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OJAS is the creative pen name of Devon Turnbull. As a university student studying Audio Engineering he started using the name across a variety of disciplines including graffiti, music, graphic design and clothing design. In 2003 Turnbull co-founded the clothing brand Nom de Guerre with Isa Saalabi, Wil Whitney and Holly Harnsongkram. For the next decade, while primarily working in fashion, the name OJAS was kept alive on sound sculptures Turnbull was crafting for himself and a growing number of audio enthusiasts around the world. With a particular interest in high efficiency speakers and low powered tube amplifiers, Ojas audio equipment aims to bring realistic, natural sound to the listener. These products are the result of two decades of experimentation, engineering and explorations in the audio underground.
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The Nature of Sound


Sound is considered to be of two kinds, one a vibration of ether the other a vibration of air.
The vibration of ether which cannot be perceived in the physical sense, is considered the principle of all manifestation the basis of all substance the “music of the spheres” it forms permanent numerical patterns which are the basis of the worlds existence, this kind of vibration is not caused by physical shock as are audible sounds. It is therefore called anahata “unstruck”, the other kind of sound is an impermanent vibration of air, an image of the ether vibration. It is audible and always produced by a shock. It is therefore called ahata or “struck”.
Struck sound is said to give pleasure. Unstruck sound leads to liberation (Narada Purana).
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High Quality Loudspeaker Horn Systems

$200.00
$200.00

$200.00
$200.00

Details

High Quality Loudspeaker Horn Systems

(History, Theory & Design)

by Bjørn Kolbreck & Thomas Dunker

In 1919, Arthur Gordon Webster published his seminal paper on horn theory, which gave impetus to a large body of research work. Since then, many papers, patents and book chapters have been published on the topic, but during the century that has since elapsed, no book has been published that exclusively covers the subject of horns. Until now.


Key Features

  • This book is the result of over 15 years of research and study by the authors
  • Authors Bjørn Kolbrek, PhD and Thomas Dunker detail horn design through the last century
  • Over 1,000 pages, this hardcover book includes extensive illustrations throughout
  • A valuable one-of-a-kind resource for hobbyists and professional designers

 

With extremely detailed coverage of the history, theory, and design of horns and horn loudspeakers, the High Quality Horn Loudspeakers book is a valuable resource for audio professionals and loudspeaker enthusiasts alike. With over 1,000 pages and thoroughly illustrated, this hardcover resource is the first book devoted exclusively to horn loaded speaker systems and design.

High Quality Loudspeaker Horn Systems
High Quality Loudspeaker Horn Systems