Bose Panaray MA12 Technical Foundation & Discussion - Page 19
Browse online or download pdf Technical Foundation & Discussion for Speaker System Bose Panaray MA12. Bose Panaray MA12 36 pages. Modular line array loudspeaker
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Figure 10. The intensity of a spherical wave falls off by 6 dB per
doubling of distance, a cylindrical wave by 3 dB, and a plane wave by
0 dB per doubling.
(For completeness, it is important to note that only a line source that is infinitely long,
perfectly thin, and equal in magnitude and phase at all points along the line will produce a
cylindrically shaped wave for all frequencies and all distances. However, the behavior of
even a one-meter line source can be better described using the basic properties of cylindrical
waves than by any other means considered.)
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MA12™ Modular Array: Technical Foundation & Discussion
April 2002, © Bose Corporation, All Rights Reserved
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