SOUNDWINDE
The design for this Horn was inspired by Morning glory flower (Calystegia Sepium / Convolvulus Arvensis).
The Flowers come in many variations and sizes so the donor specimens were carefully chosen and prepared in a herbarium. In 1920-30 most segmented Gramophone horns were called Morning Glory speakers, and were colorfully painted to resemble flowers. With Sounwinde the organic blueprint was copied 1:1 and adjusted to fit a fullrange 8" speaker. The name Soundwinde comes from plants German name for Calystegia - Zaunwinde.
The Flowers come in many variations and sizes so the donor specimens were carefully chosen and prepared in a herbarium. In 1920-30 most segmented Gramophone horns were called Morning Glory speakers, and were colorfully painted to resemble flowers. With Sounwinde the organic blueprint was copied 1:1 and adjusted to fit a fullrange 8" speaker. The name Soundwinde comes from plants German name for Calystegia - Zaunwinde.
Calystegia Sepium
Flower petal scan
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Convolvulus Arvensis
Segment sketch
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The flower petals have a soft, cloth like texture that doesn't scale well, so many adjustments and prototypes were made to see what material could be used and how it should be implemented. Scale models were made to test out the construction process and materials. The prototypes were made from paper, cardboard, plywood also felt and sheet metal. High density cardboard was chosen to make the Model. The organic curvature and spiraling of the horn gives rigidity to the structure but it also makes construction difficult. The segments are twisted and warped which creates strain on the segment connections.
Gluing the bracing
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Bracing the segments
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Wood bracing was added to the segments to reinforce the prototype. Albeit cardboard isn't the best material for horns, it is perfect for prototyping, as it's inexpensive, light in weight, can be simply cut, glued and is recyclable when the model no longer serves it's purpose. Every segment has 3 diagonally placed bracing and polyethylene / fiberglass support. While bracing helps with the stability of the model, it`s still not nearly enough to suppress the resonances. The model was used to try out different color / finishes, had an 8" Fostex FE206EN mounted with two 18" Monacor SP-46A 500BS in an open baffle providing the bass. While the Soundwinde system provides with extreme details it is also enormous (ø1100mm) and would be best suited for a large living room or as a PA system.
I enjoyed this build and the extreme dynamics but in 2018, after moving into a new Apartment,
they wouldn't fit through the door of my workshop so the prototypes were recycled.
I enjoyed this build and the extreme dynamics but in 2018, after moving into a new Apartment,
they wouldn't fit through the door of my workshop so the prototypes were recycled.
Finished 1:1 Model
© 2022 Matija Horvat
All Rights Reserved. The work contained on this Website is copyrighted, trademarked and under pending patent.
Work presented here is not stock and it may not be reproduced, copied, edited, published, transmitted or uploaded in any way without written permission.
All Rights Reserved. The work contained on this Website is copyrighted, trademarked and under pending patent.
Work presented here is not stock and it may not be reproduced, copied, edited, published, transmitted or uploaded in any way without written permission.
