Joseph A. D'Appolito is best known as the developer of the "D'Appolito Configuration" which was first described in his "A Geometric Approach to Eliminating Lobing Error in Multiway Loudspeakers".[1] This configuration is recognized by loudspeakers which have two midrange or woofer drivers arranged vertically above and below the tweeter[2] and implements the 3rd order (18dB/octave) crossover allowing the drivers to have similar horizontal dispersion, resulting in absence of any sudden change in directivity with frequency. The loudspeaker configuration is also known as a midwoofer-tweeter-midwoofer (MTM) configuration. D'Appolito is the author of "Testing Loudspeakers" and a contributing editor to AudioXpress magazine.[3] He is also the owner of a consulting firm, Audio and Acoustics, Ltd. whose clients include Snell Acoustics; HECO/Recoton, GmbH and Usher Audio Technology.[2]
[edit] References
- ^ AES 74th Convention, September 1983
- ^ a b Joseph A. D'Appolito biographical sketch
- ^ AudioXpress magazine contributors
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