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A Low-Cost End-Fire Acoustic Radiator

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A low-cost end-fire acoustic radiator has been developed which consists of an array of hotels drilled in a pipe to which is attached a horn compression driver. A mathematical model allows the size, spacing, and number of hotels to be optimized. Prototype pipes were constructed and tested in an anechoic cchamber, and the results show satisfactory agreement between theoretical and measured results.

JAES Volume 39 Issue 7/8 pp. 540-550; July 1991
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AES - Audio Engineering Society