Multiple loudspeaker

Details Multiple loudspeaker Multiple loudspeaker

1990-04-27

1993-03-09

Kuntz, Curtis

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Plural or compound reproducers

381158, H04R 2500

Patent

active

051931192

ABSTRACT:
A multiple loudspeaker includes a housing and a first speaker (a woofer) supported by the housing. The first speaker includes a first diaphragm. A support for supporting a second speaker (a tweeter) is provided, and the tweeter support is supported by the housing. A portion of the support for the tweeter is spaced from the first diaphragm (the woofer diaphragm), and the tweeter is spaced from the woofer diaphragm. The tweeter support can be in the form of a protective grill or in the form of an annular ring. A sponge damper is attached to the spaced portion of the tweeter support. The tweeter includes a second diaphragm (the diaphragm for the tweeter) and a piezoelectric transducer. The tweeter diaphragm is attached to and is supported by the sponge damper. The piezoelectric transducer is attached to and supported by the tweeter diaphragm and is spaced from the woofer diaphragm. The piezoelectric transducer faces and is spaced from the woofer without an obstruction being present between the piezoelectric transducer and the woofer diaphragm. The surface of the woofer diaphragm reflects the sound waves emitted from the rear of the piezoelectric transducer and the rear of the tweeter diaphragm.

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