H - Electricity – 04 – R
Patent
H - Electricity
04
R
349/60
H04R 1/24 (2006.01) H04R 23/02 (2006.01)
Patent
CA 1219055
Abstract of the Disclosure A multi-driver loudspeaker combination includes a first transducer of the dynamic radiator type, designed to reproduce sound in the lower portion of the audio frequency range. The radiator of the first transducer includes a diaphragm. The combination also includes a second transducer designed to reproduce sound in the upper portion of the audio frequency range. A base support, which is somewhat horn-shaped, is mounted on the first transducer diaphragm, a voice coil form, or dust cap, or some combination of these, with- in the periphery of the first transducer diaphragm, and extends away from the first transducer. This base support terminates at an edge remote from the first transducer. The edge is in the form of a closed plane curve. The second transducer includes a diaphragm having a perimetral edge which is joined to the edge of the base support to support the second transducer from the first. This mounting structure permits orientation of the second transducer axis at an angle to the axis of the first transducer. Another multi-driver loudspeaker combination comprises the first transducer, a second transducer including a piezoelectric crystal driver, and an adhesive for gluing the piezoelectric crystal of the second transducer to the dust cap of the first transducer. Again, the axis of the second transducer can be oriented at an angle to the axis of the first transducer.
468772
Harman International Industries Incorporated
Oyen Wiggs Green & Mutala
LandOfFree
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