H - Electricity – 04 – R
Patent
H - Electricity
04
R
349/60, 349/72,
H04R 7/00 (2006.01) H04R 1/24 (2006.01) H04R 9/06 (2006.01)
Patent
CA 1144273
AN IMPROVED COAXIAL LOUDSPEAKER SYSTEM MARSHALL D. BUCK ABSTRACT OF THE DISCLOSURE The present invention is an acoustic filter for use in combination with a coaxial loudspeaker system which includes a low frequency loudspeaker and a high frequency speaker which is disposed acoustically in- front of the low frequency loudspeaker. The acoustic filter includes a pair of parallel, perforated sheets which are separated from each other a suitable distance and which are joined together at their peripheries in any appropriate manner so that they enclose an airspace therebetween in order to form a single section filter. The acoustic filter is disposed acoustically in front of the low frequency loudspeaker and acoustically in back of the high frequency loudspeaker so the acoustic filter inhibits the high frequency sounds of the high frequency loudspeaker from interacting with the internal sidewall of the conically shaped diaphragm of the low frequency loudspeaker. -1-
354018
Cerwin-Vega Inc.
George H. Riches And Associates
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