Loud speaker structure

Details Loud speaker structure Loud speaker structure

1995-04-05

1998-05-05

Tran, Sinh

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Having electrostatic element

381204, 181171, 181172, H04R 2500

Patent

active

057487596

ABSTRACT:
Disclosed is a loudspeaker apparatus having at least one support surface provided therein adjacent to a complaint surround for providing lateral support thereto, the surround mounting the diaphragm of the speaker to a speaker frame for permitting longitudinal movement of the diaphragm with respect to the frame. The support surface may be used with a variety of surrounds. A second support surface may also be provided. The support surfaces may be contoured to achieve a desired response from their engagement with the surround. A negative air spring is formed from a pair of opposed support surfaces contoured to form a necked region therebetween for deformingly engaging a surround formed as a resilient member. The negative air spring negatively balances, or counterbalances the diphragm against the box pressures with the enclosure. The resilient member is formed as a tube for containing a fluid such as air therein. The pressure within the resilient member is controlled in response to a variety of parameters.

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"Improvement of Low-Frequency Response In Small Loudspeaker Systems by Means of the Stabilized Negative-Sspring Principle" The Journal of the Acoustical Society of America Dec. 22, 1970, vol. 49, No. 5 (Part 1) 1971 pp. 1362-1367.

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