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RE: Somehow the Khorn 3d folding has always been hard to visualize

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Bill Fitzmaurice

In Reply to: RE: Somehow the Khorn 3d folding has always been hard to visualize posted by Edp on February 04, 2023 at 10:58:31

It's hard to visualize for sure. '2d' is usually a constant width horn, so a simple side view tells you all you need to know. The issue with constant width horns is resonance coloration when the width reaches 1/4 wavelength. In a sub that doesn't go above 100Hz, where 1/4 wavelength is 2.8 feet, it's not a problem. But to go to 400Hz or higher, like a KHorn or my DR series, constant widths and parallel surfaces are a major problem. It's not difficult to design folded horns without constant widths or parallel surfaces using modern drawing software, but it's a bear without them. I managed it with my earliest DR horns, as did PWK with his KHorns, but it easily increases the prototyping process time by a factor of ten.

Follow Ups:

At times I wonder if we would had gotten a Khorn if software existed - Edp 13:54:29 02/04/23 (2)
Never know, but could see software suggest " not recommended " would undo the creation process, resulting in less diversification.

The old art/innovator vs pure science dilemma.
I'm a science type, but not dismissive of innovators.
Appreciate your time

Edits: 02/04/23
- RE: At times I wonder if we would had gotten a Khorn if software existed - tomservo 13:20:29 02/07/23 (1)
  Folding the horn was in his head and was clever
  
  Where software could give different results is in modeling the actual horn and driver. Modern woofers would generally need a smaller throat area and smaller back volume BUT that also means the horn could be larger in a given box volume.
  - RE: At times I wonder if we would had gotten a Khorn if software existed - Bill Fitzmaurice 14:02:41 02/07/23 (0)
    With software he wouldn't have needed the 'rubber throat', knowing without having to experiment what size throat would give the best result.

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