TURBINE
SPIRAL SEGMENTED HORN
Wood horns are made by wood-turning or segmenting, in some cases both. Both techniques have their pros and cons. The wood-turning allows for circular curve, but turning a large piece of timber is complicated. The weight of the finished horn is on the heavy side as well, and even though that yields good sonic results, it`s disadvantages become obvious when it's time to move or even reposition such massive horns. The solid wood horns also acquire high maintenance level; they tend to deform or even crack if they get too dry / humid. Segmented wood horns are made from solid wood or plywood and are not that heavy, which unfortunately also leads to more material resonances. That`s why it`s important to additionally dampen such horns.
After designing the spiraled flower inspired Soundwinde horns it led to discovery of spiral segmented horn, which turned out to be a rediscovery, as you can see in the photo of a 1900 Bettini Phonograph.
Auredes Turbine horn is a successor to the line of excellent music reproduction devices and coupled with the newest technology brings superb performance.
Auredes Turbine horn is a successor to the line of excellent music reproduction devices and coupled with the newest technology brings superb performance.
Inspiration for Soundwinde -
Convolvulus Arvensis
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Vintage Bettini - Edison phonograph
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The Turbine Horn has an optimal weight/strength ratio. The material twisting and warping interlocks the segments together, forming a rigid structure, which is laminated, reinforced and dampened. The prototyped design had a Tractrix curve, Q of 150Hz and fit approx. 4-5 inch Full range speakers (250Hz - 20000Hz) with assisted Subwoofer under 250 Hz.
24 segments
12 segments
Prototyping
The cardboard segments were temporarily glued together and then laminated with epoxy. This was the last, and one of the only photos made of the cardboard 1:1 model before it was recycled. The horn throat in the photo is already cut away and discarded, so it looks shorter than it was designed. The cardboard model wasn't useful for measurements but it did provide valuable experience in crafting a spiraled segmented horn. Another segmented plywood prototype is currently being researched alongside with matching spiraling speaker membranes.
© 2022 Matija Horvat
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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.
