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In the Forum: Horn-Loaded Speakers
In the Thread: 60hz, GPA-515-8ghp horn...
Post Subject: Think ahead architecturallyPosted by Romy the Cat on: 7/1/2008

 chaos wrote:
i searched your site and the web, but could not find a pic with the same diaphragma.
it seems to be completely alu, but with a clear plastic-ring glued over the border of the hemisphere and the flat part with the grooves.its not the same like the white suspension, its just a 0,2 inches wide ring of clear something, the suspension itself seems to be alu. bought it new in 1994 as far i remember.(hard for me to find the right words, i apologize for my bad english..). red part in the pic alu, black clear plastic.

Anything like this?

VitavoxS2_Clear_cone.jpg

 chaos wrote:
…i dont want to make to much compromisses...

It is not about compromises. With two ways design everything is pretty straight forward. When you will be doing your 60Hz horn include into your design a perspective lover midrange channel from approximately 300-to 1000Hz. I know, you not doing it but if your consider it architecturally while you do your midbass horn then it will be much ease for your what you decide to try it.

 chaos wrote:
..but as you know, they are difficult to find and expensiv, my budget is limited. same for the alnicos, the price is 50% higher, no easy decision for me.

And this is another reason why I would stay with ceramic for bass. It is not because you are on budget but rather because  the fools have blew up the price for Alnico drivers – completely without any rational or reasons. Not to mention that in your case Alnico might not be preferable...

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