150Hz is larger than 1 meter so the mold have to be made from two parts. Can we agree on 1 meter Iwata 200Hz? Throat 3"54? Iwata could be calculated for 2" and conical adapter for smaller horns employed.
You can probably not include most US purchases if this is now the route.
I'm interested in the 12" OSWG, but not right now. Will they be a standard part so I could order some say in the new year?
Must finish other projects first.
Must finish other projects first.
I agree but my interest would be for 2 projects hence, so my opinion shouldn't affect anything.A 500Hz version would be even better.
It 12" axisymmetrical OS with a typical mouth diffraction on-axis that you can minimize with radius >5" or JMLC mouth. Curves 0/15/30/45/60/90deg. Elliptical OS cannot be modeled with AxiDriver just two axes alone.
Personally I think Iwata 250Hz/2" with 1" adapter is a best choice as you have headroom for group delay. If you need a midrange horn then T=0 axisymmetric JMLC is a better choice. We have such 200Hz for 15-18cm fullranges.
Personally I think Iwata 250Hz/2" with 1" adapter is a best choice as you have headroom for group delay. If you need a midrange horn then T=0 axisymmetric JMLC is a better choice. We have such 200Hz for 15-18cm fullranges.
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It 12" axisymmetrical OS with a typical mouth diffraction on-axis that you can minimize with radius >5" or JMLC mouth. Curves 0/15/30/45/60/90deg. Elliptical OS cannot be modeled with AxiDriver just two axes alone.
Personally I think Iwata 250Hz/2" with 1" adapter is a best choice as you have headroom for group delay. If you need a midrange horn then T=0 axisymmetric JMLC is a better choice. We have such 200Hz for 15-18cm fullranges.
What I think the big issue is with everything I talk to is that majority do not want HUGE horns.
So what does it take to get a OS waveguide that is no larger then 15" diameter?
What I think the big issue is with everything I talk to is that majority do not want HUGE horns.
So what does it take to get a OS waveguide that is no larger then 15" diameter?
Doug, we understand that you do not want large horns. You have said this repeatedly. The good news is that there are plenty of medium size horns available (both new and used).
There are those of us who like big horns and who like setting up our systems with cutoffs and dispersion control below 800 Hz or so. If this is not your priority then fine. Importantly, there are not a large number of large horns available (new or used) at a reasonable price or with an "interesting" contour.
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