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Ever think of building a Cornu Spiral horn? Now you can!
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Old 23rd September 2018, 05:25 AM   #2531
planet10 is offline planet10  Canada
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Ever think of building a Cornu Spiral horn? Now you can!
Original Cornu was for an 8” Lowther.

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Old 23rd September 2018, 11:57 AM   #2532
Karl71 is offline Karl71  United States
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Would it work in the contemporary DIY versions? That should have been my question.
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Old 23rd September 2018, 12:38 PM   #2533
xrk971 is offline xrk971  United States
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Ever think of building a Cornu Spiral horn? Now you can!
I thought original Cornu was FE108EZ? An 8in driver would make for a huge Cornu. Base size is about 28in on an edge and 5.5in deep.
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Old 23rd September 2018, 02:54 PM   #2534
Karl71 is offline Karl71  United States
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Yes, originally it was. Digging a little into the Cornu sites, I did find reference (in German) to a very large Cornu with an eight inch Lowther, and a pic of it.

I can’t link because I’m using my tablet.
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Old 23rd September 2018, 07:12 PM   #2535
planet10 is offline planet10  Canada
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Ever think of building a Cornu Spiral horn? Now you can!
Click the image to open in full size.

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Old 23rd September 2018, 08:42 PM   #2536
Karl71 is offline Karl71  United States
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Thanks, Dave. That’s the pic.

Now, if that could be done with a DX55...
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Old 23rd September 2018, 09:15 PM   #2537
Lingwendil is offline Lingwendil  United States
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If anybody needs help resizing their plans to work with different sizes, I found that this site will make a multipage PDF of the plans for you, and then you just need to trim and fit them together.

Wall art generator - Rasterbator

I went to print out plans at work, and since all of our corporate devices run Chrome OS, and don't have Acrobat or similar, they just use the Google suite of office type tools. Without a more advanced program I found it a bit tricky to impossible to tile pages. Using the Rasterbater online tool, I now have printed up plans for 20", 24", and 28" cornu builds taped together and ready to use.

Of course, you will have to play with your printer settings, but it was pretty simple to get it all going for me.

Time to dig out my extra pair of TC9s, and some black foamcore to start laying out a pair of front/back panels
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Old 23rd September 2018, 09:34 PM   #2538
Karl71 is offline Karl71  United States
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Lingwendil -

Thanks very much!

I haven’t heard of the DX55 being used in a Cornu. I wonder why, since there is precious little out there in terms of cabinets.
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Old 23rd September 2018, 10:07 PM   #2539
Karl71 is offline Karl71  United States
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Xrk971 -

Do you think any dimension needs to be changed to accommodate the DX55?
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Old 23rd September 2018, 11:29 PM   #2540
xrk971 is offline xrk971  United States
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Ever think of building a Cornu Spiral horn? Now you can!
I would have to run simulation if you want exact scaling needed for DX55.
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