need help
I am interested to finish a complete commercial product, A CORNU SERIES.
For this, i need a complete speaker testing room and software to check performance mathematically. Had anyone tried the same with then fanatics ?
i am planning to construct Accoustic Diffuser and Absorber.
as below :
Acoustic Diffuser Made Out Wooden Tinder Stock Photo 373867489 - Shutterstock
http://www.soundservice.co.uk/images/eggboxfoam1.jpg
please help.
I am interested to finish a complete commercial product, A CORNU SERIES.
For this, i need a complete speaker testing room and software to check performance mathematically. Had anyone tried the same with then fanatics ?
i am planning to construct Accoustic Diffuser and Absorber.
as below :
Acoustic Diffuser Made Out Wooden Tinder Stock Photo 373867489 - Shutterstock
http://www.soundservice.co.uk/images/eggboxfoam1.jpg
please help.
Just a couple of things. We are making Cornucopya's. These are copies of a patented design. I have a feeling you might want to research before doing anything more. Here is a link.
Impressum
Secondly, when constructing the spirals, you may find it easier to start each horn as you go around rather than one horn vein at a time. (see photo) I found it was much easier that way. Other than that, nice to see the work you are putting into these.
Impressum
Secondly, when constructing the spirals, you may find it easier to start each horn as you go around rather than one horn vein at a time. (see photo) I found it was much easier that way. Other than that, nice to see the work you are putting into these.
Attachments
Just measured the Escape. No matter what door I measure, none allows for a 48" piece of ply. On a brighter note, I made it to the reprographics place today to get the pattern made.
Hey Cal. Roof rack?
I've got a pair of the TangBands so I really want to see what you come up with!
I miss my truck 
I suppose I will use the roof rack but that would be the first time so I have a feeling my honey will get me to wrap them in towels first. They look rather decorative rather than duty. 🙂
I suppose I will use the roof rack but that would be the first time so I have a feeling my honey will get me to wrap them in towels first. They look rather decorative rather than duty. 🙂
I will use the Escape but if I rub the shine off them racks, I'll be gittin' the evil eye from you know who.
I went looking for a 36" slide cutter to make things nice and square on the foam. Found one - only $949.00.
Went home and decided to bang together a jig. Took a while to cut the foam but the result was worth it. It's as clean if not better than the factory edge.
All 92' of the horn veins are ready and the pattern is taped together. Holy bejeezuz that's a big speaker. The pattern in the center is your standard 8x11 sheet.
I'll get the wood on the next non-rainy day.
Went home and decided to bang together a jig. Took a while to cut the foam but the result was worth it. It's as clean if not better than the factory edge.
All 92' of the horn veins are ready and the pattern is taped together. Holy bejeezuz that's a big speaker. The pattern in the center is your standard 8x11 sheet.
I'll get the wood on the next non-rainy day.
Attachments
Big.......
Waiting to see response for bigger size........
Me did pdf drafted on ACP sheet through some commercial CNC.
Waiting to see response for bigger size........
Me did pdf drafted on ACP sheet through some commercial CNC.
Great Help Cal........
It means other than cornu.de, no one can manufacture them ?
Cornu is a mathematical design, than how it could be patented ?
Its like some one is doing patent for rectangular box ..........
Hijacked buddy with a bigger SUV.
Layout complete, and have started forming the foam. Probably nothing today as I will be spending the next 6 or 7 hours in a boomlift and probably won't feel like standing when I get home.
Layout complete, and have started forming the foam. Probably nothing today as I will be spending the next 6 or 7 hours in a boomlift and probably won't feel like standing when I get home.
@ SDJKQS:
The Name "Cornu" is protected and the Spiral Horn Design (at least Parts of them) is patented here in Germany. At least Germany.
D.W.
The Name "Cornu" is protected and the Spiral Horn Design (at least Parts of them) is patented here in Germany. At least Germany.
D.W.
The patent is dated 12.01.04 so add 15 years and we have a bit less than 2 years until the patent expires.
dave
Sorry Dave - In Germany, Patent Protection is valid for 20 Years from filing the Patent with the Patent Office and can be extended by 5 Years upon Application.
One can make DIY cornu horns all you want. Just can’t sell it commercially. The design is not just a mathematical function like “a box”. It’s a special one chamber to four horns with two lengths of horns and horn mouths occupy entire periphery for one of the largest throat to mouth expansion ratios in a BLH in such a compact speaker. The efficiency is very high, hence the bass is full, deep and loud.