frame sub I have been wondering...hope you guys can help. Open Baffle 12" subs set in a H frame.....Instead,could you use a 16" piece of heavy duty PVC pipe with the woofer placed in the center fastened to a wood (or whatever) type of ring? This would leave about 2" around the woofer to the pipe. Would this work? Could you stack 2 of them on top of each other? Problems with this would be....? Thanks __________________ Life in a northern town.....

22nd October 2011, 10:47 PM	#3
PDRCanada diyAudio Member Join Date: Jun 2008	Thanks, that exactly what I was thinking. __________________ Life in a northern town.....

28th October 2011, 07:23 AM	#4
StigErik diyAudio Member Join Date: Feb 2008	Yes, it would work. I'm pretty sure that the dipole peak will be somewhat stronger/bigger with this type of frame, compared to a more traditional rectangular frame. What length of pipe would you be using ? __________________ dipoles dipoles dipoles dipoles dipoles dipoles dipoles dipoles and dipoles

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22nd October 2011, 08:01 PM	#2
highfieldrebel diyAudio Member Join Date: May 2009	Quarter Wavelength Loudspeaker Design Gallery Should be fine, if you look at MHK's gallery, the 7th guy down uses some sonotube, I think this is your idea also?

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