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Posted by Romy the Cat on
04-16-2013
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fiogf49gjkf0d Attila from Hungary send me emails telling that he got CNC lathe, carver and the rest of gear and that he is very much willing to make horns. He asked: “I would like to ask your opinion, what type of horns people most need”. I find it is interesting question. The guy wants to optimize his operation and would like to research what is the most demanding type of horns. Sound very reasonable and I would like to run this subject at my site.
So, if you start your own horn making operation and have option to make any profiles and types then what products would you offer to public?
The Cat
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Posted by zztop7 on
04-16-2013
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fiogf49gjkf0d Public - now that is broad. The Public wants easy; not perfect. I would offer a simple two way: 12" paper cones LF with first order low pass [not a horn]. Iwata or Yuichi radial hyperbolic [MF & HF] horn above with first order medium-high pass.
http://www.geocities.jp/arai401204/Horn/A290S/A290-S90.html
Best to all, zz.
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Posted by tuga on
04-17-2013
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fiogf49gjkf0d I would definitely produce either Le Cleac'h or Tractrix eliptical profiles as these are far more domestic friendly, especially in Europe were rooms are rather small and ceilings low.
And perhaps a half-circular (80/150Hz) for the same as well as cost reasons...
Cheers,
R
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Posted by Romy the Cat on
04-18-2013
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fiogf49gjkf0d This is an interesting metal exercise – what would be the most beneficial for audio public and what would be “signaturial” for a manufacturer. Since the company do not turn the horn as most of the people do but use CNC machine then it would be very interesting if they design a product that would be not individual horns but a horn assembly. I would like to see the Macondo-like assembly of elliptical Tractrix 3-4 horns, organized by very intelligent frame. No drivers, no high price, juts very flexible and intelligent horn origination. The removable back plates that would accommodate any drivers: from 1” to 2” let say. The subject of upperbass horn is very interesting. The 110 cm maximal diameter is fine but it would be interesting if it possible to get more by “smart” design. Let pretend that we has a stock of 4 horns in Macondo configuration (nothing else works). So the topmost horn is elliptical and almost circular. The next horn is eliptical but in slightly squarish shape. The next horn is still eliptical but even with more squarish edges. The last uppers horn is almost rectangular, let say 80Hz but it still has some curvature and elipticness. If all of it gradually organized in a very elegant assembly and supplemented with a frame that can care everything in time-align fission then it might be very interesting.
I would say that a set of 3-4 unfinished horns might be sold for $5K-$7K, juts to keep the price intentionally low. The reality is that with CNC programmed to make such of assembly is very easy and would cost very low. If such of kit would be properly designed I would very much endorse it, but it must be properly designed and made.
Rgs, The caT
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Posted by zztop7 on
04-18-2013
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fiogf49gjkf0d I think that $5K-$7K might be adequate for the project if no profit was involved. Different path: CNC for the mold, but fiberglass boat style construction - gel coat, chopped fiberglass, dense closed cell spray in foam for structural strength, final coat of glass etc. / or use carbon fiber instead of fiberglass. The carbon fiber would not have to be a layup. Newer Lamborghinis & Callaway golf clubs are using an easier system developed at the University of Washington. This production would not have the typical exterior horn appearance; it would be an exterior block appearance. The interior horn layout would be as you the Cat described.Best to you,zz.
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